DWYER

Test & Measurement

test-measurement

Flow & PH Meters

flow-ph-meters

Electricals

electricals

Other Electrical Switches

other-electrical-switches

Mechanical Parts

mechanical-parts

Vacuum Components

vacuum-components

Weight, Force & Pressure Gauges

weight-force-pressure-gauges

The SERIES VF Visi–Float® flowmeter bodies are cut and precision machined from solid, clear acrylic plastic blocks. This construction not only produces a handsome finished product, but permits complete visual inspection. As a result, the Visi-Float® flowmeters are especially popular for medical and laboratory equipment applications. 

SCALES ARE EASY TO READ — The front scale location and white background provides excellent visibility. The direct reading scales are hot stamped into the plastic and will not wear off. Mid–range calibration is established with a master flowmeter. Accuracy is ±5% of full scale for VFA models, ±3% for VFB. Scales average 2˝ long on the VFA models, 4˝ long on VFB. 

DURABLE AND ATTRACTIVE CONSTRUCTION — The machined acrylic bodies of the Visi–Float® flowmeters are practically unbreakable. Fabrication is backed by over 60 years of experience in acrylic instrument machining. The tapered bore is precision machined to a smooth surface that provides perfect visibility of the indicating float. The VFA and VFB models are available with either brass or stainless steel inlet and outlet connections and are tapped for 1/8˝ NPT thread. VFB models 85 and 86 have either 1/4˝ back or 3/8˝ end connections. All standard models employ Buna–N O-rings for leak proof operation and are available with either back or end connections for horizontal or vertical piping. Precision metering valves in brass or stainless steel are available for most VFA and VFB models.   

EASY INSTALLATION — All Visi–Float® flowmeters have metal mounting inserts on rear for panel mounting. They can also be supported directly by system piping.  

Service: Compatible gases & liquids.  
Wetted Materials: Body: Acrylic plastic; O-ring: Buna-N (fluoroelastomer available); Metal parts: Brass standard, SS optional; Float: SS, black glass, aluminum, K monel depending on range.  
Temperature & Pressure Limits: Without valve: 100 psig (6.9 bar) @ 150°F (65°C); 150 psig (10 bar) @ 100°F (38°C); With valve: 100 psig (6.9 bar) @ 120°F(48°C).  
Accuracy: VFA = 5% of FS; VFB = 3% of FS.  
Process Connection: 1/8˝ female NPT. VFB ranges 85 and 86 have 1/4˝ NPT back connections or 3/8˝ NPT end connections. These ranges not available with brass valves.  
Scale Length: VFA 2˝ typical length; VFB 4˝ typical length.  
Mounting Orientation: Mount in vertical position.  
Weight: VFA: 4.0 to 4.8 oz (.11 to .14 kg); VFB: 7.2 to 8.8 oz (.20 to .25 kg). 

The SERIES VF Visi–Float® flowmeter bodies are cut and precision machined from solid, clear acrylic plastic blocks. This construction not only produces a handsome finished product, but permits complete visual inspection. As a result, the Visi-Float® flowmeters are especially popular for medical and laboratory equipment applications. SCALES ARE EASY TO READ — The front scale location and white background provides excellent visibility. The direct reading scales are hot stamped into the plastic and will not wear off. Mid–range calibration is established with a master flowmeter. Accuracy is ±5% of full scale for VFA models, ±3% for VFB. Scales average 2˝ long on the VFA models, 4˝ long on VFB. DURABLE AND ATTRACTIVE CONSTRUCTION — The machined acrylic bodies of the Visi–Float® flowmeters are practically unbreakable. Fabrication is backed by over 60 years of experience in acrylic instrument machining. The tapered bore is precision machined to a smooth surface that provides perfect visibility of the indicating float. The VFA and VFB models are available with either brass or stainless steel inlet and outlet connections and are tapped for 1/8˝ NPT thread. VFB models 85 and 86 have either 1/4˝ back or 3/8˝ end connections. All standard models employ Buna–N O-rings for leak proof operation and are available with either back or end connections for horizontal or vertical piping. Precision metering valves in brass or stainless steel are available for most VFA and VFB models. EASY INSTALLATION — All Visi–Float® flowmeters have metal mounting inserts on rear for panel mounting. They can also be supported directly by system piping. Service: Compatible gases &amp; liquids. Wetted Materials: Body: Acrylic plastic; O-ring: Buna-N (fluoroelastomer available); Metal parts: Brass standard, SS optional; Float: SS, black glass, aluminum, K monel depending on range. Temperature &amp; Pressure Limits: Without valve: 100 psig (6.9 bar) @ 150°F (65°C); 150 psig (10 bar) @ 100°F (38°C); With valve: 100 psig (6.9 bar) @ 120°F(48°C). Accuracy: VFA = 5% of FS; VFB = 3% of FS. Process Connection: 1/8˝ female NPT. VFB ranges 85 and 86 have 1/4˝ NPT back connections or 3/8˝ NPT end connections. These ranges not available with brass valves. Scale Length: VFA 2˝ typical length; VFB 4˝ typical length. Mounting Orientation: Mount in vertical position. Weight: VFA: 4.0 to 4.8 oz (.11 to .14 kg); VFB: 7.2 to 8.8 oz (.20 to .25 kg). <figure class="md-block-image"><img src="https://storage.googleapis.com/eezee-product-images/l30k5ms.jpeg" alt="" /><figcaption class="md-block-image-caption"></figcaption></figure><figure class="md-block-image"><img src="https://storage.googleapis.com/eezee-product-images/9svdwgy.jpeg" alt="" /><figcaption class="md-block-image-caption"></figcaption></figure>

The SERIES VF Visi–Float® flowmeter bodies are cut and precision machined from solid, clear acrylic plastic blocks. This construction not only produces a handsome finished product, but permits complete visual inspection. As a result, the Visi-Float® flowmeters are especially popular for medical and laboratory equipment applications.&nbsp;
SCALES ARE EASY TO READ — The front scale location and white background provides excellent visibility. The direct reading scales are hot stamped into the plastic and will not wear off. Mid–range calibration is established with a master flowmeter. Accuracy is ±5% of full scale for VFA models, ±3% for VFB. Scales average 2˝ long on the VFA models, 4˝ long on VFB.&nbsp;
DURABLE AND ATTRACTIVE CONSTRUCTION — The machined acrylic bodies of the Visi–Float® flowmeters are practically unbreakable. Fabrication is backed by over 60 years of experience in acrylic instrument machining. The tapered bore is precision machined to a smooth surface that provides perfect visibility of the indicating float. The VFA and VFB models are available with either brass or stainless steel inlet and outlet connections and are tapped for 1/8˝ NPT thread. VFB models 85 and 86 have either 1/4˝ back or 3/8˝ end connections. All standard models employ Buna–N O-rings for leak proof operation and are available with either back or end connections for horizontal or vertical piping. Precision metering valves in brass or stainless steel are available for most VFA and VFB models.&nbsp;&nbsp;&nbsp;
EASY INSTALLATION — All Visi–Float® flowmeters have metal mounting inserts on rear for panel mounting. They can also be supported directly by system piping.&nbsp;&nbsp;
Service: Compatible gases &amp; liquids. 
Wetted Materials: Body: Acrylic plastic; O-ring: Buna-N (fluoroelastomer available); Metal parts: Brass standard, SS optional; Float: SS, black glass, aluminum, K monel depending on range. 
Temperature &amp; Pressure Limits: Without valve: 100 psig (6.9 bar) @ 150°F (65°C); 150 psig (10 bar) @ 100°F (38°C); With valve: 100 psig (6.9 bar) @ 120°F(48°C). 
Accuracy: VFA = 5% of FS; VFB = 3% of FS. 
Process Connection: 1/8˝ female NPT. VFB ranges 85 and 86 have 1/4˝ NPT back connections or 3/8˝ NPT end connections. These ranges not available with brass valves. 
Scale Length: VFA 2˝ typical length; VFB 4˝ typical length. 
Mounting Orientation: Mount in vertical position. 
Weight: VFA: 4.0 to 4.8 oz (.11 to .14 kg); VFB: 7.2 to 8.8 oz (.20 to .25 kg).&nbsp;

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Alvin

buyerIntroduction

Dwyer Visi-float® Acrylic Flowmeters Vfb

dwyer visi-float® acrylic flowmeters vfb flow ph meters pengukur aliran meter dwyer/德威 visi-float®丙烯酸流量计vfb 流量和ph计 德威

dwyer-visi-float-acrylic-flowmeters-vfb

VFB-50-BV

VFB-51-BV

VFB-52-BV

VFB-53-BV

VFB-54-BV

VFB-55-BV

VFB-60-BV

VFB-65-BV

VFB-66-BV

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VFB-80-BV

VFB-81-BV

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VFB-83-BV

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VFB-85-BV

VFB-86-BV

VFB-90-BV

VFB-91-BV

VFB-50-SSV

VFB-51-SSV

VFB-52-SSV

VFB-53-SSV

VFB-54-SSV

VFB-55-SSV

VFB-60-SSV

VFB-65-SSV

VFB-66-SSV

VFB-67-SSV

VFB-68-SSV

VFB-69-SSV

VFB-80-SSV

VFB-81-SSV

VFB-82-SSV

VFB-83-SSV

VFB-84-SSV

VFB-85-SSV

VFB-86-SSV

VFB-90-SSV

VFB-91-SSV

Model

- Accuracy : ±3% FS.                                           

- Agency Approvals : Meets the technical requirements of EU Directive 2011/65/EU (RoHS II)   

- Agency Approvals : Meets the technical requirements of EU Directive 2011/65/EU (RoHS II). 

<h3 class="md-block-header-three">Dwyer Mark II Molded Plastic Manometer</h3>SPECIFICATIONS :INCLINED/VERTICAL - Accuracy : ±3% FS. - Temperature Limits : 140°F (60°C)- Pressure Limits : 10 psi (70 kPa)- Agency Approvals : Meets the technical requirements of EU Directive 2011/65/EU (RoHS II) INCLINED - Accuracy : ±3% FS - Temperature Limits : 150°F (65°C)- Pressure Limits : 15 psi (100 kPa)- Scale Length : Approx. 8-1/4˝ (21 cm)- Weight: 1.23 lb (558 g)- Agency Approvals : Meets the technical requirements of EU Directive 2011/65/EU (RoHS II).

<h3>Dwyer Mark II Molded Plastic Manometer</h3>
SPECIFICATIONS :
INCLINED/VERTICAL&nbsp;
- Accuracy : ±3% FS.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Temperature Limits : 140°F (60°C)
- Pressure Limits : 10 psi (70 kPa)
- Agency Approvals : Meets the technical requirements of EU Directive 2011/65/EU (RoHS II)&nbsp;&nbsp;&nbsp;
INCLINED&nbsp;
- Accuracy : ±3% FS&nbsp;&nbsp;
- Temperature Limits : 150°F (65°C)
- Pressure Limits : 15 psi (100 kPa)
- Scale Length : Approx. 8-1/4˝ (21 cm)
- Weight: 1.23 lb (558 g)
- Agency Approvals : Meets the technical requirements of EU Directive 2011/65/EU (RoHS II).&nbsp;

Data Sheet

Dwyer Mark Ii Molded Plastic Manometer

dwyer mark ii molded plastic manometer flow ph meters pengukur aliran plastik yang dibentuk meter dwyer/德威 ii模压塑料压力计 流量和ph计 德威

dwyer-mark-ii-molded-plastic-manometer

Mark II 25 

Mark II MM-80 

Mark II M-700PA

Model : 

Select the SERIES 2000 Magnehelic® Gauge for high accuracy--guaranteed within 2% of full scale--and for the wide choice of 81 models available to suit your needs precisely. Using Dwyer’s simple, frictionless Magnehelic® gauge movement, it quickly indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential. The design resists shock, vibration and over-pressures.

FEATURES/BENEFITS
Easy to read gauge through undistorted plastic face permits viewing from far away
Patented design provides quick response to pressure changes means no delay in assessing critical situations
Durable and rugged housing and high-quality components combine to provide long service life and minimized down-time

APPLICATIONS
Filter monitoring
Air velocity with Dwyer pitot tube
Blower vacuum monitoring
Fan pressure indication
Duct, room or building pressures
Clean room positive pressure indication

Service: Air and non-combustible, compatible gases (natural gas option available). Note: May be used with hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi.
Wetted Materials: Consult factory


Housing: Die cast aluminum case and bezel, with acrylic  cover, Exterior finish is coated gray to withstand 168 hour salt spray  corrosion test. 
Accuracy: ±2% (-HA model ±1) of FS (±3% (-HA ±1.5%) on -0,  -100PA, -125PA, -10MM and ±4% (-HA ±2%) on -00, -60PA, -6MM ranges),  throughout range at 70°F (21.1°C). 
Pressure Limits: -20 in Hg. to 15 psig.† (-0.677 bar to 1.034 bar); MP option; 35 psig (2.41 bar), HP option; 80 psig (5.52 bar). 


Enclosure Rating: IP67. 
Overpressure: Relief plug opens at approximately 25 psig (1.72 bar), standard gauges only. See Overpressure Protection note on Catalog page. 


Temperature Limits: 20 to 140°F (-6.67 to 60°C). -20°F (-28°C) with low temperature option. 
Size: 4" (101.6 mm) diameter dial face. 


Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations. 
Process Connections: 1/8" female NPT duplicate high and low pressure taps - one pair side and one pair back. Weight: 1 lb 2 oz (510 g); MP & HP 2 lb 2 oz (963 g). 


Standard Accessories: Two 1/8" NPT plugs for duplicate pressure taps,  two 1/8" pipe thread to rubber tubing adapters and three flush mounting  adapters with screws. (Mounting and snap ring retainer substituted for  three adapters in MP & HP gauge accessories.) 


Agency Approval: Meets the technical requirements of EU Directive 2011/65/EU (RoHS II). 
Note: -SP models not RoHS approved. 

Select the SERIES 2000 Magnehelic® Gauge for high accuracy--guaranteed within 2% of full scale--and for the wide choice of 81 models available to suit your needs precisely. Using Dwyer’s simple, frictionless Magnehelic® gauge movement, it quickly indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential. The design resists shock, vibration and over-pressures. FEATURES/BENEFITS Easy to read gauge through undistorted plastic face permits viewing from far away Patented design provides quick response to pressure changes means no delay in assessing critical situations Durable and rugged housing and high-quality components combine to provide long service life and minimized down-timeAPPLICATIONS Filter monitoring Air velocity with Dwyer pitot tube Blower vacuum monitoring Fan pressure indication Duct, room or building pressures Clean room positive pressure indication Service: Air and non-combustible, compatible gases (natural gas option available). Note: May be used with hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi. Wetted Materials: Consult factory Housing: Die cast aluminum case and bezel, with acrylic cover, Exterior finish is coated gray to withstand 168 hour salt spray corrosion test. Accuracy: ±2% (-HA model ±1) of FS (±3% (-HA ±1.5%) on -0, -100PA, -125PA, -10MM and ±4% (-HA ±2%) on -00, -60PA, -6MM ranges), throughout range at 70°F (21.1°C). Pressure Limits: -20 in Hg. to 15 psig.† (-0.677 bar to 1.034 bar); MP option; 35 psig (2.41 bar), HP option; 80 psig (5.52 bar). Enclosure Rating: IP67. Overpressure: Relief plug opens at approximately 25 psig (1.72 bar), standard gauges only. See Overpressure Protection note on Catalog page. Temperature Limits: 20 to 140°F (-6.67 to 60°C). -20°F (-28°C) with low temperature option. Size: 4&quot; (101.6 mm) diameter dial face. Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations. Process Connections: 1/8&quot; female NPT duplicate high and low pressure taps - one pair side and one pair back. Weight: 1 lb 2 oz (510 g); MP &amp; HP 2 lb 2 oz (963 g). Standard Accessories: Two 1/8&quot; NPT plugs for duplicate pressure taps, two 1/8&quot; pipe thread to rubber tubing adapters and three flush mounting adapters with screws. (Mounting and snap ring retainer substituted for three adapters in MP &amp; HP gauge accessories.) Agency Approval: Meets the technical requirements of EU Directive 2011/65/EU (RoHS II). Note: -SP models not RoHS approved. <figure class="md-block-image"><img src="https://storage.googleapis.com/eezee-product-images/u2wgbdl.jpeg" alt="" /><figcaption class="md-block-image-caption"></figcaption></figure>

Select the SERIES 2000 Magnehelic® Gauge for high accuracy--guaranteed within 2% of full scale--and for the wide choice of 81 models available to suit your needs precisely. Using Dwyer’s simple, frictionless Magnehelic® gauge movement, it quickly indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential. The design resists shock, vibration and over-pressures. 
 
FEATURES/BENEFITS 
Easy to read gauge through undistorted plastic face permits viewing from far away 
Patented design provides quick response to pressure changes means no delay in assessing critical situations 
Durable and rugged housing and high-quality components combine to provide long service life and minimized down-time
APPLICATIONS 
Filter monitoring 
Air velocity with Dwyer pitot tube 
Blower vacuum monitoring 
Fan pressure indication 
Duct, room or building pressures 
Clean room positive pressure indication 
 
Service: Air and non-combustible, compatible gases (natural gas option available). Note: May be used with hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi. 
Wetted Materials: Consult factory
 
Housing: Die cast aluminum case and bezel, with acrylic cover, Exterior finish is coated gray to withstand 168 hour salt spray corrosion test. 
Accuracy: ±2% (-HA model ±1) of FS (±3% (-HA ±1.5%) on -0, -100PA, -125PA, -10MM and ±4% (-HA ±2%) on -00, -60PA, -6MM ranges), throughout range at 70°F (21.1°C). 
Pressure Limits: -20 in Hg. to 15 psig.† (-0.677 bar to 1.034 bar); MP option; 35 psig (2.41 bar), HP option; 80 psig (5.52 bar).&nbsp;
 
Enclosure Rating: IP67. 
Overpressure: Relief plug opens at approximately 25 psig (1.72 bar), standard gauges only. See Overpressure Protection note on Catalog page.&nbsp;
 
Temperature Limits: 20 to 140°F (-6.67 to 60°C). -20°F (-28°C) with low temperature option. 
Size: 4" (101.6 mm) diameter dial face.&nbsp;
 
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations. 
Process Connections: 1/8" female NPT duplicate high and low pressure taps - one pair side and one pair back. Weight: 1 lb 2 oz (510 g); MP &amp; HP 2 lb 2 oz (963 g).&nbsp;
 
Standard Accessories: Two 1/8" NPT plugs for duplicate pressure taps, two 1/8" pipe thread to rubber tubing adapters and three flush mounting adapters with screws. (Mounting and snap ring retainer substituted for three adapters in MP &amp; HP gauge accessories.)&nbsp;
 
Agency Approval: Meets the technical requirements of EU Directive 2011/65/EU (RoHS II). 
Note: -SP models not RoHS approved.&nbsp;

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Dwyer Magnehelic® Differential Pressure Gauges 2000

dwyer magnehelic® differential pressure gauges 2000 pengukur tekanan diferensial weight, force berat, gaya tolok pembezaan alat daya dwyer/德威 magnehelic®压差表2000 重量，力和压力计 德威

dwyer-magnehelic-differential-pressure-gauges-2000

2000-0

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2000-6MM

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2000-25MM

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2000-150MM

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2000-15CM

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2000-80CM

2000-100CM

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2210

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2000-60PA

2000-125PA

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2000-25KPA

2000-30KPA

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2302

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2310

2320

2330

2300-60PA

2300-100PA

2300-120PA

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2300-300PA

2300-500PA

2300-1000PA

The SERIES RM Rate-Master® flowmeter line of direct reading precision flowmeters incorporates many unique user features at moderate cost. These low cost flowmeters are ideal for general use.

EASY TO READ DESIGN — The direct reading scales eliminate troublesome conversions. The scales are brushed aluminum, coated with epoxy and the graduations are on both sides of the indicating tube. Special integral flow guides stabilize the float throughout the range to keep it from hunting or wandering in the bore. The float is highly visible against a white background.

CONSTRUCTION ASSURES ACCURACY — All Rate-Master® flowmeter bodies are injection molded of tough, clear, shatter-proof polycarbonate plastic around a precision tapered pin. The result is accurate and repeatable readings. The single piece plastic body is mounted to a stainless steel back bone into which pipe thread inserts are welded to absorb piping torque. Precision metering valves of brass or stainless steel (specify BV or SSV on order) are available as an optional extra and permit precise flow adjustments. For vacuum applications, Model RMA units are available with top mounted valves (specify TMV). The small Series RMA models are accurate within ±4% of full-scale reading; Series RMB within ±3%; large Series RMC within ±2%.

INSTALLATION IS SIMPLE — The Rate-Master® flowmeter can be neatly panel mounted to keep flow tube centers in the same plane as the panel surface or surface mounted on the panel by means of tapped holes in the backbone. When through-panel mounted, the bezel automatically positions the instrument at the correct depth in the panel cutout. Surface mounted units can also be held in place by the piping. All mounting hardware plus installation and operating instructions are included.

EASY-TO-INTERCHANGE BODIES — Within a given Series Rate-Master® flowmeter bodies can be instantly interchanged. Simply “unplug” the body from backbone and replace it with another. O-rings provide a tight seal on inlet and outlet. Piping remains undisturbed. Interchangeability is useful where different scale ranges are sometimes required at the same location in the laboratory or plant.

CLEANING IS EASY — To release the plastic flowmeter body from the stainless steel backbone, just remove four screws. Pipe thread flow connections remain undisturbed. Remove the slide cover and the plug ball stop, clean the flow tube with soap and water and reassemble. It’s that simple.

SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: Body: Polycarbonate; O-ring: Neoprene and Buna-N; Metal parts: SS (except for optional brass valve); Float: SS, black glass, aluminum, K monel, tungsten carbide depending on range.
Temperature Limit: 130°F (54°C).
Pressure Limit: 100 psi (6.9 bar).
Accuracy: RMA: 4%; RMB: 3%; RMC: 2% of FS.
Process Connection: RMA: 1/8˝; RMB: 1/4˝; RMC: 1/2˝ female NPT.
Weight: RMA: 4 oz (113.4 g); RMB: 13 oz (368.5 g); RMC: 39 oz (1105.6 g).

CAUTION: Dwyer® Rate-Master® flowmeters are designed to provide satisfactory long term service when used with air, water, or other compatible media. Refer to factory for information on questionable gases or liquids. Caustic solutions, anti-freeze (ethylene glycol) and aromatic solvents should definitely not be used.

The SERIES RM Rate-Master® flowmeter line of direct reading precision flowmeters incorporates many unique user features at moderate cost. These low cost flowmeters are ideal for general use.EASY TO READ DESIGN — The direct reading scales eliminate troublesome conversions. The scales are brushed aluminum, coated with epoxy and the graduations are on both sides of the indicating tube. Special integral flow guides stabilize the float throughout the range to keep it from hunting or wandering in the bore. The float is highly visible against a white background.CONSTRUCTION ASSURES ACCURACY — All Rate-Master® flowmeter bodies are injection molded of tough, clear, shatter-proof polycarbonate plastic around a precision tapered pin. The result is accurate and repeatable readings. The single piece plastic body is mounted to a stainless steel back bone into which pipe thread inserts are welded to absorb piping torque. Precision metering valves of brass or stainless steel (specify BV or SSV on order) are available as an optional extra and permit precise flow adjustments. For vacuum applications, Model RMA units are available with top mounted valves (specify TMV). The small Series RMA models are accurate within ±4% of full-scale reading; Series RMB within ±3%; large Series RMC within ±2%.INSTALLATION IS SIMPLE — The Rate-Master® flowmeter can be neatly panel mounted to keep flow tube centers in the same plane as the panel surface or surface mounted on the panel by means of tapped holes in the backbone. When through-panel mounted, the bezel automatically positions the instrument at the correct depth in the panel cutout. Surface mounted units can also be held in place by the piping. All mounting hardware plus installation and operating instructions are included.EASY-TO-INTERCHANGE BODIES — Within a given Series Rate-Master® flowmeter bodies can be instantly interchanged. Simply “unplug” the body from backbone and replace it with another. O-rings provide a tight seal on inlet and outlet. Piping remains undisturbed. Interchangeability is useful where different scale ranges are sometimes required at the same location in the laboratory or plant.CLEANING IS EASY — To release the plastic flowmeter body from the stainless steel backbone, just remove four screws. Pipe thread flow connections remain undisturbed. Remove the slide cover and the plug ball stop, clean the flow tube with soap and water and reassemble. It’s that simple.SPECIFICATIONS Service: Compatible gases and liquids. Wetted Materials: Body: Polycarbonate; O-ring: Neoprene and Buna-N; Metal parts: SS (except for optional brass valve); Float: SS, black glass, aluminum, K monel, tungsten carbide depending on range. Temperature Limit: 130°F (54°C). Pressure Limit: 100 psi (6.9 bar). Accuracy: RMA: 4%; RMB: 3%; RMC: 2% of FS. Process Connection: RMA: 1/8˝; RMB: 1/4˝; RMC: 1/2˝ female NPT. Weight: RMA: 4 oz (113.4 g); RMB: 13 oz (368.5 g); RMC: 39 oz (1105.6 g). CAUTION: Dwyer® Rate-Master® flowmeters are designed to provide satisfactory long term service when used with air, water, or other compatible media. Refer to factory for information on questionable gases or liquids. Caustic solutions, anti-freeze (ethylene glycol) and aromatic solvents should definitely not be used.<figure class="md-block-image"><img src="https://storage.googleapis.com/eezee-product-images/q7js2dc.jpeg" alt="" /><figcaption class="md-block-image-caption"></figcaption></figure><figure class="md-block-image"><img src="https://storage.googleapis.com/eezee-product-images/knxlu36.jpeg" alt="" /><figcaption class="md-block-image-caption"></figcaption></figure>

The SERIES RM Rate-Master® flowmeter line of direct reading precision flowmeters incorporates many unique user features at moderate cost. These low cost flowmeters are ideal for general use.
EASY TO READ DESIGN — The direct reading scales eliminate troublesome conversions. The scales are brushed aluminum, coated with epoxy and the graduations are on both sides of the indicating tube. Special integral flow guides stabilize the float throughout the range to keep it from hunting or wandering in the bore. The float is highly visible against a white background.
CONSTRUCTION ASSURES ACCURACY — All Rate-Master® flowmeter bodies are injection molded of tough, clear, shatter-proof polycarbonate plastic around a precision tapered pin. The result is accurate and repeatable readings. The single piece plastic body is mounted to a stainless steel back bone into which pipe thread inserts are welded to absorb piping torque. Precision metering valves of brass or stainless steel (specify BV or SSV on order) are available as an optional extra and permit precise flow adjustments. For vacuum applications, Model RMA units are available with top mounted valves (specify TMV). The small Series RMA models are accurate within ±4% of full-scale reading; Series RMB within ±3%; large Series RMC within ±2%.
INSTALLATION IS SIMPLE — The Rate-Master® flowmeter can be neatly panel mounted to keep flow tube centers in the same plane as the panel surface or surface mounted on the panel by means of tapped holes in the backbone. When through-panel mounted, the bezel automatically positions the instrument at the correct depth in the panel cutout. Surface mounted units can also be held in place by the piping. All mounting hardware plus installation and operating instructions are included.
EASY-TO-INTERCHANGE BODIES — Within a given Series Rate-Master® flowmeter bodies can be instantly interchanged. Simply “unplug” the body from backbone and replace it with another. O-rings provide a tight seal on inlet and outlet. Piping remains undisturbed. Interchangeability is useful where different scale ranges are sometimes required at the same location in the laboratory or plant.
CLEANING IS EASY — To release the plastic flowmeter body from the stainless steel backbone, just remove four screws. Pipe thread flow connections remain undisturbed. Remove the slide cover and the plug ball stop, clean the flow tube with soap and water and reassemble. It’s that simple.
SPECIFICATIONS 
Service: Compatible gases and liquids. 
Wetted Materials: Body: Polycarbonate; O-ring: Neoprene and Buna-N; Metal parts: SS (except for optional brass valve); Float: SS, black glass, aluminum, K monel, tungsten carbide depending on range. 
Temperature Limit: 130°F (54°C). 
Pressure Limit: 100 psi (6.9 bar). 
Accuracy: RMA: 4%; RMB: 3%; RMC: 2% of FS. 
Process Connection: RMA: 1/8˝; RMB: 1/4˝; RMC: 1/2˝ female NPT. 
Weight: RMA: 4 oz (113.4 g); RMB: 13 oz (368.5 g); RMC: 39 oz (1105.6 g). 
 
CAUTION: Dwyer® Rate-Master® flowmeters are designed to provide satisfactory long term service when used with air, water, or other compatible media. Refer to factory for information on questionable gases or liquids. Caustic solutions, anti-freeze (ethylene glycol) and aromatic solvents should definitely not be used.

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Dwyer RATE-MASTER® Polycarbonate Flowmeters Rmc

dwyer rate-master® polycarbonate flowmeters rmc pengukur aliran polikarbonat flow ph meters meter dwyer/德威 聚碳酸酯流量计 流量和ph计 德威