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Flow Meter "Dwyer" Model VFA-4-SSV
[VFA-4-SSV]
$88.89

 

 

 

Series VFA & VFB

Visi-Float® Flowmeters

Used to Indicate or Manually Control Air or Water Flow

 

The 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.

 

SPECIFICATIONS

Service: Compatible gases & liquids.

 

Wetted Materials:

Body: Acrylic plastic;

O-ring: Buna-N (fluoroelastomer available);

Metal parts: Brass standard, stainless steel optional;

Float: Stainless steel, black glass, aluminum, K monel depending on range.

 

Temperature & Pressure Limits:

Without Valve: 100 psig (6.9 bar) @ 150F (65C); 150 psig (10 bar) @100F (38C);

With Valve: 100 psig (6.9 bar) @120F (48C).

 

Accuracy: VFA = 5% of full scale; VFB = 3% of full scale.

 

Process Connection: 1/8” female NPT. VFB ranges 85 and 86 have ¼” 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).

 

How to Order

Series – Range No. (“X”)-Valve-Option

Example: VFA-9-BV

Series VFA with 20-200 SCFH Air Range & Brass Valve

 

VFA Series

Model

Description

VFA-X

Standard VFA

VFA-X-SS

VFA with Stainless Metal Wetted Parts

VFA-X-BV

VFA with Brass Valve

VFA-X-SSV

VFA with Stainless Steel Valve

VFA-X-EC

VFA with End Connections

VFA-X-EC-SS

VFA with End Connections and Stainless Steel Metal Wetted Parts

OPTIONS & ACCESSORIES

- PF, Red ABS Plastic Pointer Flag

- VIT, Fluoroelastomer O-rings

RKA, Pressure Regulator

 

 

This product was added to our catalog on Monday 26 December, 2011.
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Tel : 086-322-6876 ,02-421-9927 ,Fax : 02-809-2591 E-mail : pongthorn@nano-machinery.com
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