Our PRODUCTS -- CFW Automation Sendirian Berhad

DWYER Flowmeter - Series VFA & VFB ( Visi-Float® FLowmeters )

Used to indicate or Monually Control Air or Water Flow

OEM Specials
Special flowmeter designs can be supplied to meet a wide range of requirements and specific applications. These include: on-off plunger and push - to - test valves, special gas or fluid calibration, special ranges, scales, name brand or other identification. Pointer flags can be furnished for instant visual references. For specific information, please supply an outline of your requirements.

How to Order

Series - Range No. ("X") - Valve - Option
Example: VFA -9-BV
Series VFA with 20-200SCFH Air Range & Brass Valve

Specifications

Service:	Compatible gases and liquids
Wetted Materials:	Body: Acrylic plastic; O-ring - Buna-N (fluoeastomer available); Metal parts: Brass Standard, stainless steel optional; Float: Stainless Steel, black glass, aluminum, K monel depending on range.
Temperature Limit:	Without Valve: 100psig (6.9bar) @ 150°F (65°C); 150 psig (10bar) @ 100°F (38°C); With Valve: 100 psig (6.9bar) @ 150°F (65°C); 150 psig (10bar) @ 100F (38°C); With Valve: 100 psig (6.9bar) @ 120F (48°C)
Pressure Limit:	100 psi (6.9bar)
Accuracy:	VFA = 5% of full scale; VFB = 3% of full scale
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 .14kg); VFB: 72 to 8.8 oz (.20 to .25kg)

VFA Series
Model	Description
VFA-X VFA-X-SS VFA-V-BV VFA-V-SSV VFA-V-EC VFA-V-EC-SS	VFA with Stainless Metal Wetted Parts VFA with Brass Valve VFA with Stainless Steel Valve VFA with End Connections VFA with End Connections and Stainless Steel Metal Wetted Parts
Option & Accesories PF, Red ABS Plastic Pointer Flag VIT, Fluoroelastomer O-rings RKA, Pressure Regulator

VFB Series
Model	Description
VFB-X VFB-X-SS VFB-V-BV VFB-V-SSV VFB-V-EC VFB-V-EC-SS	VFB with Stainless Metal Wetted Parts VFB with Brass Valve VFB with Stainless Steel Valve VFB with End Connections VFB with End Connections and Stainless Steel Metal Wetted Parts
Option & Accesories PF, Red ABS Plastic Pointer Flag VIT, Fluoroelastomer O-rings RK - VFB, Pressure Regulator

Popular Ranges
Model VFA -- 2"scale
Range No.	Range SCFH Air	Range No.	Range LPM Water
1 2 3 4 5 6 7 8 9	.1-1 .2-5 .6-5 1-10 2-20 4-30 5-50 10-100 20-200	21 22 23 24 25 26 27	.06-0.5 15-1 .6-5 1-10 3-25 6-50 10-100
	CC Water per min.		Gal Water per hour
32 33 34	6-50 10-100 20-200	41 42 43 44	.6-5 2-10 3-20 8-40

Popular Ranges
Model VFB -- 4"scale
Range No.	Range SCFH Air	Range No.	Range LPM Water
50 91+ 91+ 52 53+ 54+ 55+	.3-3 1-10 2-20 4-40 10-100 10-150 20-200	65 66 67 68 69	.2-4 1-10 1-20 3-30 4-40
			CC/Min. Water
		82	2-30
	SCFM Air		GPH Water
90	.3-3	80+ 83+ 84 81	.5-12 1-20 6-40 6-60
	CC / min. Air
60	100-1000
			GPM Water
		85* 86*	.2-2 .6-5

• + For dual range models in English and Metric add "D" to end of Range No.
• * Ranges 85 and 86 consult Factoru. Not available with brass valve