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DwyerInline Flowmeters for Air & Compressed Gases

Dwyer VFA-4-BV Inline Acrylic Variable Area Flowmeter for Air &

The DWYER Flowmeter (SKU VFA-4-BV, MPN VFA-4-BV) is an inline acrylic variable-area flowmeter for air and compressed gases, with a range of 1-10 Scfh Air. It features a scale display, Buna-N O-ring and seal…

SKU 3G-OTH-91229

Also listed as: VFA4BV · VFA 4 BV

Brand
Dwyer
Item
VFA-4-BV Inline Acrylic Variable Area Flowmeter for Air &
Part Number
VFA-4-BV
Category
Inline Flowmeters for Air & Compressed Gases
Available to Order
Also known as:VFA-4-BVDwyer
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Worldwide Shipping
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Technical specs
1-Day Quote
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Dwyer
Manufacturer Part Number
VFA-4-BV
Type
Scale, Variable Area, Inline, Vertical, NPT
Accuracy
+/-5%
Display Type
Scale
Seal Material
Buna-N
O-Ring Material
Buna-N
Range 1-10 Scfh Air
Acrylic Flowmeter
Mounting Orientation
Vertical
Includes Pressure Guage
No
Includes Flow Rate Adjustment Knob
Yes

Technical Documents

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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DWYER Flowmeter (SKU VFA-4-BV, MPN VFA-4-BV) is an inline acrylic variable-area flowmeter for air and compressed gases, with a range of 1-10 Scfh Air. It features a scale display, Buna-N O-ring and seal materials, and includes a flow rate adjustment knob. The unit is designed for vertical mounting, has an accuracy of +/-5%, and uses NPT connections.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the DWYER VFA-4-BV flowmeter used for?

The DWYER VFA-4-BV is an inline acrylic variable-area flowmeter designed to measure and adjust the flow rate of air and compressed gases. It is commonly used in industrial pneumatic systems, HVAC applications, and gas monitoring where a scale display and manual flow adjustment are required.

What are the specifications of the DWYER VFA-4-BV flowmeter?

The DWYER VFA-4-BV flowmeter has a range of 1-10 Scfh Air, accuracy of +/-5%, and a scale display. It features Buna-N O-ring and seal materials, vertical mounting orientation, NPT connections, and includes a flow rate adjustment knob. It does not include a pressure gauge.

Where to buy the DWYER VFA-4-BV flowmeter worldwide?

The DWYER VFA-4-BV flowmeter is available to order through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the DWYER VFA-4-BV flowmeter?

Install the DWYER VFA-4-BV flowmeter in a vertical orientation with the flow arrow pointing upward. Use NPT fittings and ensure the Buna-N seals are properly seated. Avoid overtightening to prevent cracking the acrylic body. Refer to the manufacturer's manual for torque specifications.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management
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Dwyer Products

3G Electric supplies Dwyer inline flowmeters for air & compressed gases. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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