Check Valves Series : VC31

Check Valves Series :
VC31

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Check Valves

check valve series VC31

Series : VC31

DAWSONS-TECH® Check Valve Series : VC31 is a very compact and robust in construction and designed for unidirectional flow control of fluids and gases for medium pressure (UPTO 6000 PSIG) used in Instrumentation systems.

Features / Benefits :

Back stopped poppet design to minimum spring stress.
Elastomeric seat provides leak tight seal.
Provides large flow, minimum of chatter and fluctuation.
Variable cracking pressure : 1/3, 1, 5, 10, 25, 50 and 100 PSIG.
Suitable for Vacuum and medium-pressure Fluid/Gas applications.
Available in Material SS316L.
Heat code traceability to certified material test report.
Every Valve is Pressure tested.

Product Range & Operating Parameters :

Pressure Rating : UPTO 6000 PSIG (207 Bar) at CWP
Temperature Rating : UPTO 198°C with Fluorocarbon ‘O’ Ring
End Connections
- Fractional : 1/4″ to 1” Tube OD
- Metric : 6mm to 25mm
- Tube OD Pipe Thread : 1/4″ to 1” Male / Female BSP / BSPT / NPT
- Metal Gasket Face Seal : 1/4″ to 1”
- ‘O’ Ring Face Seal : 1/4″ to 1”

Applications :

Gas
Liquid
Fluid handling.

Type Test Approvals :

The design of DAWSONS-TECH® Check Valve Series : VC31 has been tested for Hydrostatic Proof and Burst Test in accordance with MSS SP-99-2016a Clause 5.5 & 5.6.

Testing :

Standard Test : Each Valve is pressure tested with Nitrogen at 1000 PSIG (69 Bar) for leakage at the seat and packing.
Optional Hydrostatic Test : This test is performed with De-ionized water at 1.5 times the working pressure.

Certification :

The certificate to 3.1 acc. to EN10204 for Valve Body Material and pressure test will be provided on request.

Material of Construction :

Sr. No.	Description	Material
1	Inlet Body	SS316
2	‘O’ Ring	Fluorocarbon
3	Poppet	SS316
4	Spring	Stainless Steel
5	Outlet Body	SS316
6	‘O’ Ring	Fluorocarbon

End Connection		Flow Data		A (mm)	B (mm)	A/F1 (Inch)	A/F2 (Inch)	Dawsons-Tech Part No.
Type	Size-T	Orifice (mm)	Cv	A (mm)	B (mm)	A/F1 (Inch)	A/F2 (Inch)	Dawsons-Tech Part No.
Male NPT	1/4	4.7	0.75	55.0	26.4	3/4	–	VC31-MM4N
	3/8	9.1	2.26	75.2	46.2	1	–	VC31-MM6N
	1/2	11.5	3.53.	90.4	52.4	1-1/4	–	VC31-MM8N
	3/4	15.1	6.01	103.9	66.0	1-3/8	–	VC31-MM12N
	1	16.7	6.56	114.8	66.8	1-5/8	–	VC31-MM16N
Female NPT	1/4	4.7	0.75	61.0	–	3/4	–	VC31-FF4N
	3/8	9.1	2.26	77.0	–	1	–	VC31-FF6N
	1/2	11.5	3.53	90.4	–	1-1/4	–	VC31-FF8N
	3/4	15.1	6.01	103.9	–	1-3/8	–	VC31-FF12N
	1	16.7	6.56	122.9	–	1-5/8	–	VC31-FF16N
Fractional Tube Fitting	1/4	4.7	0.75	61.8	26.3	3/4	9/16	VC31-TT4
	3/8	7.1	2.09	83.1	44.1	1	11/16	VC31-TT6
	1/2	10.7	3.53	103.6	59.3	1-1/4	7/8	VC31-TT8
	3/4	15.1	6.01	110.2	65.7	1-3/8	1-1/8	VC31-TT12
	1	16.7	6.56	117.6	64.6	1-5/8	1-1/2	VC31-TT16
Metric Tube Fitting	6 mm	4.7	0.75	61.7	26.3	3/4	9/16	VC31-TT6M
	8 mm	6.4	2.02	84.6	47.0	1	5/8	VC31-TT8M
	10 mm	7.9	2.16	85.1	46.1	1	¾	VC31-TT10M
	12 mm	9.5	2.93	103.1	59.0	1-1/4	7/8	VC31-TT12M
	22 mm	15.1	6.01	109.2	73.0	1-3/8	1-1/4	VC31-TT22M
	25 mm	16.7	6.56	120.4	67.5	1-5/8	1-1/2	VC31-TT25M

Dimensions are for reference only and are subject to change.

High Pressure, Cost Effective & High Performance Components for CNG Vehicles & Fueling Stations.

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Monday – Saturday:
09⁰⁰– 06⁰⁰

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Contact Info

Registered Office and Manufacturing Plant:

DAWSONS-TECH COMPONENTS LLP
Unit No. DD – 6 & 7, Khan Real Industrial Estate, N. H. 08, Pelhar, Vasai Phata, Vasai East, Dist. Palghar – 401208, Maharashtra, INDIA.

Email : info@dawsonstech.com

Contact No: + +91 22 45694992