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Check Valves Series : VC35
- Index
- Features & Benefits
- Operating Parameters
- Material of Constructions
- Dimensions
- Ordering Information
Check Valve
Series : VC35
DAWSONS-TECH® Check Valve Series : VC51 is a very compact, robust and heavy duty designed for unidirectional flow control of fluids and gases for high pressure (UPTO 6000 PSIG) used in Instrumentation system.
It is used in various applications where high integrity leak rates and re-sealing capabilities are desired.
Features / Benefits :
- Back stopped poppet design to minimum spring stress.
- ‘O’ Ring bonded poppet 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.
- 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) | A/F (Inch) | Dawsons-Tech Part No. | ||
| Type | Size | Orifice (mm) | Cv | |||
| Male NPT | 1/4 | 4.7 | 0.75 | 55.0 | 11/16 | VC35-MM4N |
| 3/8 | 7.8 | 2.13 | 60.0 | 1 | VC35-MM6N | |
| 1/2 | 7.8 | 2.13 | 69.2 | 1 | VC35-MM8N | |
| 3/4 | 15.0 | 6.0 | 83.5 | 1-5/8 | VC35-MM12N | |
| 1 | 15.0 | 6.0 | 93.3 | 1-5/8 | VC35-MM16N | |
| Female NPT | 1/4 | 4.7 | 0.75 | 54.1 | 11/16 | VC35-FF4N |
| 3/8 | 7.8 | 2.13 | 64.8 | 1 | VC35-FF6N | |
| 1/2 | 7.8 | 2.13 | 83.6 | 1-1/16 | VC35-FF8N | |
| 3/4 | 15.0 | 6.0 | 90.1 | 1-5/8 | VC35-FF12N | |
| 1 | 15.0 | 6.0 | 97.3 | 1-5/8 | VC35-FF16N | |
| Fractional Tube Fitting | 1/4 | 4.7 | 0.75 | 61.8 | 11/16 | VC35-TT4 |
| 3/8 | 7.8 | 2.13 | 70.0 | 1 | VC35-TT6 | |
| 1/2 | 7.8 | 2.13 | 75.3 | 1 | VC35-TT8 | |
| 3/4 | 15.0 | 6.0 | 89.5 | 1-5/8 | VC35-TT12 | |
| 1 | 15.0 | 6.0 | 98.5 | 1-5/8 | VC35-TT16 | |
| Metric Tube Fitting | 6 mm | 4.7 | 0.75 | 61.8 | 11/16 | VC35-TT6M |
| 8 mm | 6.4 | 2.02 | 68.5 | 1 | VC35-TT8M | |
| 10 mm | 7.8 | 2.13 | 71.1 | 1 | VC35-TT10M | |
| 12 mm | 7.8 | 2.13 | 75.3 | 1 | VC35-TT12M | |
| 22 mm | 15.0 | 6.0 | 88.5 | 1-5/8 | VC35-TT22M | |
| 25 mm | 15.0 | 6.0 | 98.5 | 1-5/8 | VC35-TT25M | |