Instrumentation Check Valve are precision-engineered devices designed to allow fluid or gas flow in one direction while preventing reverse flow. These valves are critical in protecting sensitive instrumentation and system components from potential damage caused by backflow or reverse pressure.
Instrumentation Check valve operate automatically based on pressure differentials, requiring no external actuation. They are commonly used in applications involving gases, liquids, or aggressive chemicals, and are constructed using materials such as stainless steel, Hastelloy, or other corrosion-resistant alloys to ensure reliability and durability in demanding environments.
Instrumentation Check Valve is trusted across various industries for its precision, durability, and reliability. Explore its wide-ranging applications below:
Control of hydrocarbon fluids, sampling, and pressure measurement systems.
Flow regulation in filtration, sampling, and chemical dosing systems.
Steam systems, pressure monitoring, and boiler instrumentation.
Flow control in chemical dosing, mixing systems, and sampling lines.
Sterile fluid control and pressure monitoring in cleanroom environments.
Control of slurry, reagent dosing, and pressure monitoring systems.
Control of coolant flow and monitoring of system pressures.
| No. | Component | Material |
|---|---|---|
| 1 | Inlet Body | Stainless Steel 316 |
| 2 | Seal Ring | Viton |
| 3 | Poppet | Stainless Steel 316 |
| 4 | Spring | Stainless Steel |
| 5 | Outlet Body | Stainless Steel 316 |
| Size | Maximum Flow Coefficient (Cv) | Nominal Cracking Pressure psig (bar) | Downstream Pressure at 70G (20C) psig (bar) |
|---|---|---|---|
| 1/8" | 0.10 | 1, 10, 25 ( 0.07, 0.69, 1.8) | 1000 (68.9) |
| 1/4" | 0.47 | 1, 10, 25 ( 0.07, 0.69, 1.8) | 1000 (68.9) |
| 3/8" | 1.47 | 1, 10, 25 ( 0.07, 0.69, 1.8) | 200 (13.7) |
| 1/2" | 1.68 | 1, 10, 25 ( 0.07, 0.69, 1.8) | 200 (13.7) |
| 3/4", 1" | 4.48 | 1, 10, 25 ( 0.07, 0.69, 1.8) | 200 (13.7) |
For cracking pressure of 25 psig (1.8 bar), downstream pressure is 3000 psig (206 bar)
| O-Ring Material | Temperature Rating F(C) |
|---|---|
| Buna - N | -10 to 250 (-23 to 121) |
| EPDM | -70 to 250 (-55 to 121) |
| Viton (Fluorocarbon) | -10 to 350 (-23 to 191) |
| END CONNECTOR | DIMENSION (MM) | PART NO. | INLET | OUTLET | A | B | H | G |
|---|---|---|---|---|---|---|
| 1/8" ODT | 1/8" ODT | 57.20 | 26.6 | 15.88 | 11.11 | YCV01-TT2 |
| 1/4" ODT | 1/4" ODT | 62.20 | 26.6 | 15.88 | 14.28 | YCV01-TT4 |
| 3/8" ODT | 3/8" ODT | 76.20 | 37.6 | 22.2 | 17.46 | YCV01-TT6 |
| 1/2" ODT | 1/2" ODT | 86.60 | 42.9 | 25.4 | 22.22 | YCV01-TT8 |
| 5/8" ODT | 5/8" ODT | 91.70 | 48.0 | 28.50 | 28.57 | YCV01-TT10 |
| 3/4" ODT | 3/4" ODT | 99.80 | 56.1 | 31.80 | 38.10 | YCV01-TT12 |
| 1" ODT | 1" ODT | 111.20 | 58.4 | 38.10 | 14.0 | YCV01-TT16 |
| 6mm ODT | 6mm ODT | 62.2 | 26.6 | 16.0 | 18.0 | YCV01-TT6M |
| 10mm ODT | 10mm ODT | 76.2 | 37.6 | 22.0 | 22.0 | YCV01-TT10M |
| 12mm ODT | 12mm ODT | 86.2 | 42.9 | 25.0 | 25.0 | YCV01-TT12M |
| 16mm ODT | 16mm ODT | 91.7 | 48 | 28.0 | YCV01-TT16M | |
| 1/8" Female NPT | 1/8" Female NPT | 50.00 | - | 15.88 | - | YCV01-FF2N |
| 1/4" Female NPT | 1/4" Female NPT | 57.10 | - | 19.05 | - | YCV01-FF4N |
| 3/8" Female NPT | 3/8" Female NPT | 73.90 | - | 22.2 | - | YCV01-FF6N |
| 1/2" Female NPT | 1/2" Female NPT | 90.60 | - | 27.00 | - | YCV01-FF8N |
| 3/4" Female NPT | 3/4" Female NPT | 104.00 | - | 31.80 | - | YCV01-FF12N |
| 1" Female NPT | 1" Female NPT | 123.00 | - | 41.27 | - | YCV01-FF16 |
| 1/8" Male NPT | 1/8" Male NPT | 44.5 | 24.4 | 15.88 | - | YCV01-MM2N |
| 1/4" Male NPT | 1/4" Male NPT | 54.0 | 24.7 | 15.88 | - | YCV01-MM4N |
| 3/8" Male NPT | 3/8" Male NPT | 71.4 | 43.0 | 22.2 | - | YCV01-MM6N |
| 1/2" Male NPT | 1/2" Male NPT | 80.3 | 42.2 | 22.2 | - | YCV01-MM8N |
| 3/4" Male NPT | 3/4" Male NPT | 104.00 | 65.8 | 31.8 | - | YCV01-MM12N |
| 1" Male NPT | 1" Male NPT | 114.8 | 67.3 | 35.0 | - | YCV01-MM16N |
Dimensions are for reference only and subject to change without notice
| FRACTIONAL | METRIC | SIZE | CODE | SIZE | CODE |
|---|---|---|---|
| 1/4" ODT | 4 | 6mm ODT | 6M |
| 3/8" ODT | 6 | 8mm ODT | 8M |
| 1/2" ODT | 8 | 10mm ODT | 10M |
| 3/4" ODT | 12 | 12mm ODT | 12M |
| 1" ODT | 16 | 16mm ODT | 16M |
| FRACTIONAL | METRIC | SIZE | CODE | SIZE | CODE |
|---|---|---|---|
| 1/8 | 2 | 1/2" | 8 |
| 1/8" | 4 | 3/4" | 12 |
| 3/8" | 6 | 1" | 16 |
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