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Tecval VW-20 3-Pieces Check Valve is a Forged design. Due to its 3-Pieces design allows easy and safe assembly. Unique in the market with Superduplex spring. The forged connections result a mechanical stronger and more durable product, especially suitable for working in high corrosive environment. They are manufactured in several sizes, connections and alloys, always under ASME B16.34.
| Maximum Pressure | Standard working pressure: 100 bar (1500 PSI) High working pressure 200 bar (2900 PSI) | |||||
|---|---|---|---|---|---|---|
| Temperature Range | -20ºC/200ºC (-4ºF/392ºF) | |||||
| Connections | Threaded BSP (DIN ISO 228-1) Threaded NPT (ANSI B1.20.1) Socket Weld SW (ANSI B16.11) Buttweld BW Sch. 40S (ANSI B16.25) Grooved ends
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| Dimensions | 1/2" | 3/4" | 1" | 11/4" | 11/2" | 2" |
| A | 73 | 73 | 88.5 | 100 | 100 | 114 |
| Horizontal Oberture Pressure (mbar) | 145 | 145 | 70 | 35 | 19 | 23 |
| C | 15 | 15 | 20 | 30 | 30 | 38 |
| A Grooved / Male | - | 121 | 127.5 | 160 | 160 | 185 |
| B | 70 | 70 | 78 | 97 | 97 | 109 |
| Materials | AISI-316L (1.4404) SuperDuplex (1.4410/1.4501) | |||||
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