An angle seat piston valve is a pneumatically-controlled valve with a piston actuator providing linear actuation to lift a seal off its seat. The seat is set at an angle to provide the maximum possible flow when unseated. Angle seat piston valves are particularly suited to applications where high temperatures and large flowrates are required, such as steam or water. When used in reverse some models of angle seat piston valve will eliminate water hammer when operated.
Pneumatic valves are operated by a pilot medium under pressure, usually compressed air but also oil or water.
| Technical specifications | |
|---|---|
| Construction | Angle seat shutting-off and regulating valve |
| Size range | DN 10 ÷ 50 |
| Nominal pressure | DN 10÷25: PN 16 with water at 20 °C
DN 32÷50: PN 10 with water at 20 °C |
| Temperature range | 0 °C ÷ 60 °C |
| Coupling standards | Solvent welding: EN ISO 1452, EN ISO 15493, BS 4346-1, DIN 8063, NF T54-028, ASTM D 2467, JIS K
6743. Can be coupled to pipes according to EN ISO 1452, EN ISO 15493, DIN 8062, NF T54-016, ASTM D 1785, JIS K 6741. Thread: ISO 228-1, DIN 2999, ASTM D 2467, JIS B0203. Flanging system: ISO 7005-1, EN ISO 1452, EN ISO 15493, EN 558-1 (DN 10÷50) , DIN 2501, ANSI B.16.5 cl.150, JIS B 2220. |
| Reference standards | Construction criteria:EN ISO 1452, EN ISO 15493 Test methods and requirements: ISO 9393 Installation criteria: DVS 2204, DVS 2221, UNI 11242 |
| Valve material | PVC-U |
| Seal material | EPDM+PE (EPDM+PTFE or FKM+PTFE on request) |
| Control options | Manual control |
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