Details
The Tight Butterfly Valves Type PRS are used as flow control units in the automatic and remote control systems to adjust flow intensity of liquids and gases. Due to high leakage class they are preferred as devices that cut off flow of utilities. Besides, they can be used as flow control throttling valves with throttling disc angle 25 … 75°.
| Technical Table | |
| Nominal sizes | DN40; 50; 65; 80; 100; 125; 200; 250; 300 |
| Nominal pressure | PN6; 10; 16; 20; 25; |
| Flow Coefficient | 2.6 … 6336 m³/h |
| Temperature | – 35 … + 160°C |
| Rangeability | 50:1 |
| Body materials & Bonnet | Spheroidal iron EN-GJS 400-18LT;
Carbon steel GP 240 GH (1.0619) ; |
| Packing Ring | EPDM EPDM-HT NBR (BUNA N) NR (Natural Rubber) VMQ (Silicon) FKM (Viton) CR (Neoprene) CSM (Hypalon) |
