Bypass valve T27F Self-acting, for liquids, gases and steam. Prevents overpressure. Backpressure or vacuum does not affect the set overpressure (holding pressure).
The T27 bypass valve is a single seat valve and is particularly suitable for incompressible media such as water, oil (lubricating oil, fuel oil, HFO, LFO, MGO), etc. The valves are fully balanced so that back pressure does not affect the set pressure (overflow), only the flow rate changes depending on the pressure drop.
They are mainly used in pump circuits to maintain constant pressure.
The seal between the guide bush and the cone is stainless steel bellows.
Relief (bleed) valves can be supplied with flanges, butt weld or threaded connections.
Specifications
Mounting length acc. EN 558-1
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 |
|---|---|---|---|---|---|---|---|---|---|---|
| L (mm) | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 |
| Height (mm) | 285 | 285 | 285 | 290 | 290 | 370 | 365 | 495 | 500 | 695 |
| h (mm) | 105 | 105 | 105 | 105 | 105 | 130 | 175 | 185 | 210 | 210 |
| B(mm) | 100 | 100 | 100 | 115 | 130 | 160 | 160 | 195 | 235 | 285 |
