Application
DP valve is a kind of health type constant pressure valve, which is suitable for the stainless steel piping system. In the process pipeline, DP series (entrance pressure) to maintain a constant pressure in the valve entrance end, used in the separator, heat exchanger equipment, as well as the overflow valve.
DP series valve (outlet pressure) to maintain a constant pressure in the valve outlet, the typical application: anterior filing macine/bottling machinery and othler equipment.
Operational Principle
DP series of constant pressure valve are compressed air out through the remote control. A diaphragm/stem system can respond made to any pressure variation transmission products Fast response, and to change the valve stem position, in order to continue to maintain a preset pressure valve. Compressed air pressure is the pressure regulating valve and the pressure to achieve the scale.
DP type valve increased in transporting products under the pressure to open, otherwise, delivery of product to reduce stress, the two valve will be closed. DP type valve increased in transporting products under the pressure of closed, conversely, conveying product pressure decreases, the valve will open (the following Principle).
Technical data
Material |
Contact product parts | 316L(1.4404)forged |
| non-contact product parts | 304(1.4301) | |
| Provide EN 10204 3.1B certificate | ||
| Seal material | Standard | &nPTFE covered EPDM ruber |
| Option | NBR\FPM\Silicone | |
| All seal materials comply with FDA 177.2600 | ||
| temperature | Running working temperature | -20～+135℃(EPDM) |
| Aterilization temperature | 150℃(Max 20min) | |
pressure |
Working pressure | 0~10bar |
| suface treatment | Internal surface | Ra≤0.8μm |
| External surface | Grit blasting | |
| connection | Connection standard | welded end:DIN 11850 series2 |
| welded end:INCH pipe standard | ||
| Connection method:welding、thread、clamp | ||