| Customization: | Available |
|---|---|
| Media: | Oil |
| Standard: | En 12516 |
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Reliable sealing and excellent performance come from:
1. The corrugated pipe gate valve adopts an embedded threaded double stem structure. When the gate is opened and closed, the upper stem does not rise or fall, and the corrugated pipe does not rotate, reducing the opening space and protecting the corrugated pipe.
2. Adopting an internal and external guiding structure, the corrugated pipe and lower valve stem have good stability.
The external guide sleeve designed for the 3 bellows gate valve protects the bellows from direct erosion by the medium, greatly improving the service life of the bellows.
4. The corrugated pipe gate valve welds the corrugated pipe to the bottom of the valve stem, greatly reducing the height in the middle while ensuring stable performance.
5. Bellows gate valves have a similar center height to conventional gate valves.
6. The upper valve stem is equipped with a snap ring and bearing structure, which is very compact and has light torque.
7. Using corrugated pipes with larger diameters and pitches, single wave displacement is allowed to be large, which can effectively extend the service life of corrugated pipes under the same stroke.
| Nominal pressure | PN | MPa | |
| Test pressure | Strength test | 1.5×Pr | |
| Sealing test | 1.1×Pr | ||
| Air tightness test | 0.6 | ||
| Bellows component test | 1.5×Pr | ||
| Temperature | -196ºC~600ºC | ||
| Note: Pr is the rated pressure value of the material at room temperature, in Mpa. | |||
The company provides valve routine maintenance as well as training service for troubleshooting of common faults; provides remote or on-site valve review, installation and operation technical guidance; user's technical quality consultation will be replied within 24 hours; 18 months of product warranty period is provided (18 months in national standard); provide 24 - hour technical support hotline; provide various forms of after sale service for free during the warranty, provide life time after sale service and limited supply of free wearing parts for 18 months.
Q1:what is the safety valve ?
1. The main purpose of safety valves is to protect life, property and the environment. A safety valve is designed to open and release overpressure in a container or device, and to re-close and prevent further fluid release when it returns to its normal state.
2. A safety valve is a safety device that is in many cases the last line of defense. It is important to ensure that the safety valve can operate at all times and under all circumstances. Safety valves are not process valves or pressure regulators and should not be abused. It should be run for one purpose only: overvoltage protection.\
Q2:How does a Safety Valve work?
The working principle of a safety valve can be summarized as follows:
1. Open: When the system pressure exceeds the set pressure of the safety valve, the valve disc opens under the action of medium pressure and spring force, releasing pressure.
2.Keep open: When the system pressure stabilizes within the set pressure, the spring stabilizes, the system remains under stress, and the safety valve remains open.
3. Close: When the system pressure is lower than the set pressure of the safety valve, the spring cannot lock and seal, and the valve disc closes under the action of medium pressure, and the medium pressure no longer increases.
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