Onn A42 Sec Lined Series Soft Seal Full Lift Closed Spring Loaded Pressure Safety Valve with Excellent Sealing

Product Description

Product Description The A42F safety valve is suitable for equipment or pipelines with a working temperature of -40 ºC for liquefied petroleum gas or similar non corrosive media. The AH42F safety reflux valve is suitable for the liquid phase reflux pipeline at the outlet of the tank pump in the liquefied petroleum gas station. When the pressure inside the equipment or pipeline exceeds the allowable value, the valve will automatically open and then discharge in full. When the pressure drops to the specified value, the valve will automatically close to ensure safe operation of the equipment.
Product Parameters

NO.	Parts	Materials
1	Body	WCB+F46
2	Disc	F46
3	Guide	F46
4	Spring	50CrVA Coated Teflon
5	Bonnet	WCB
6	Cap	WCB

Detailed Photos
Certifications
After Sales Service 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.

Application Scope
FAQ 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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