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

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Onn Valve Co., Ltd.

VIP   Audited Supplier 2 years
Profile Certified by SGS/BV
A42F-25C-DN50-5
Acid
GB/T
CCC, ISO, CE
Low Temperature
Flange
Adjustable
Closed
Spring
Wcb
-40 Deg C to 80deg C
Chlor-Alkali Chemical Industry
Pn16-Pn40
Spring Loaded Full Lift Type PFA Lined Conventiona
Tsf733049-2027
ONN
Plywood Case
DN25-DN200
China
8481400000
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.PartsMaterials
1BodyWCB+F46
2DiscF46
3GuideF46
4Spring50CrVA Coated Teflon
5BonnetWCB
6CapWCB
 
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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