Gas safety valve quotation

A42F-40C Fully Open Liquefied Gas Safety Valve

Model: A42F-25C, A42F-40C, A41F-25C, A41F-40C

Full name: Spring type liquefied gas safety valve Closed type liquefied gas safety valve Full opening liquefied gas safety valve Micro opening liquefied gas safety valve

Introduction to liquefied gas safety valve:

A42F-25C liquefied gas safety valve, also known as gas safety valve, gas safety valve, natural gas safety valve, is a safety relief protection device installed in pipelines or storage tanks. It opens when the pressure of the medium in the equipment or pipeline exceeds the set value of the safety valve (opening pressure), and closes when the system pressure is lower than the set value of the safety valve (reseating pressure).

The spring type liquefied gas safety valve of the new equipment needs to be calibrated by the local boiler inspection institute before installation and use. The closed type liquefied gas safety valve in use needs to be calibrated once or twice a year. When it opens below the specified pressure, it may be due to inaccurate constant pressure or decreased spring elasticity caused by aging. The adjusting screw should be tightened appropriately or the spring should be replaced.

A42F-40CDN50 Fully Open Liquefied Gas Safety Valve Physical Picture - Shanghai Yonglong Valve Factory

Design parameters of liquefied petroleum gas safety valve:

Design and standard: B/T12243

Flange connection: JB/T79-94, GB9113-2000

Structural length: GB12221-89

Nominal diameter: DN25-150mm

Nominal pressure: PN1.6, PN2.5, PN4.0MPa

A42F-40CDN100 Spring type Liquefied Gas Safety Valve Picture - Shanghai Yonglong Valve Factory

Full opening liquefied gas safety valves are widely used in gas boilers, liquefied petroleum gas tank trucks or liquefied petroleum gas railway tankers, oil production wells, high-pressure bypass, pressure pipelines, pressure vessels, etc. of steam power generation equipment. Safety valves are generally divided into spring type safety valves, lever type safety valves, and pulse type safety valves according to their structural forms. Among them, spring type safety valves are widely used and can be divided into threaded safety valves and flange safety valves according to their connection methods.

The opening height of a micro opening liquefied gas safety valve is less than 1/4 of the channel diameter, usually ranging from 1/40 to 1/20 of the channel diameter. The action process of the micro opening safety valve is proportional action type, mainly used in liquid applications, and sometimes also used in gas/liquid applications with small emissions.

A42F-40C Fully Open Liquefied Gas Safety ValveRelated names: Gas Safety Valve, Gas Safety Valve, Natural Gas Safety Valve, Natural Gas Safety Valve, Gas Specific Safety Valve, Gas Specific Safety Valve, Liquefied Petroleum Gas Safety Valve, Natural Gas Specific Safety Valve, Petroleum Liquefied Gas Safety Valve, Liquefied Gas Specific Safety Valve, Natural Gas Safety Valve - Shanghai Cut off Valve Manufacturer/Shanghai Yonglong Valve Factory