Safety Valve Collection

The basic idea of a safety valve is to prevent accidents related to overpressure. When you're storing liquids or gasses in pressurized containers, you can encounter problems from time to time related to the pressure of those containers. And since this is obviously a huge hazard if it's not addressed, safety valves are used in all modern installations where pressurized tanks are involved, to act as a safeguard against incidents. If the pressure in a tank builds up too much, the valve is responsible for releasing the contents of the tank gradually until the pressure normalizes.

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Safety Valves

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Spring Load Safety Valve

Pilot Operated Safety Valve

High Performance Steam Safety Valve

Jacketed Safety Relief Valve

Safety Valve Manufacturing

About XINTAI

XINTAI VALVE GROUP CO., LTD. was founded in 1998, is a professional valve manufacturing company that conjoins R&D, casting, development, production and sale. The Group's headquarters is located in the Longgang Airport New District, Wenzhou, and is centered on research and manufacturing technology.

The factory covers an area of approximately 30,800 square meters. The two major bases for casting were respectively located in the central industrial zone of Longwan District, Wenzhou, with an area of 9,800 square meters. Longwan Airport New Area Casting Base in Wenzhou, with an area of 28,000 square meters. The existing staff of 578 people, including high and mid-level engineering and technical personnel 58 people, mainly in oil, natural gas, chemical, power stations, metallurgy, national defense, water conservancy projects, pharmaceuticals and other fields.

Safety Valve Inspection Report

We will issue an inspection report like this before all orders ship. The basic inspection steps include a visual examination, dimension check, witnessing test, painting check, packaging check, then issuing the finished test report. We can also carry out special tests according to customer requirements.

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We are prestigious manufacturer and supplier of Industrial Casting Safety Valve in Wenzhou.

XINTAI is registered with the following governmental agencies:

American Petroleum Institute(API) No. 6D-1778
Quality Management System Certificate of Approval (ISO9001:2015)
Certificate of Quality System Approval(CE) No. HPiVS-IP1001-015-Q-04-00
Certification of Registration( OHSAS18001) No.86185710109S

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Safety Valve -- a Controlling and Safety Device for Boilers and Pressure Vessels

Safety valves are an arrangement or mechanism to release a substance from the concerned system in the event of pressure or temperature exceeding a particular preset limit. The systems in the context may be boilers, steam boilers, pressure vessels or other related systems. As per the mechanical arrangement, this one get fitted into the bigger picture (part of the bigger arrangement) called as PSV or PRV that is pressure safety or pressure relief valves.

This type of safety mechanism was largely implemented to counter the problem of accidental explosion of steam boilers. Initiated in the working of a steam digester, there were many methodologies that were then accommodated during the phase of the industrial revolution. And since then this safety mechanism has come a long way and now accommodates various other aspects.

These aspects like applications, performance criteria, ranges, nation based standards (countries like United States, European Union, Japan, South Korea provide different standards) etc. manage to differentiate or categorize this safety valve segment. So, there can be many different ways in which these safety valves get differentiated but a common range of bifurcation is as follows:

ASME
Lift
Flow controlled
Balanced
Power operated
Full lift solid line
Direct safety loaded
Master

The American Society of Mechanical Engineers (ASME) I tap is a type of safety valve which opens with respect to 3% and 4% of pressure (ASME code for pressure vessel applications) while ASME VIII valve opens at 10% over pressure and closes at 7%. Lift safety valves get further classified as low-lift and full lift. The flow control valves regulate the pressure or flow of a fluid whereas a balanced valve is used to minimize the effects induced by pressure on operating characteristics of the valve in context.

A power operated valve is a type of pressure relief valve is which an external power source is also used to relieve the pressure. A proportional-relief valve gets opened in a relatively stable manner as compared to increasing pressure. There are 2 types of direct-loaded safety valves, first being diaphragms and second: bellows. diaphragms are valves which spring for the protection of effects of the liquid membrane while bellows provide an arrangement where the parts of rotating elements and sources get protected from the effects of the liquid via bellows.

In a master valve, the operation and even the initiation is controlled by the fluid which gets discharged via a pilot valve. Now coming to the bigger picture, the pressure safety valves based segment gets classified as follows:

Thermal pressure valves (used for the provision of protection incase of excess pressure if the device experiences increase of temperature).
Flow valves (come into picture where larger quantities of gases or liquids need to be released quickly to relive the growing pressure).
Shut off valves (used to close a fluid or gas based line and to stop the flow of materials).

So all in all, pressure safety valves, pressure relief valves, relief valves, pilot-operated relief valves, low pressure safety valves, vacuum pressure safety valves etc. complete the range of safety measures in boilers and related devices.