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A safety valve protects the system and equipment from overpressure. Overpressure develops when the pressure exceeds the system’s maximum allowable working pressure (MWAP) or the pressure under which it has been designed. Safety valves have a short opening time to discharge gases or liquids immediately. A safety valve opens when a certain pressure is reached; it opens partially at first to eliminate undesirable pressure from the system as rapidly as possible.
Safety valves are utilized to stop pressure rises that might cause malfunctions, fire risks, or explosions. Safety valves are utilized when electrical or pneumatic safety systems malfunction since they only have mechanical components. The system’s media fully activates a safety valve, keeping it operational in the case of a power failure.
The oil and gas sector and other industries can benefit from a wide range of safety valve types. Each kind has a unique combination of characteristics that make it appropriate for some purposes but inappropriate for others.
One of the most common safety valves is spring-loaded safety valves, which use a spiral spring pressed by an adjustable screw to provide the closing force or spring force. Before the safety valve lifts noticeably, the pressure beneath the valve must rise over the specified pressure
Pilot-operated relief valves (PORV) are used for emergency relief during overpressure situations, the same as conventional pressure relief valves (PRV). In accordance with the manufacturer and the application, PORV are also known as pilot-operated safety valves (POSV) or pilot-operated pressure relief valves (POPRV).
In order to protect against boiler overpressure and for other downstream pressure-reducing controls, steam safety valves are frequently utilized. Stream valves are employed in process operations to avoid equipment damage caused by high pressure.
XINTAI safety valves are produced under BS 6759, JIS B 8210, API RP 521/526, ISO 4126, etc. Some of the standards are briefed here:
1
This standard defines the specification of safety valves for steam, hot water, compressed air, process fluids, etc.
2
This standard is used for spring loaded valves for steam boilers and pressure vessels
3
This valve is used for the installation and sizing selection of pressure relieving devices in refineries, depressurizing systems, seat tightness and other general requirements.
XINTAI Valve Group Co., LTD has been manufacturing safety valves since 1998. We offer high-performance steam safety valves, pilot operated safety valves, spring loaded safety valves, jacketed safety relief valves, etc., and reliable design and application features. The factory has a total area of 60,000 square meters.
Our quality management system complies with ISO 9001, CE, API, OHSAS 18001, and domestic TS security.
International industries rely on XINTAI valves as a producer of industrial valves that also offers customized solutions.
We have vast experience optimizing safety valve quality and cost since 1998.
XINTAI can produce 270K valves each year on average.
Safety valves developed by XINTAI that meet various standards incorporate a unique design, engineering, and manufacturing methods. Several industries, including oil, refineries, petrochemicals, pharmaceuticals, chemicals, paper and pulp food processing, nuclear power, etc., employ the high-quality safety that the XINTAI Valve Group produces. We enhance client interests while reducing expenses, rebating consumers, and fixing process difficulties. We offer safety and relief valves with the following:
Speedy and efficient operation
Complete reliability
Long service life
Compact design for reduced space use
Minimal pressure drops in the open position
A plethora of services for Safety Valve.
We follow stringent measures and dual inspections in accordance with world standards. We are committed to high-quality manufacturing using advanced detection equipment and precise testing methods.
With a capacity of producing 2,70,000 valves annually, we work round the clock to provide custom-made valves as per our client's needs. From material to size and design to applications, everything can be customized
Accurate installation and proper maintenance of the valve are imperative in maintaining a safe industrial environment. Your safety is our priority.
At Xintai we are devoted to excellent customer service. You can rely on us for queries, doubts or any other issues related to our product and service. Our team is always available online, on calls or face to face to serve you better
We are a prestigious the safety valve manufacturer from China.XINTAI is registered with the following governmental agencies:
Relief valves are automated valves used on equipment and system lines to stop over-pressurization. Most relief valves simply lift (open) at a predetermined pressure and reset (close) when the pressure drops just a little below the lifting pressure.
Normally, the valve should be set to open at the MAWP (Maximum Allowable Working Pressure) of the vessel it is meant to protect. A valve set at a MAWP of 100 PSI may open slightly above or below that pressure due to a tolerance to the actual set pressure.
Preferably, safety and safety-relief valves should be routed to a convenient place or put vertically with the drain holes left open. The whole pipe system must be supported.
Regular maintenance should be carried out. It is recommended to start initial inspections every 12 months or less. According to the service circumstances, the valve’s condition, and the required degree of performance, the operator must establish a suitable inspection interval.
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