API 6A Hydraulic Safety Relief Valve H2S sour service for choke manifold and

Product Specification

Production Description:

Safety Relief Valve

A safety relief valve is a crucial component used to protect pressure vessels, pipelines, and other systems from overpressure conditions. It is designed to automatically open and relieve excess pressure when it exceeds a predetermined set point, thereby preventing equipment damage, explosions, or other hazardous situations.

The primary function of a safety relief valve is to maintain the system's pressure within safe limits by discharging the excess fluid or gas. Once the pressure returns to a safe level, the valve closes to reseal the system. Safety relief valves are commonly used in various industries, including oil and gas, chemical, petrochemical, power generation, and manufacturing.

Key features and considerations of safety relief valves include:

1. Set Pressure: The pressure at which the valve opens and starts relieving the excess pressure.
2. Capacity: The flow capacity of the valve, usually expressed in terms of the maximum flow rate it can handle.
3. Overpressure Limit: The maximum pressure that the valve can handle without damage.
4. Design Standards: Compliance with industry standards such as API 526, ASME Boiler and Pressure Vessel Code (BPVC), and other applicable regulations.
5. Size and Connection: The valve should be appropriately sized to match the system's flow requirements, and the connection type should be compatible with the system.

It's important to consider the specific requirements and conditions of your application when selecting a safety relief valve. Consulting with experts or valve manufacturers will help ensure that you choose the right valve that meets the necessary standards and performance criteria for your system's safety.

safety relief valves are designed to meet the customer's demand for high-quality, reliable, and reasonably priced valves. All gate valves of Zhengxuan are manufactured by fully utilizing modern raw materials and processing techniques. It is easy to maintain and fully complies with international design requirements and quality assurance. All gate valves are manufactured in workshops that comply with API Q1 and ISO 9001 certifications based on API 6A standards.

All safety relief valves bodies and covers are machined from cast or forged AISI4130 or AISI410. Other special materials, such as Inconel stainless steel or duplex stainless steel, can also be used according to customer requirements.

The safety relief valves plate and valve seat are precisely ground to ensure reliable sealing between metal surfaces.
The expansion flat valve is designed with an elastic sealing surface on the valve seat to match the flow seal, ensuring that the valve seat is tightly wedged into the valve seat opening or closing.

All safety relief valves are bi-directional sealed, with no risk of pressure leakage, and have good sealing performance against pressure in all directions.
The valve stem seal is a non elastic seal, suitable for most fluids and gases. The valve stem using PTFE/R-PTFE sealing device has low operating torque due to its reduced frictional resistance. The valve stem seal can also use graphite material according to the actual applicable temperature environment.

Suitable for choke manifolds, Christmas trees, etc

Work pressure: 2000PSI~20000PSI

Nominal diameter: 1.13/16 "~7.1/16" (46mm~103mm)

Working media: oil, natural gas, mud

Working temperature: -46 ℃~121 ℃ (LU level)

• Material level: AA, BB, CC, DD, EE, FF, HH

• Specification level: PSL1 to 4

Performance level: PR1-2