Natural Gas Pressure Relief Valves
Description
Natural Gas Pressure Relief Valves are critical components in gas systems designed to automatically release excess pressure from a system when it exceeds a predetermined limit. These valves ensure that the pressure within the system remains within safe operating limits, thereby preventing potential damage to equipment and ensuring the safety of the system.
Working Principle
Natural Gas Pressure Relief Valves operate based on a simple yet effective principle. They are normally closed and use a spring mechanism to maintain this state. When the pressure in the system exceeds the set threshold, the force exerted by the gas pressure overcomes the spring force, causing the valve to open. This allows the excess gas to escape, reducing the pressure back to safe levels. Once the pressure drops below the set limit, the spring force closes the valve. This automatic operation makes them invaluable for maintaining system integrity and preventing overpressure situations that could lead to equipment failure or safety hazards .
Applications
Natural Gas Pressure Relief Valves are used in a variety of applications across different industries. In chemical plants, they prevent overpressure that could lead to hazardous leaks or explosions. In power generation facilities, they ensure that pressure levels remain stable to protect turbines and other critical equipment. They are also used in residential and commercial heating systems to maintain safe pressure levels in gas lines and appliances .
Advantages over other Process - Valves
Pressure relief valves offer several advantages over other types of process valves. Their compact size and ease of setting and adjustment make them versatile and widely used. They provide reliable performance with repeatability, ensuring consistent protection against overpressure. Unlike some other valve types, they do not require external power sources or complex control systems, which simplifies their integration into existing systems .
Limitations
Despite their advantages, Natural Gas Pressure Relief Valves have limitations. They are not suitable for applications requiring "POP SAFETY" valves, which are designed to open fully at a set pressure. Additionally, they may not be ideal for systems where precise pressure control is critical, as they are primarily designed for safety rather than regulation .
Considerations
When selecting and using Natural Gas Pressure Relief Valves, several considerations should be taken into account. Initial costs can vary depending on the size and specifications of the valve. Operating expenses are generally low, as these valves do not require external power. Durability is a key factor, as valves must withstand the conditions of the system they are protecting. Accuracy in maintaining the set pressure is crucial for safety, and regular maintenance is necessary to ensure reliable operation. Replacement and maintenance costs should be factored into the overall cost of ownership, as valves may need periodic testing and recalibration to maintain their effectiveness .
from CIRCOR Energy
CIRCOR Energy is pleased to offer the Model 3500 as part of our Pilot Operated Valves portfolio. Below is a list of features that will enable you to better understand its capabilities. Features. Snap acting & modulating options available. API orifice sizes "D" through "T". Air & gas... [See More]
- Media: Gas; LP Gas; Natural Gas
- Controlled Pressure Range: 900.00 to 6170.00
- Valve Size: 1.00 to 8.00
- Connection Description: BoltFlange
from Cooper Valves
When performance under pressure is critical, the Accuseal ® Automated Relief Valve is a must, The Accuseal ARV design provides automatic or manual overpressure protection for steam boiler systems, assisting with venting for start-up and shutdown. [See More]
- Media: Gas; Natural Gas; Sour Gas; Specialty Corrosive
- Maximum Pressure: 3705.00 to 11110.00
- Valve Size: 1.00 to 2.00
- Connection Description: BoltFlange; Butt Weld; BW RFF Custom
from Equilibar, LLC.
Precision Back Pressure Regulator for Hygienic Service. For gas, liquid and mixed phase processes. Wide Range of working Pressures and Flows. Rugged 316 stainless steel Bar Stock Design with no Welded Fittings. Hygienic: No Crevices, <32Ra Finish. 3 Piece Low Dead Volume Design. Ports are the... [See More]
- Media: Hydraulic; Air; Breathable; Compressed Air; Water; Hot Water; Cold Water ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Powder Solids (optional feature); Steam
- Maximum Pressure: 0.00 to 150.00
- Valve Size: 0.50
- Controlled Pressure Range: 0.00 to 150.00
from co-ax valves inc.
Function: pressure balanced pressure limitation valve, externally controlled or direct acting. Media: gaseous, liquid, highly viscous, contaminated. Body Materials: brass, aluminum, stainless steel, galvanized steel. Options: SAE connection, safety valve, mounting, special voltage, coil M 12 x 1,... [See More]
- Media: Hydraulic; Air; Breathable; Compressed Air; Water; Hot Water; Cold Water ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity (optional feature); LP Gas; Natural Gas; Specialty Corrosive (optional feature); Steam (optional feature)
- Maximum Pressure: 0.00 to 600.00
- Valve Size: 1.26
- Controlled Pressure Range: 0.00 to 600.00
from CIRCOR Energy
CIRCOR Energy offers several lines of spring-loaded safety relief valves ideally suited for pipe and pressure vessel protection in Upstream, Midstream and Downstream Hydrocarbon applications. Useful for air, gas, liquid and mixed phase services, these valves are designed for reliable operation, long... [See More]
- Media: Air; Compressed Air; Gas; LP Gas; Natural Gas
- Controlled Pressure Range: 12500.00
- Valve Size: 0.25 to 3.00
- Connection Description: Threaded
from Equilibar, LLC.
Precision Back Pressure Regulator. For gas & mixed phase processes. Rugged Bar Stock Design. Available in ¼ inch through 1 inch sizes. SS316 standard with Hastelloy C optional. Diaphragms available in PTFE, Hastelloy, SS316, and polyimide. The GS series is specifically designed for a... [See More]
- Media: Hydraulic; Air; Breathable; Compressed Air; Water; Hot Water; Cold Water ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Powder Solids (optional feature); Steam
- Maximum Pressure: 0.00 to 2500.00
- Valve Size: 0.12 to 1.00
- Controlled Pressure Range: 0.00 to 2500.00
from co-ax valves inc.
Function: pressure balanced pressure limitation valve, externally controlled or direct acting. Media: gaseous, liquid, highly viscous, contaminated. Body Materials: brass, aluminum, stainless steel, galvanized steel. Options: SAE connection, safety valve, mounting, special voltage, coil M 12 x 1,... [See More]
- Media: Hydraulic; Air; Breathable; Compressed Air; Water; Hot Water; Cold Water ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity (optional feature); LP Gas; Natural Gas; Specialty Corrosive (optional feature); Steam (optional feature)
- Maximum Pressure: 0.00 to 600.00
- Valve Size: 0.59
- Controlled Pressure Range: 0.00 to 600.00
from Equilibar, LLC.
Equilibar's Research Series back pressure regulator offer precision performance for high pressure applications up to 5000 psig. These regulators provide stable inlet pressure across widely varying flow rates, for liquid, gas, and mixed phase fluids. We can provide diaphragms of Stainless Steel 316,... [See More]
- Media: Hydraulic; Air; Breathable; Compressed Air; Water; Hot Water; Cold Water ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Powder Solids (optional feature); Steam
- Maximum Pressure: 0.00 to 10000.00
- Valve Size: 0.12
- Controlled Pressure Range: 0.00 to 10000.00
from co-ax valves inc.
Function: pressure balanced pressure limitation valve, externally controlled or direct acting. Media: gaseous, liquid, highly viscous, contaminated. Body Materials: brass, aluminum, stainless steel, galvanized steel. Options: SAE connection, safety valve, mounting, special voltage, coil M 12 x 1,... [See More]
- Media: Hydraulic; Air; Breathable; Compressed Air; Water; Hot Water; Cold Water ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity (optional feature); LP Gas; Natural Gas; Specialty Corrosive (optional feature); Steam (optional feature)
- Maximum Pressure: 72.52 to 1450.38
- Valve Size: 0.59
- Controlled Pressure Range: 72.52 to 1450.38
from Equilibar, LLC.
New Beta HT Series Extends Temperature to 450C. Equilibar has just made its HT Series back pressure regulators available for beta release to select customers. These regulators utilize a graphite seal for temperatures to 450C and pressures to 5000 psig. The Grafoil GTA seal is nuclear grade purity... [See More]
- Media: Hydraulic; Air; Breathable; Compressed Air; Water; Hot Water; Cold Water ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Powder Solids (optional feature); Steam
- Maximum Pressure: 0.00 to 5000.00
- Valve Size: 0.12
- Controlled Pressure Range: 0.00 to 5000.00