LP - Gas Check Valves
Last Updated: April 1, 2025
Description
LP-Gas Check Valves are designed to allow the flow of liquefied petroleum gas in one direction while preventing backflow. These valves are crucial in maintaining the integrity and safety of gas systems by ensuring that the gas flows only in the intended direction.
Working Principle
LP-Gas Check Valves operate based on a simple mechanism where a movable part, such as a ball or piston, is pushed open by the flow of gas in the desired direction. When the flow stops or reverses, the movable part returns to its seat, effectively sealing the valve and preventing backflow. This mechanism is essential for maintaining system pressure and preventing contamination or leakage, making these valves highly useful in gas distribution systems.
Applications
LP-Gas Check Valves are commonly used in various applications, including:
- Oil Bath Systems: They regulate oil pressure in systems that operate under extreme temperatures, as seen in certain industrial applications .
- Downhole Applications: In oil and gas industries, these valves are used in deep wells to ensure reliable operation under extreme environmental conditions .
Advantages over other Manufacturing - Vacuum Equipment
LP-Gas Check Valves offer several advantages over other types of valves used in vacuum equipment:
- Versatility: They can be used with a variety of fluids, including steam, air, gas, water, and vapor lines, making them suitable for high flow velocities .
- Installation Flexibility: These valves can be installed in lines with vertical flow, which is not always possible with other valve types .
Limitations
One limitation of LP-Gas Check Valves is that they may not be suitable for applications requiring stringent pressure specifications or complete leak-proof performance, as some designs do not meet these criteria .
Considerations
When selecting LP-Gas Check Valves, several factors should be considered:
- Initial Costs: The cost of the valve can vary depending on the material and design, with stainless steel options typically being more expensive.
- Operating Expense: These valves generally have low operating expenses due to their simple design and minimal maintenance requirements.
- Durability: The durability of the valve is influenced by the materials used, with metal options offering greater longevity.
- Accuracy: While these valves are effective in preventing backflow, their accuracy in maintaining pressure may vary based on design.
- Replacement and Maintenance Costs: Maintenance is generally straightforward, but replacement costs can be higher for specialized designs or materials.
from DFT Inc.
The DFT ® Model PDC ® Silent Check Valve is specially designed for use on the discharge side of reciprocating air or gas compressors. It includes a pulse damping chamber to maintain the disc in the open position during the momentary reductions in flow associated with each cycle of a... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive
- Material Of Construction: Stainless Steel (optional feature); Steel (optional feature)
- Valve Type: BallDisk; Severe Service
- Valve Size: 2.00 to 12.00
from DFT Inc.
The DFT ® Excalibur ® Silent Check Valve is a spring-assisted, center guided, in-line, check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. The valve consists of a body, gasket, seat, spring, disc with stem and guide... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive
- Material Of Construction: Aluminum (optional feature); Brass / Bronze (optional feature); Stainless Steel (optional feature); Steel (optional feature); Exotic Metal (optional feature)
- Valve Type: BallDisk; Severe Service
- Valve Size: 2.00 to 24.00
from DFT Inc.
The DFT ® Model DLC ® is a corrosion resistant, dependable, versatile and economical spring assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or steam, the DLC ® provides tight shut-off and protects other equipment in the system from water... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Steam
- Material Of Construction: Stainless Steel; Exotic Metal (optional feature)
- Valve Type: BallDisk; Severe Service
- Valve Size: 0.50 to 3.00
from DFT Inc.
The FBC ™ is a compact, lightweight, insert wafer check valve that easily installs between two flanges. The in-line, spring assisted design prevents "water hammer" and "reverse flow". The FBC ™ contains all of the proven features of the Basic-Check ® valve developed by DFT ® over... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Steam
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk; Umbrella; Severe Service
- Valve Size: 1.00 to 4.00
from DFT Inc.
The DSV ® is an in-line spring-assisted check valve designed to prevent flow reversal in industries with strict cleanliness codes. To accommodate various piping arrangements, the DSV ® is available as a "Vertical" or "Horizontal" valve. The Horizontal valve is for Horizontal lines requiring... [See More]
- Media: Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Steam
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk; Severe Service
- Valve Size: 0.50 to 3.00
from AVK International A/S
Swing Check Valves. Flanged Non Return Valve to EN12266. Cast Iron or Ductile Iron with or without Stainless Steel internals. Sizes range from DN150 to DN300. [See More]
- Media: Gas; LP Gas; Natural Gas
- Valve Size: 6.00 to 20.00
- Material Of Construction: Cast Iron (optional feature); Ductile Iron
- Connection Description: BoltFlange
from Mueller Steam Specialty
Can be used in a variety of applications including: chilled and hot water systems, refrigeration, plumbing, air conditioning, gas and liquid applications, water filtration, oxygen systems, boiler feed lines, centrifugal pump and compressor systems and process applications. [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Process Industries, Construction
- Material Of Construction: Aluminum (optional feature); Brass / Bronze (optional feature); Stainless Steel (optional feature)
- Valve Type: BallDisk
- Valve Size: 2.00 to 36.00
from NIBCO INC.
Bronze Check Valves for use in commercial and industrial applications. Typical services include; hot and cold water, HVAC, steam, compressed air, gas and other general utility services. 125 psi/8.6 bar saturated steam to 353 °F/178 °C, 200 psi/13.8 bar non-shock cold working pressure,... [See More]
- Media: Water; Hot Water; Cold Water ; Gas; LP Gas; Natural Gas; Steam
- Material Of Construction: Brass / Bronze
- Valve Type: BallDisk; Swing
- Valve Size: 0.25 to 4.00
from Xiamen Landee Industries Co., Ltd.
Key Specifications/Special Features: Working pressure: PN10; PN16. Body materials: cast iron, ductile iron, aluminum bronze, stainless steel and carbon steel. Applicable temperature: from -40 to +230 degrees C. Size range: from 2 to 40 inches diameter (DN25 to DN1000mm). Face to face according to... [See More]
- Media: Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; LP Gas; Natural Gas; Sour Gas
- Material Of Construction: Aluminum; Brass / Bronze; Cast Iron; Ductile Iron; Stainless Steel; Steel; Carbon Steel
- Valve Type: Swing
- Valve Size: 2.00 to 40.00
from Mueller Steam Specialty
Can be used in a variety of applications including: chilled and hot water systems, refrigeration, plumbing, air conditioning, gas and liquid applications, water filtration, oxygen systems, boiler feed lines, centrifugal pump and compressor systems and process applications. [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Process Industries, Construction
- Material Of Construction: Stainless Steel (optional feature); Carbon Steel
- Valve Type: BallDisk
- Valve Size: 2.00 to 24.00
from Xiamen Landee Industries Co., Ltd.
Swing Check Valve with Cast Iron, Ductile Iron, Aluminum Bronze, and Stainless Steel Materials. Model Number:LD 016-WCK4. Key Specifications/Special Features: Working pressure: PN10, PN16, 125LBS. Body materials: cast iron, ductile iron, aluminum bronze, stainless steel, and carbon steel. Applicable... [See More]
- Media: Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; LP Gas; Natural Gas; Sour Gas
- Material Of Construction: Aluminum; Brass / Bronze; Cast Iron; Ductile Iron; Stainless Steel; Steel
- Valve Type: Swing
- Valve Size: 2.00 to 40.00
from Xiamen Landee Industries Co., Ltd.
Cast Steel Check Valve Delivered in 30 Days. Model Number: LD-003-CK. Key Specifications/Special Features: Manufacturing standards: API, ANSI, BS, DIN, JIS. Size range: from 1/2 inch to 32 inch (DN15mm - DN800mm). Pressure: from ANSI class 150 to 2500 (PN1.6-42MPa). Operating temperature: from -196... [See More]
- Media: Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; LP Gas; Natural Gas; Sour Gas
- Material Of Construction: Stainless Steel; Steel; Carbon Steel
- Valve Type: Swing
- Valve Size: 0.50 to 32.00
from Xiamen Landee Industries Co., Ltd.
Swing Check Valves, Pressure from ANSI Class 150 to 2500 (PN1.6-42MPa). Model Number:LD-003-CK2. Key Specifications/Special Features: Pressure: from ANSI class 150 to 2500 (PN1.6-42MPa). Manufacturing standards: API, ANSI, BS, DIN, JIS. Size range: from 1/2 inch to 32 inch (DN15mm - DN800mm). [See More]
- Media: Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; LP Gas; Natural Gas; Sour Gas
- Material Of Construction: Aluminum; Brass / Bronze; Cast Iron; Ductile Iron; Stainless Steel; Steel; Carbon Steel
- Valve Type: Swing
- Valve Size: 0.50 to 32.00
from Xiamen Landee Industries Co., Ltd.
Swing Check Valve, Flange Drilling According to ANSI125/150, DIN2501 PN10/PN16, and AS2129 Table E. Model Number:LD 016-WCK1. Key Specifications/Special Features: Key Specifications/Special Features: Working pressure: PN10, PN16, 125lb. Body materials: cast iron, ductile iron, aluminum bronze,... [See More]
- Media: Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; LP Gas; Natural Gas; Sour Gas
- Material Of Construction: Aluminum; Brass / Bronze; Cast Iron; Ductile Iron; Stainless Steel; Steel; Carbon Steel
- Valve Type: Swing
- Valve Size: 2.00 to 40.00