Check Valves
Irrigation Check Valves
When irrigation systems lose pressure or allow backflow, the result can be wasted water, uneven distribution, and system damage. The right irrigation check valve solves these problems by maintaining directional flow and protecting components from reverse pressure. At Southern Valve & Fitting, we supply high-quality irrigation check valves engineered for precision, corrosion resistance, and long-term reliability. Our valves help maintain stable system performance, protect pumps, and keep irrigation lines operating efficiently season after season.
Types of Check Valves for Irrigation
We offer a complete line of irrigation check valves to meet the specific demands of agricultural, commercial, and residential systems. Each valve is designed for easy installation, dependable sealing, and compatibility with multiple materials and pressures.
Our product range includes:
- PVC Check Valves: Lightweight and chemical resistant, ideal for water treatment or fertilizer injection systems.
- Brass Check Valves: Strong and corrosion-resistant, suitable for heavy-duty applications and higher pressure lines.
- Swing Check Valves: Provide smooth flow with minimal restriction, perfect for low-pressure irrigation systems.
- Spring-Loaded Check Valves: Offer precise backflow prevention and quick sealing response.
- Foot Valves: Designed for use at the pump inlet to maintain prime and prevent drainage.
All irrigation check valves are built to perform under continuous use and deliver consistent, leak-free operation.
For customers managing large-scale systems, we also supply industrial check valves designed for higher flow rates and demanding environments.
Key Features of Irrigation Check Valves
The performance of an irrigation check valve depends on quality construction and precise engineering. At Southern Valve & Fitting, our check valves feature:
- Corrosion-Resistant Materials: Built from durable PVC, brass, or stainless steel to withstand exposure to moisture and chemicals.
- Tight Sealing Mechanisms: Prevent reverse flow and pressure loss, ensuring system efficiency.
- Low Cracking Pressure: Allows water to flow freely while maintaining backflow protection.
- Easy Maintenance Design: Simplifies cleaning and inspection, minimizing downtime.
- Versatile Connections: Available in threaded, socket, and flanged styles for flexible installation.
Each check valve is tested to ensure dependable sealing and long service life, even under variable operating conditions.
Benefits of Using Check Valves in Irrigation Systems
Installing reliable irrigation check valves offers several key benefits to system owners and contractors:
- Prevents Backflow Contamination: Keeps water supplies clean and compliant with safety standards.
- Maintains Line Pressure: Ensures consistent flow for uniform watering and pump protection.
- Reduces Maintenance Costs: Prevents system wear caused by pressure surges or reverse flow.
- Improves System Efficiency: Helps optimize energy and water use, especially in large networks.
- Extends Equipment Lifespan: Protects pumps, filters, and fittings from unnecessary strain.
For complete control and flow management, pair check valves with high-performance irrigation ball valves from our product line to build a durable and efficient irrigation system.
Request a Quote on Irrigation Check Valves
With more than five decades of expertise in flow control products, Southern Valve & Fitting is a trusted source for dependable irrigation check valves. Our technical team can help match the right valve to your system specifications. Contact us today for pricing, product details, or custom solutions designed to keep your irrigation system performing at its best.
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1020 Series - Ductile Iron Flex Check ValveThe SOVAL Flex Check Valve is designed with a precision molded disc with an integral o-ring type sealing surface and container alloy steel with Nylon Reinforcement in the flexible hinge area all manufactured to with stand a long lasting performing type of valve . The 1020 Series Flex Check comes equipped with a threaded port for a pipe plug on the bottom of the valve which will allow for field installation of a backflow actuator. Slamming and water hammer with the SOVAL 1020 Series Flex Check is virtually non-existent due to its short closing travel. Learn More -
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1036 Series - Cast Iron Wafer Silent Check ValveThe Soval 1036 Series Cast Iron Silent Wafer Check Valve has an economical and compact body design and stops water hammering in its tracks. Learn More -
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1037 Series - Cast Iron Flanged Silent Globe Check ValveThe SOVAL 1037 Series is a flanged silent globe check valve for liquid service that offers many advantages when compared to the traditional check valves. This valve is designed to close before the pump stops to eliminate water hammer, system surges, and of course flow reversal. The valve is fusion bonded epoxy coated and comes with a cast iron disc that is guided by a stainless steel brass stem allowing the valve to be installed vertical or horizontal Learn More -
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1080 Series - Ductile Iron Flanged Ball Check ValveThe SOVAL 1080 Series is a Flanged Pattern Ball Check Valve that is used to prevent back-flow allowing flow with minimum friction loss. Typically used in wastewater application or dirty media applications the 1080 series has an aluminum ball, fully encapsulated w/ EPDM Rubber. The valve is internally and externally fusion bonded epoxy painted. Learn More -
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640 Series - Brass Threaded Swing Check ValveFeatures:
- Threaded
- Forged Brass
- Swing Type
- Not for Potable Water in USA
- 200 WOG
- Temperature Range: -20F to 150F
- Positive one way flow for Plumbing and Irrigation with minimal pressure loss
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650 Series - Brass Threaded Spring Check ValvesFeatures:
- Threaded
- Forged Brass
- Spring Loaded for Fast Seating Action
- Not for Potable Water in USA
- 200 WOG
- Temperature Range: 10F to 210F
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684 Series - Brass Swing Check Valve, Lead FreeFeatures:
- Sizes: 1/4" - 4"
- Pressure Rating: 200 WOG | Non-Shock
- Temperature Rating: 180°F
- Lead Free
- Pressure Rating for Steam: 125 PSI | 320°F
- FIP x FIP
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685 Series - Brass Swing Check Valve, Lead FreeFeatures:
- Sizes: Sizes: 1/2" - 4"
- Pressure Rating: 200 WOG | Non-Shock
- Temperature Rating: 180°F
- Lead Free
- S x S
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686 Series - Bronze Spring Check Valve, Lead FreeFeatures:
- Sizes: 1/2" - 4"
- Pressure Rating: 200 PSI | Non-Shock
- Temperature Rating: 180°F
- Lead Free
- FIP x FIP
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823 Series - Ductile Iron UL/FM Grooved End Swing Check ValveUL / FM at 300 psi, the highest rated pressure in the industry. UL / FM Swing Check Valves – Groove x Groove (2.5” – 12” Sizes) have a full waterway design, providing maximum flow area. Offers low pressure drop, non-slam performance. High strength ductile iron construction. For horizontal or vertical installations. Two test plugs included. Fusion Bonded Epoxy Coated to AWWA C550 Standard. Learn More -
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823RCV Series Grooved End Riser Check ValveThe Soval ULFM 823 RCV Grooved End Riser Check Valve Series is a must have for your ULFM projects. Manufactured with convenience in mind, the Soval RCV Series features tapped boss and plugs on bottom and sides, for installation of ULFM pressure gauges and drain valves. Learn More -
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824 Series - Ductile Iron UL/FM Flanged Swing Check ValveUL / FM at 300 psi, UL / FM Swing Check Valves – Flange x Flange (2” – 12” Sizes) are manufactured to AWWA C508 Standard, offering a Clear Waterway. Resilient Seating with EPDM rubber to bronze seat ring seal. Flanged Ends to ANSI B16.1, Class 125. Two test plugs included. Fusion Bonded Epoxy Coated Interior and Exterior to AWWA C550 Standard. Certfied to NSF / ANSI 61 & 372. Learn More -
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826 Series - Ductile Iron Swing Check Valve w/ Lever and Weight Flanged EndsLever and Weight Swing Check valves manufactured to AWWA C508 Standard. Resilient seated disc seals against integral bronze seat ring. Full waterway design. Available in 2” through 24” sizes, Flanged ends, ANSI B16.1, Class 125. 200 psi Water Working Pressure rating in sizes through 12”, 150 psi in 14”-24” sizes. Also available in Lever & Spring configuration. Fusion Bonded Epoxy Coated Interior and Exterior to AWWA C550 Standard. Learn More -
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827 Series - Swing Check Valve with Lever & Weight ArmSoval’s Series 827 Swing Check Valves with Lever & Weight Arm are fully compliant with ANSI/AWWA C508 standards. They are rated for a working pressure of 350 psig and can be installed in either horizontal pipelines or vertical lines where the flow is upward. Learn More -
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836 Series - Ductile Iron Wafer Style Check ValveThe SOVAL 836 Series offers a short face to face dimension and compact design allowing installation and service between tight spaces. This valve is has a single door design and is spring assisted for better dynamic behavior. It is soft seated for perfect tightness even at low differential pressure. This valve has very little obstruction for the media to pass. Learn More -
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837 Series - Double Door Check Valve UL ListedThe SOVAL 837 Series offers a short face to face dimension and compact design allowing installation and service between tight spaces. This valve is UL Listed and is spring assisted for better dynamic behavior. It is soft seated for perfect tightness even at low differential pressure. Learn More
