Union Check Valve

The Union Check Valve is a versatile backflow prevention solution featuring integrated union connections for easy installation and maintenance. This innovative design combines the reliability of a swing or spring check valve with the convenience of union fittings, allowing for quick removal without pipe cutting. Perfect for water supply, irrigation, and industrial systems where backflow protection and serviceability are critical. Available in PVC, brass, or stainless steel construction with sizes from 1/2″ to 4″. The union nuts with EPDM gaskets ensure leak-proof performance, while the stainless steel spring or swing mechanism provides dependable one-way flow control.

20 Многолетний опыт
20 Профессиональные производственные линии
Большой спотовый инвентарь

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Профиль компании

Product Description: Union Check Valve – Easy-Maintenance Backflow Prevention

Innovative Union Design for Simplified Service

Our Union Check Valve revolutionizes backflow prevention by combining reliable check valve functionality with the convenience of union connections. This dual-purpose design eliminates the need for pipe cutting during maintenance or replacement, saving time and reducing system downtime.

Key Features & Benefits:

✔ True Union Design – Integrated union nuts on both ends for tool-free installation/removal
✔ Dual Mechanism Options – Choose between spring-check (horizontal/vertical flow) or swing-check (horizontal flow only)
✔ Leak-Proof Construction – EPDM union gaskets with stainless steel fasteners
✔ Material Versatility – Available in PVC (chemical resistance), brass (potable water), and stainless steel (high-pressure)
✔ Full Flow Design – Minimal pressure drop for efficient system performance

Technical Specifications:

• Size Range: 1/2″ to 4″ (DN15 to DN100)
• Pressure Rating:

ПВХ: 150 PSI @ 73°F
Brass: 300 PSI @ 180°F
Stainless Steel: 450 PSI @ 250°F
• Temperature Range:
ПВХ: 32°F to 140°F
Metal Bodies: -20°F to 250°F
• End Connections: Female threaded unions (NPT/BSP)
• Seat Material: EPDM (standard), FKM (high-temp optional)

Ideal Applications:

✓ Residential & commercial water supply
✓ Irrigation and sprinkler systems
✓ Boiler feed lines
✓ Industrial process piping
✓ Pump discharge protection

Why Choose Our Union Check Valve?
✅ Time-Saving Maintenance – Replace or service without pipe modifications
✅ Reliable Backflow Prevention – Meets ASSE 1018 standards
✅ Universal Installation – Suitable for horizontal and vertical pipes (spring-check version)
✅ Cost-Effective – Reduces labor costs for repairs and replacements