





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 Experiência de anos
- 20 Linhas de produção profissionais
- Grande inventário de pontos
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
Especificações técnicas:
• Size Range: 1/2″ to 4″ (DN15 to DN100)
• Pressure Rating:
-
PVC: 150 PSI @ 73°F
-
Brass: 300 PSI @ 180°F
-
Stainless Steel: 450 PSI @ 250°F
• Temperature Range: -
PVC: 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
Available with Optional Features:
• Clear PVC body for visual flow inspection
• Tamper-proof union nuts
• Heavy-duty stainless steel springs
Request a quote today for your specific application requirements!







Perguntas frequentes
1.Que tipo de empresa você é?
Somos uma empresa integrada de indústria e comércio. Produzimos e vendemos nossos próprios produtos na esperança de fornecer melhores preços e serviços.
2.Qual é a localização da sua empresa?
Nossa empresa está localizada em Kunming, Província de Yunnan, China.Come visitar a qualquer momento.
3. Qual é a sua hora de delieve?
O tempo de delievery por aí 7 Dias,De acordo com o requisito dos clientes.
4.Como obter amostra e economizar custo?
Nós fornecemos amostras de graça, Você só precisa pagar pelo envio expresso.
5.Por que nos escolher?
A. Alta qualidade e baixo preço.B. Resposta Quick e entrega rápida.
