Product Overview

TheCast Iron Swing Check Valve is a reliable, automatic non-return valve designed to prevent reverse flow in water, wastewater, ne sistemas tuberías industriales. Featuring a robust cast iron or ductile iron body with a hinged disc that swings freely on a pin, this valve opens with forward flow and closes automatically when flow stops or reverses — protecting pumps, compressors, and other equipment from damaging backflow. Available with EPDM soft seal (0°C to +80°C) for bubble-tight shut-off or metal-to-metal seal (-10°C to +350°C) for high-temperature applications. The flanged ends conform to BS EN 1092-2:1997 estándares, ensuring compatibility with international piping systems. With sizes from 2″ to 24″ (DN50 to DN600) and pressure ratings PN10/PN16, this valve is suitable for a wide range of applications including drinking water, suministro ar dehe & Drenaje, wastewater treatment, Riego, HVAC, fire protection, and chemical & energy industries. The fusion-bonded epoxy coating provides superior corrosion protection for long service life. With OEM/ODM customization support, it is the trusted choice for engineers and plant operators worldwide.

Cast iron swing check valve

Technical Specifications

Cast iron swing check valve

Key Features

1. Swing Check Design – Low Pressure Drop
2. Dual Seal Options – Soft Seal & Metal Seal
3. Robust Ductile Iron Disc – Durable & Corrosion Resistant
4. Fusion-Bonded Epoxy Coating – Superior Corrosion Protection
5. BS EN 12334 Compliant – International Standard
6. Wide Temperature Range – -10°C to +350°C

Working Principle

The swing check valve operates through a simple yet reliable mechanism:

• 1. Forward Flow (Valve Open): When upstream pressure exceeds downstream pressure, the disc swings open on its hinge pin, allowing flow to pass through with minimal resistance.
• 2. Reverse Flow or Stop (Valve Closed): When flow stops or reverses, gravity and backflow pressure cause the disc to swing back onto the seat, creating a tight seal.
• 3. Horizontal Installation: Swing check valves must be installed horizontally (or in slightly sloping lines) to allow gravity to assist in closing the disc.

Cast iron swing check valve

Aplicaciones

1. Water Supply & Distribution
2. Wastewater Treatment
3. Fire Protection Systems
4. Industrial Process Lines

Embalaje ne envío

Packing depends on the product type and quantity. Options include wooden crates or carton boxes with proper protection for flange faces. Shipment can be arranged by sea, ferrocarril, air, or as per customer’s request.

Perfil ar empresa

Luoyang Datang Energy Tech Co., Ltd ge 'nar proveedor ar barbula industrial xi hño ar tsa̲, dedicated to providing reliable flow control solutions for water treatment, HVAC, fire protection, NE SISTEMAS TUBERÍAS INDUSTRIALES JAR NGA̲THO AR XIMHA̲I. All products are manufactured to international standards with ISO 9001 certificaciones. Ko nä'ä 10 years of experience, 'nar instalación ja xí 'ño ar 80,000 m², ne 200+ empleados profesionales, servimos ja ya clientes jar 10+ countries with quality products, precios competitivos, ne entrega confiable.

Cast iron swing check valve

Payment Terms

T/T, L/C at sight, Western Union, PayPal, Apple Pay, Google Pay, Tarheta ar crédito, etc.

FAQs | Nt'a̲ni frecuentes

Q1: ¿Ar tsa̲ da instalar 'nar barbula retención ar balanceo verticalmente?

A: No. Swing check valves must be installed horizontally (wa jar tuberías ligeramente inclinadas) getho ar gravedad ar mahyoni pa da disco ar volver jar thuhni nu'bu̲ ar flujo bí detiene. Instalación vertical impide ke ar disco cierre completamente, resultando jar reflujo.

Q2: Teme ra ar diferencia entre válvulas za̲tho ar asiento ne ar metal — sentado?

A: za̲tho — sentado (EPDM) válvulas proporcionan cero — fuga (apretado ar burbujas) njot'i ne operar mbo ja 'nar rango mpat'i 0 ° C da + 80 ° c; ya adecuados pa ar dehe, dehe residuales, ne productos químicos suaves. Metal — sentado (metal — ma metal) válvulas operan entre — 10 ° C ne + 350 ° C ne ya adecuados pa ar vapor, fluidos mextha ar mpat'i, ne ya nt'ot'e abrasivos, anke pe̲ts'i 'nar tasa fuga ligeramente mäs alta (Nsa̲di IV).

Q3: What is the maximum working pressure for this valve?

A: The standard configuration supports a maximum working pressure of PN10/PN16. Higher pressure ratings are available upon request; please contact our sales team for more information.

Q4: What is the difference between a swing check valve and a lift check valve?

A: Swing check valves use a disc that swings on a hinge; they offer low pressure drop (approx. 0.5 psi), must be installed horizontally, and are suitable for large-bore and low-pressure-drop applications. Lift check valves use a disc that lifts vertically; they offer superior sealing but have a higher pressure drop and can be installed either vertically or horizontally.

Cast iron swing check valve