Panoramica di u produttu

UValve de retenue à bascule en fonte is a reliable, automatic non-return valve designed to prevent reverse flow in water, acque di scarico, è sistemi di tubazioni industriali. 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, compressori, 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 normi, assicurendu a cumpatibilità cù i sistemi di tubazioni internaziunali. 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, supply d'acqua & drenaje, wastewater treatment, irrigazione, HVAC, fire protection, and chemical & energy industries. The fusion-bonded epoxy coating provides superior corrosion protection for long service life. Cù supportu di persunalizazione OEM / ODM, it is the trusted choice for engineers and plant operators worldwide.

Cast iron swing check valve

Specificazioni tecniche

Cast iron swing check valve

Funzioni chjave

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

Applicazioni

1. Fornitura d'acqua & Distribution
2. Wastewater Treatment
3. Sistemi di prutezzione di u focu
4. Industrial Process Lines

Imballaggio è spedizione

L'imballu dipende da u tipu è a quantità di u produttu. Options include wooden crates or carton boxes with proper protection for flange faces. A spedizione pò esse organizata per mare, ferrovia, aria, o secondu a dumanda di u cliente.

Profilu di a cumpagnia

Luoyang Datang Energy Tech Co., Ltd hè un fornitore di valvule industriale prufessiunale, dedicated to providing reliable flow control solutions for water treatment, HVAC, fire protection, è sistemi di tubazioni industriali in u mondu sanu. Tutti i prudutti sò fabbricati à standard internaziunali cù ISO 9001 certificazioni. Cù sopra 10 anni di sperienza, un stabilimentu mudernu di 80,000 m², è 200+ impiegati prufessiunali, servemu i clienti in 10+ paesi cù prudutti di qualità, prezzu cumpetitivu, è consegna affidabile.

Cast iron swing check valve

Termini di pagamentu

T/T, L/C à vista, Western Union, PayPal, Apple Pay, Google Pay, Carta di creditu, ecc.

FAQs | Domande Frequenti

Q1: Can a swing check valve be installed vertically?

A: Innò. Swing check valves must be installed horizontally (or in slightly inclined piping) because gravity is required for the disc to return to the seat when flow stops. Vertical installation prevents the disc from closing completely, resulting in backflow.

Q2: What is the difference between soft-seated and metal-seated valves?

A: Soft-seated (EPDM) valves provide zero-leakage (bubble-tight) shut-off and operate within a temperature range of 0°C to +80°C; they are suitable for water, fognatura, and mild chemicals. Metal-seated (metal-to-metal) valves operate between -10°C and +350°C and are suitable for steam, high-temperature fluids, and abrasive media, though they have a slightly higher leakage rate (Class 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