LUOYANG DATANG ENERGY TECH CO.,LTD
EPDM Soft-Seal Cast Iron Wafer Butterfly Valve | Industrial Control Valve | DN50-DN1000
PRODUCT PARAMETERS
Descripción
Product Overview
The EPDM Soft-Seal Cast Iron Wafer Butterfly Valve is a high-performance flow control device designed for reliable on/off and throttling service in water, air, steam, asete, and gas pipelines. Featuring a durable cast iron body with an EPDM rubber liner that fully encapsulates the disc sealing area, this valve provides bubble-tight shut-off and excellent corrosion resistance. The wafer-style body allows for compact installation between flanges, making it ideal for space-constrained piping systems. Available in sizes from DN50 to DN1000 and configurable with manual lever, worm gear, or electric/pneumatic actuators, this valve is suitable for a wide range of industrial, municipal, and commercial applications. With OEM/ODM customization support and a 1-year warranty, it is a cost-effective and reliable solution for flow control in water treatment, HVAC, chemical processing, and power generation.
EPDM Soft-Seal Cast Iron Wafer Butterfly Valve
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | EPDM Soft-Seal Cast Iron Wafer Butterfly Valve |
| Body Material | Cast Iron (GG25 / ASTM A126 Class B) |
| Disc Material | Cast Iron / Ductile Iron / Stainless Steel (Optional) |
| Seal / Liner Material | EPDM (Ethylene Propylene Diene Monomer) Rubber |
| Shaft / Stem Material | Stainless Steel (2Cr13 / SS304 / SS316) |
| Valve Type | Wafer Butterfly Valve / Concentric Design |
| Size Range | DN50 – DN1000 (2″ to 40″) |
| Nominal Pressure | PN10 / PN16 (Customizable) |
| Temperature Range | -20°C to +120°C (EPDM seal) |
| Media | Water, Air, Steam, Petróleo, Gas |
| Operation | Manual Lever Handle (standard) / Worm Gear / Electric / Pneumatic (Optional) |
| Design Standard | API 609, EN 593, BS 5155, MSS SP-67 |
| Flange Standard | EN 1092-2, ASME B16.5, GB/T 9119 |
| Top Flange | ISO 5211 (for actuator mounting) |
| Customization | OEM, ODM |
EPDM Soft-Seal Cast Iron Wafer Butterfly Valve
Key Features
- Durable Cast Iron Body
- EPDM Soft Seal for Bubble-Tight Shut-Off
- Wafer-Type Compact Design
- Wide Size Range – DN50 to DN1000
- Versatile Operation Options
- Multi-Media Compatibility
- ISO 5211 Mounting Standard
- OEM / ODM Customization Support
Aplicaciones
- Water Treatment System
- HVAC Systems
- Industrial Process Lines
- Petróleo & Gas Pipelines
- Power Generation
EPDM Soft-Seal Cast Iron Wafer Butterfly Valve
FAQ
Q1: What is the difference between EPDM soft sealing and PTFE hard sealing?
A: EPDM is a soft rubber seal that provides bubble-tight sealing and offers good resistance to water, steam, and mild chemicals, with a temperature range of -20°C to +120°C. PTFE hard sealing offers superior chemical resistance and a wider temperature range (up to +230°C), though its sealing performance is slightly lower than that of EPDM. The choice depends on the medium type and operating temperature.
Q2: What is the difference between wafer-style and lug-style butterfly valves?
A: Wafer-style butterfly valves are installed between two flanges using through-bolts; they are easy to install, lightweight, and cost-effective, making them suitable for general applications. Lug-style butterfly valves feature threaded lugs on both sides, allowing them to be bolted individually to flanges; this enables the downstream piping to be disconnected without draining the system, facilitating maintenance.
Q3: Can this butterfly valve be used for steam?
A: Hä. Butterfly valves with EPDM seals are suitable for saturated steam (up to +120°C). For higher-temperature steam applications, we recommend selecting a configuration with PTFE or metal seals. Please specify the steam operating conditions when placing your order.
Q4: Can the valve body material be upgraded to ductile iron or stainless steel?
A: Hä. We offer options to upgrade the valve body material to ductile iron (for higher strength and impact toughness) or stainless steel (for superior corrosion resistance). Please specify your requirements when placing your order.
EPDM Soft-Seal Cast Iron Wafer Butterfly Valve
Embalaje ne envío
Packing depends on the product type and quantity. Options include coiling, rollos, embalaje ar paquete, wooden crates, or boxes. Shipment can be arranged by sea, ferrocarril, air, or as per customer’s request.
Perfil ar empresa
LUOYANG DATANG ENERGY TECH CO., LTD is a professional industrial valve supplier, dedicated to providing reliable flow control solutions for fire protection, HVAC, water treatment, and industrial piping systems worldwide. All products are manufactured to international standards with UL/FM, CE, and ISO 9001 certifications. With over 10 years of experience, a modern facility of 80,000 m², ne 200+ professional employees, we serve customers in 10+ countries with quality products, competitive pricing, and reliable delivery.
Payment Terms
T/T, L/C at sight, Western Union & PayPal, etc.
Contact Us
Should you have any inquiries regarding valves and pipe fittings, please do not hesitate to contact us!
Tel / WhatsApp / WeChat: +86 183 3790 0677
Email: sales@pipesandfittings.net
EPDM Soft-Seal Cast Iron Wafer Butterfly Valve
