Product Introduction
The Wafer Type Centerline Resilient Seated Butterfly Valve is a versatile, cost-effective solution widely used in water supply and drainage, HVAC, irrigation, municipal, and industrial piping systems. Designed with a concentric structure and an elastomer-lined seat, it provides excellent sealing performance, low torque operation, and easy installation and maintenance. The compact wafer-type design allows the valve to be mounted between flanges with minimal space requirements, making it ideal for applications where space and weight are critical factors.
Product Features & Advantages
Excellent Sealing Performance: The concentric design combined with a resilient seat ensures reliable bi-directional sealing, even under low pressure.
Compact and Lightweight: Wafer structure reduces installation space and overall weight, ideal for space-constrained systems.
Low Operating Torque: The elastic seat design minimizes friction between disc and seat, enabling easy manual or automated actuation.
Corrosion and Wear Resistance: Optional coating and material combinations extend valve service life in various media conditions.
Easy Installation and Maintenance: Can be mounted between various flange standards, with simple disassembly and replacement of internal parts.
Versatile Actuation Options: Compatible with manual, pneumatic, or electric actuators.
Technical Parameters
| Parameter | Specification |
| Size Range | NPS 2″ – 48″ / DN50 – DN1200 |
| Pressure Rating | Class 150 / 1.0 – 1.6 MPa |
| Temperature Range | -20°C – +120°C / -4°F – +248°F (depending on seat material) |
| Body Material | Ductile Iron, Carbon Steel, Stainless Steel, Duplex Stainless Steel, … |
| Disc Material | Ductile Iron (Epoxy Coated), Stainless Steel, Aluminum Bronze, Duplex Stainless Steel, … |
| Seat Material | EPDM, NBR, VITON, PTFE (customized available) |
| Stem Material | Stainless Steel (AISI 410 / 420 / 431) |
| Connection Type | Wafer type, suitable for ANSI, DIN, JIS, GB standards |
| Sealing Type | Soft-seated, bi-directional sealing |
| Operation | Lever, Gearbox, Pneumatic actuator, Electric actuator |
Applications
Municipal water supply and drainage
HVAC and building services
Industrial water treatment systems
Irrigation and agricultural pipelines
Chemical and light industry processes
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