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2025-03-12
What is a floating ball valve?
A floating ball valve is a valve in which the ball can float. Under the action of medium pressure, t...
The Soft Seal Butterfly Valve (also known as resilient seated butterfly valve) is designed for low to medium pressure flow control, offering bubble-tight shut-off, lightweight structure, and long service life. Featuring an elastomer-lined body or seat, it ensures safe, corrosion-resistant operation for general-purpose pipelines—especially in water treatment, HVAC, fire protection, irrigation, and light industrial systems.
Who Uses Soft Seated Butterfly Valves?
| User | User Profile | Key Priorities |
| Municipal Water Engineer | Manages potable and wastewater lines | Bubble-Tight Seal, Anti-Corrosion |
| HVAC System Integrator | Installs large-scale chiller/boiler systems | Low Torque, Easy Actuation |
| Fire Protection Contractor | Works on sprinkler loop isolation | UL/FM Approval, Quick Response |
| Irrigation Network Builder | Handles field valve installations | Easy Maintenance, UV & Weather Resistance |
Key Features & Benefits:
Double Flanged Ends (FF / RF)
Easy alignment and bolted connection to standard pipeline flanges.
Tight Shut-Off with Resilient Seat
Bidirectional sealing with options like EPDM, NBR, PTFE, or Viton.
Full 360° Disc Rotation
Suitable for throttling or full shut-off; low torque operation.
Actuator Mounting Ready (ISO 5211)
Compatible with manual gear, electric, or pneumatic actuators.
Bubble-Tight, Corrosion-Resistant Design
Ideal for water, air, gas, mild chemicals, and fire protection systems.
Technical Specifications
| Parameter | Specification |
| Size Range | 2” ~ 48” (DN50 ~ DN1200) |
| Pressure Rating | PN10 / PN16 / Class 150 |
| Body Materials | Cast Iron, Ductile Iron, WCB, SS304 |
| Disc Materials | Ductile Iron, SS304/316, Nylon-Coated, Bronze |
| Seat Options | EPDM, NBR, PTFE, Viton, Silicone |
| End Types | Wafer / Lug / Flanged |
| Design Standards | API 609, EN 593, ISO 5752, JIS B2032 |
| Testing | API 598, EN 12266-1, Bubble-Tight Class A |
Sample Product Code
SSBV-PN16-DI-EPDM-6IN-WAFER
(Soft Seal Butterfly Valve, PN16, Ductile Iron Body, EPDM Seat, 6 Inch, Wafer Type)
Typical Applications：
Potable Water Systems – Main line isolation, tank outlet control
Wastewater Treatment Plants – Sludge and clean water control
HVAC & Chilled Water Systems – Building-level zone valves
Fire Protection Networks – Loop isolation, pump discharge
Agricultural Irrigation – Field pipelines, filter bypass
General Industry – Low-pressure air, gas, or liquid lines
Why Choose Our Soft Seal Butterfly Valves?
Zero-Leakage Shut-Off in Low-Pressure Systems
Ideal for water, HVAC, and non-critical industrial use.
Low Torque = Smaller Actuator = Lower Cost
Energy-saving and space-efficient.
Easy Installation, Minimal Maintenance
Lightweight body, replaceable seat, long seal life.
Globally Trusted Quality
Installed in municipal pipelines, buildings, and utility systems across 30+ countries.
Need a Simple, Reliable Valve for Your Water System?
Request a Custom Quote Within 24 Hours
For more details about Zhejiang Yushun Valve Co., Ltd., please contact us:
Email: w584574148@gmail.com
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2025-03-12
