API 609 Cast Steel Butterfly Valve Class 150

Description

The API 609 Cast Steel Butterfly Valve is a high-performance quarter-turn valve designed for isolating and regulating fluid flow in pipelines. Preferred for its compact design, lightweight construction, and cost-effectiveness, this valve features a precision profile disc and a phenolic-backed seat for bubble-tight shut-off. Available in Wafer and Lug designs, it is an ideal alternative to gate and ball valves for low-to-medium pressure applications across water treatment, HVAC, and chemical processing industries.

Technical Specifications:

• Pressure Class: Class 150 (ASME B16.34)
• Size Range: NPS 2″ to 24″ (DN50 to DN600)
• Applicable Medium: Water, Steam, Oil, Gas, and various process fluids
• Operating Temperature: -29°C to 200°C (RPTFE Seat) / up to 425°C (Metal Seat)

Main Parts and Materials:

Key Product Features:

1. Compact & Lightweight: Saves space and reduces structural support requirements compared to traditional gate or globe valves.
2. Quick Operation: Requires only a quarter-turn motion for fast opening and closing, and is easily automated with electric or pneumatic actuators.
3. Precision Profile Disc: Engineered to provide bubble-tight shut-off while minimizing torque and extending seat life.
4. Phenolic Backed Seat: Non-collapsible, stretch-resistant, and blow-out proof design ensures reliable sealing and is field-replaceable.
5. Versatile Actuation: Standard actuator flange accommodates manual handles, gear operators, electric actuators, and pneumatic actuators.
6. Low Maintenance: Minimal moving parts and stem bushings reduce friction and prevent seizure, lowering long-term maintenance costs.

Applications:

Additional information