NSW 12" Rubber Seat Flanged Butterfly Valve – Class 150, Ductile Iron Body, EPDM Seat

Product Details

Quantity

500
Availability (Lead Time)

4-6 Weeks
Product Location

China
Condition
OEM

WENZHOU NEWSWAY VALVE CO. LTD
Equipment code

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Short Description

12-inch Class 150 concentric rubber-seated butterfly valve with ductile iron body, EPDM seat, and blowout-proof stem. Designed for zero-leakage performance and low-torque actuation in industrial flow systems.

Description

NSW 12" Rubber Seat Flanged Butterfly Valve – Class 150, Ductile Iron Body, EPDM Seat

The NSW 12" Class 150 Rubber Seat Butterfly Valve is engineered for efficient and reliable shutoff in fluid systems handling water, air, gas, and mild chemicals. Featuring a ductile iron body and resilient rubber seat (EPDM, NBR, or Viton optional), the valve provides bi-directional sealing and zero-leakage performance. Designed per API 609 and ASME B16.34, this valve features a concentric disc and stem arrangement, available in pin or non-pin stem designs. Its low-torque, self-cleaning seat design ensures reduced actuator load, extended seat life, and improved sealing. Suitable for manual or automated operation, the valve includes an ISO 5211 top flange for direct mounting of gear operators or actuators. Ideal for HVAC, water treatment, fire protection, chemical processing, and general utility pipelines.

Specifications:

– Valve Type: Rubber Seat Flanged Butterfly Valve
– Size: 12 inch (Available: NPS 2" to NPS 48")
– Pressure Class: 150# (Also available up to Class 2500)
– Body Material: Ductile Iron (Optional: Cast Iron, A216 WCB, WC6, CF8, CF8M, Monel, Hastelloy, etc.)
– Disc Material: Stainless Steel, Ductile Iron, or WCB (Coating Optional)
– Seat Material: EPDM (Optional: NBR, Viton, Natural Rubber)
– Design Type: Concentric
– Stem Design: Blowout-proof, Pin or Non-Pin
– End Connection: Flanged (ASME B16.5, B16.47), BW (ASME B16.25), Threaded (ASME B1.20.1), AWWA C207
– Face-to-Face: API 609, ASME B16.10
– Top Mount: ISO 5211
– Design Standard: API 609, AWWA C504, ASME B16.34
– Test & Inspection: API 598, Optional: Fire Safe API 6FA / API 607
– Certifications: NACE MR-0175, MR-0103, ISO 15848
– NDT: PMI, UT, RT, PT, MT
– Temperature Range: -20℃ ~ +200℃ (-4℉ ~ +392℉)
– Operation: Manual (lever or gear), Electric or Pneumatic Actuator

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Technical Details

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