Key Specifications / Features

Model no. : 1862191

As a double offset wafer butterfly valve factory in China, we produce high-quality valves that meet API 609 Category B standards. Our 20-inch (DN500) valves feature a soft RPTFE seat and are constructed from durable ASTM A890 4A material for superior corrosion resistance. Equipped with a 17-4PH stainless steel stem, these valves are rated for 300 LBS, ensuring reliable performance in demanding industrial applications. The double offset design enhances sealing and flow control. As a leading butterfly valve manufacturer in China, we deliver products that ensure long-lasting, efficient operation.


Detail Information

API 609 Cat B Butterfly Valves, Double Offset, 20 Inch/DN500, Soft Seated, Gear Operation.

Valve Description

1862191 High-Performance Butterfly Valve 
Design Standard: EN 593, API 609 Category B
Nominal Size: 20 Inch, DN500
Nominal Class: 300 LBS, PN50
Seat Type: Soft Seat
Operation: Gear
Structure: Double Offset, Double Eccentric
Body Material: ASTM A890 4A, ASTM A351 CF8, ASTM B148 C95800, Titanium, ASTM A890 5A, ASTM A216 WCB, ASTM A351 CF8M.
Seat: RPTFE, PPL
End Connection: Wafer
Face to Face: API 609, EN 593
Test and Inspection: API 598, API 609
Trim Material: ASTM A351 CF8, ASTM A351 CF8M, ASTM A890 4A, ASTM A890 5A, ASTM B148 C95800, Titanium
Key Features: Long working life for frequent operation (million cyclings), Lower torque, Replaceable seat, Tight sealing, Excellent control characteristics, Bi-direction sealing under full pressure, fire safe seat available.

Product Range

Body Material: Carbon Steel, Stainless Steel, Duplex Steel, Aluminum Bronze, Titanium
Normal Diameter: 1/2 Inch - 48 Inch (DN15 - DN1200)
Pressure Range: Class 150 LB - 300 LB
Working Temperature: -26°C to +120°C (180°C for PPL seat)
End Connection: Wafer, Lug, Flanged(FF, RF, RTJ)
Operation: Manual (lever, gear), Pneumatic Actuator, Motor Actuator


Double Offset Butterfly Valves

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About Us
Founded in 2013, Bosseal Valve is a professional valve manufacturing company in Suzhou, China. We mainly supply Industrial Ball Valves, Gate Valves, Globe Valves, Check Valves, Butterfly Valves, Plug VaIves, and Strainers designed and manufactured according to API, ASME, ISO, DIN, BS, EN standards.
 
Our Contacts
Building 2, NO.59, Songshan Road, SND, Suzhou, China