API 609 Cat B ASTM A890 4A Butterfly Valves, 300 LB, 20 IN

Key Specifications / Features

Model no. : 1862401

We specialize in producing high-performance double-offset butterfly valves designed to meet API 609 Category B standards. Our 20-inch valves, made from robust ASTM A890 4A duplex stainless steel, are equipped with a Monel K500 stem and RPTFE soft seat for exceptional sealing. Rated at Class 300 LB and featuring flanged ends, these valves deliver reliable performance in even the most demanding industrial conditions. Engineered for durability and efficiency, they are ideal for applications requiring long service life, superior sealing, and consistent operation.

Detail Information

Soft Seated Butterfly Valves, API 609 Category B, 20 Inch, 300 LB, Double Offset.

Valve Description

1862401 High-Performance Butterfly Valve 
Design Standard: EN 593, API 609 Category B
Nominal Size: 20 Inch, DN500
Nominal Class: Class 300 LB, PN50
Seat Type: Soft Seat
Operation: Gear
Seat: RPTFE, PPL
End Connection: Double Flanged
Body Material: ASTM A890 4A, ASTM A351 CF8M, ASTM A890 5A, ASTM A216 WCB, Titanium Alloy, ASTM B148 C95800, ASTM A351 CF8.
Face to Face: API 609, EN 593
Structure: Double Offset, Double Eccentric
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

1. Long lifespan for high-frequency operation (up to a million cycles).
2. Reduced torque for smoother operation.
3. Replaceable seat for easy maintenance.
4. Reliable tight sealing performance.
5. Superior control characteristics.
6. Bi-directional sealing under full pressure.
7. Fire-safe seat option available.

Product Range

Body Material: Carbon Steel, Stainless Steel, Duplex Steel, Aluminum Bronze, Titanium Alloy.
Normal Diameter: 1/2 - 48 Inches (DN15-DN1200)
Pressure Range: Class 150, 300 LB
Working Temperature: -26°C to +120°C (180°C for PPL seat)
End Connection: Wafer, Lug, Flanged
Operation: Manual (lever, gear), Pneumatic Actuator, Motor Actuator
Seat Type: PTFE, RPTFE, PPL(for higher temperature), RPTF

 

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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.
 
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