Double Flanged Butterfly Valve, B148 C95800, 2 IN, 300 LB

EN 593 High-Performance Butterfly Valve, Double Offset, RPTFE Seat, 2 Inch/DN50, 300 LB, Gear Operation.

Valve Description

1862138 High-Performance Butterfly Valve
Design Standard: EN 593, API 609 Category B
Structure: Double Offset, Double Eccentric
Nominal Size: 2 Inch, DN50
Nominal Class: Class 300 LB, PN50
Seat Type: Soft Seat
Operation: Gear
Body Material: ASTM B148 C95800, ASTM A890 4A, ASTM A890 5A, ASTM A351 CF8M, ASTM A216 WCB, ASTM A351 CF8, Titanium.
Seat: RPTFE, PPL
End Connection: Double Flanged
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

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
Pressure Range: Class 150 LB - 300 LB
Operation: Manual (lever, gear), Pneumatic Actuator, Motor Actuator
Normal Diameter: 1/2 Inch - 48 Inch (DN15 - DN1200)
Working Temperature: -26°C - +120°C (180°C for PPL seat)
End Connection: Wafer, Lug, Flanged
Operation Types: Lever, gear, and pneumatic actuator options available.
Bosseal Valve advantages: Zero leakage, low torque, extended service life, low emissions, bi-directional flow, and fire-safe design.

Low Emission and Anti-Blowout Stem Design

The packing is made from pre-compressed flexible graphite rings, with precisely controlled stem and stuffing box surface roughness to ensure lower torque and enhanced sealing performance. A live-loaded gland flange allows for easy adjustment of packing compression. The space ring and gland design effectively prevent stem blowout, ensuring safety and reliability.



Low Emission and Anti-Blowout Stem Design

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Bosseal Valves (Suzhou) Co., Ltd.


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