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.
