Double Eccentric Lug
Butterfly Valve, 28 Inch/DN700, 300 LB, ASTM B148 C95800 Body.
Valve Description
1862152 High-Performance Butterfly Valve
Design Standard: API 609 Category B, EN 593
Body Material: ASTM B148 C95800, ASTM A890 4A, ASTM A216 WCB, ASTM A890 5A, ASTM A351 CF8M, ASTM A351 CF8, Titanium.
Nominal Size: 28 Inch, DN700
Nominal Class: Class 300 LB, PN50
Seat Type: Soft Seat
Operation: Gear
Seat: RPTFE, PPL
End Connection: Double Flanged
Structure: Double Offset, Double Eccentric
Trim Material: ASTM A351 CF8, ASTM A351 CF8M, ASTM A890 4A, ASTM A890 5A, ASTM B148 C95800, Titanium
Face to Face: API 609, EN 593
Test and Inspection: API 598, API 609
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 - 48 Inch (DN15 - DN1200) |
| Working Temperature: |
-26°C - +120°C (180°C for PPL seat) |
| Pressure Range: |
Class 150 LB - 300 LB |
| Operation: |
Manual (lever, gear), Pneumatic Actuator, Motor Actuator |
| End Connection: |
Wafer, Lug, Flanged |
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.
