API 609 Category B
Butterfly Valves, 30 Inch/DN750, Soft Seat, Gear Operation.
Valve Description
1862111 High-Performance Butterfly Valve
Design Standard: EN 593, API 609 Category B
Structure: Double Offset, Double Eccentric
Nominal Size: 30 Inch, DN750
Nominal Class: Class 300 LB, PN50
Seat Type: Soft Seat
Operation: Gear
Body Material: ASTM B148 C95800, Titanium, ASTM A351 CF8M, ASTM A890 5A, ASTM A890 4A, ASTM A216 WCB, ASTM A351 CF8.
Seat: RPTFE, PPL
End Connection: Lug
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
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
Operation: Manual (lever, gear), Pneumatic Actuator, Motor Actuator
Top Mounting: ISO 5211 top mounting compatibility available.
Operation Options: Lever, Gear, and Pneumatic Actuator.
Bosseal Valve Advantages: Zero leakage, low torque operation, long service life, low emissions, bi-directional sealing, and fire-safe design.
Double Eccentric Butterfly Valve Introduction
Compared to other valve types, it saves cost and space, offers a wider size range, faster operation, and minimizes wear between the disc and seat. This design ensures a longer cycling life and lowers the total cost of ownership. With two offsets, the valve has lower torque, extended service life, and is ideal for frequent operation. Bosseal's high-performance butterfly valve has passed a million-cycle test.
Main Features:
1st Offset: Reduces disc-to-seat contact before full closure, ensuring continuous seating engagement.
2nd Offset: Quickly disengages the disc seal upon opening, reducing friction and wear.
