8300 Double Offset High Performance Butterlfy valves for General services

Product Description

8300 SERIES

Severn’s 8300 Double Offset High Performance Butterfly Valve Series enables the disc to achieve a uniform 360° seal contact and to move into and break out from the seat with the minimum of wear. The seat design ensures low seating and breakout torque, resulting in smaller actuators and improved economy when selection from the various forms of actuation available. Across the size range, the 8300 Series has a variety of distinct features, all designed to reduce wear and control effectively to support durable performance, ensuring you meet your core imperatives of safe operations and minimum downtime.

Design Features:

• Self-energizing seat at low pressure
• Pressure energized at high pressure compensating for wear and temperature
• Seat energizer fully isolated by PTFE envelope
• Cavities minimised to avoid ingress of particulates
• Temperature ratings from -196°C to +230°C
• Shut off pressures up to 100 bar
• The quarter turn design ensures ease of actuation for both control and on/off duties
• Standard face to face dimensions to API 609 / ISO 5752 and B16.10 with non-standard dimensions available on request
• Valve size range – 2in (50mm) – 48in (1200mm) with larger sizes available on request
• Body pressure ratings up to 2500lb
• Can be manufactured in all commercially available metals in cast, forged or plate form
• Non-graphite options available for seawater service
• Anti-blowout stem as standard on #300 ratings and above

Benefits

• The double eccentric action enables the disc to achieve a uniform 360°C seal contact and to move into and break out from the seat with the minimum of wear
• The seat design ensures low seating and breakout torque
• Anti-cavitation trims and baffle plates available to reduce cavitation and noise issues
• Reliable leakage performance bubble tight shut off