Top-entry ball valves
Overview
Category: Quarter-turn valves
Product line: Memoryseal® ball valves
- Size range(s)
- NPS 1/2 - 4
(DN 15 - 100) - Pressure rating
- ASME Classes 150 - 600
- Standard connections
- Flanged, Threaded, Socket weld, Butt weld
Features and benefits
Velan Memoryseal® top-entry resilient-seated ball valves can be easily serviced or replaced in-line while the integrity of the valve is not affected. The exclusive Memoryseal seats compensate automatically for wear and fluctuations of pressure and temperature. Standard valves with MPTFE seats and graphite packing can handle steam service up to 250 psig (17.2 bar). Valves with carbon graphite filled seats are suitable for steam up to 450 psig (31 bar). These rugged, versatile, resilient-seated ball valves can meet NACE specifications.
Memoryseal top-entry ball valves are compliant with API 608 and dual qualified to API 641 and ISO 15848-1 fugitive emissions standards.
