The Unlined Weir Type Diaphragm Valve with screwed BSPP PN16 connections is built for compact industrial systems that need dependable flow isolation. It combines a ductile iron body with an EPDM diaphragm to provide a reliable seal without metal-to-metal contact.

Its screwed BSPP threaded ends make installation and removal straightforward, which is useful where space is restricted or where regular access is needed. This valve is suited to lower-pressure duties where practical maintenance and consistent shut-off are important.

Features

• A flexible EPDM diaphragm provides tight shut-off and supports accurate throttling for controlled flow regulation.
• Screwed BSPP connections give the valve a compact installation footprint and simplify fitting into a range of industrial pipework layouts.
• The ductile iron body, rated to PN16, offers durability for demanding service conditions including water treatment and chemical dosing systems.
• A design with fewer moving parts helps reduce maintenance demands, supporting easier servicing and less downtime over time.
• The valve is supplied with a manual handwheel for direct operation, with lever or gearbox actuation options available for specific requirements.

Applications

This diaphragm valve operates across a temperature range of -10 °C to +120 °C. It is suitable for use in potable water, chemical feed, and compressed air systems.

The weir type design also helps limit wear when handling particulates or slurries, making it a practical option where a dependable seal is needed without metal-to-metal seating surfaces.

Technical Information

For guidance on valve standards, refer to the BSI Group, which publishes relevant British and international standards for industrial valves. You can also view related products in our Diaphragm Valves collection.

Before installation, check that the diaphragm material is compatible with the intended service media to help achieve the best possible service life.