BS EN 13397 Diaphragm Valves, BS 5156, CF8M, DN20, PN16, NPT

Key Specifications / Features

The BS EN 13397 Diaphragm Valves Manufacturer specializes in producing high-quality Weir Type Diaphragm Valves that adhere to BS 5156 standards. These valves feature an ASTM A351 CF8M stainless steel body, ensuring durability and corrosion resistance. With a DN20 (3/4 inch) size and rated at PN16, Class 150 LB, they are equipped with NPT threaded ends for secure and reliable connections.

Our Unlined Screwed End Diaphragm Valve, featuring a Weir Type Design with threaded ends as per BSPP, is ideal for general industrial applications. This handwheel-operated valve is constructed with a Ductile Iron body and bonnet, and is available with an EPDM or Neoprene Rubber diaphragm. The valve is coated in black epoxy and features screwed BSPP ends. It is manually operated with a handwheel and includes a yellow position indicator for easy monitoring.
The valve closure is achieved using an EPDM elastic polymer diaphragm, ensuring reliable sealing. The Weir Type design operates with linear motion, providing precise control. The bolted bonnet and seatless design offer an affordable and easy-to-maintain solution suitable for a wide range of applications. This bi-directional valve provides exceptional durability and reliability.
The clean design of the valve completely isolates the line media from the mechanical components, reducing the risk of contamination and wear. Screwed End Diaphragm Valves are widely used in the chemical and water treatment industries due to their low maintenance requirements and easy availability. These valves are also preferred in the mining, mineral processing, and fertilizer industries for their ability to control abrasive and corrosive media effectively.

Technical Specifications

» Size: 1/2-2 Inch, DN15-DN50
» Manufacturing & Design Standard : BS EN 13397 (BS 5156)
» Testing Standard : BS EN 12266-1 (6755-1)
» Face to Face Dimensions : As per Manufacturer Standard
» End Connection : Screwed to BSP  (BS 21 Parallel or Taper)
» Valve Bodies design pressure: PN16, Class 150 LB
» Material of Construction : Ductile Iron/S.G. Iron/GGG 40, ASTM A351 CF8, ASTM A351 CF8M
» Lining & Diaphragm: Natural, Neoprene, Hypalon, Butyl, EPDM, Silicone, PTFE Backed by EPDM or Neoprene Rubber
» Operation: Handwheel, Pneumatic, Electric