Rubber Lined Diaphragm Valve – Weir A Type
 
Weir Type Rubber Lined Diaphragm Valve are manufactured in accordance with international standards. Available with a wide range of construction materials and lining options, the quality of Rubber Lined Diaphragm Valve helps to deliver the full potential of a simple yet versatile and effective flow control design concept.
 
Valve bodies, linings and diaphragms in hundreds of different combinations offer tailored solutions to suit almost any corrosive or abrasive fluid. As the flowing media does not come into contact with the working components of the weir type diaphragm valve , so total service life is dramatically increased.
 
Technical Specifications  
 
1) Size : 15 mm to 300 mm
2) Design Standard : BS EN 13397 : 2002 (BS 5156)
3) Testing Standard : BS EN 12266-1 (BS 6755 Part 1)
4) Material of Construction :
a. Cast Iron (IS 210 Gr. FG 200/220/260)
b. Cast Carbon Steel (ASTM A 216 Gr. WCB)
c. Cast Stainless Steel – SS 304 / SS 304L (ASTM A 351 Gr.CF8 / CF3)
d. Cast Stainless Steel – SS 316 / SS 316L (ASTM A 351 Gr. CF 8M / CF3M)        e. Duplex Stainless Steel Grade 2205
5) Body Rubber / Plastic or Fluoropolymer Lining :
Hard Rubber (Ebonite), Natural, Neoprene, Hypalon, Butyl, EPDM
FEP (Fluorinated-Ethylene-Propylene), PFA (Per-Fluoro-Alkoxy)
PVDF (Poly-Vinyl-Dene-Fluoride)
6) Diaphragms :
a. Natural b. Neoprene c. Hypalon d. Butyl e. EPDM f. Silicone g. PTFE Backed by Neoprene Rubber
7) Stem or Spindle : AISI 410 / 304 / 316
8) End Connections : Flanged Ends to BS 10 Table (D, E, & F), DIN PN 10 & 16, ANSI B 16.5 Class 125 & 150, Butt Weld
9) Face to Face : EN 558-1 Series 7 (ex BS 5156) and EN 558-1 Series 1 (ex DIN 3202 Series F1)
 
Application Industries of Weir Type Rubber Lined Diaphragm Valve : Weir Type Unlined and Rubber Lined Diaphragm Valves are used extensively throughout many industries like :
 
Chemical Processing
Mining & Mineral Processing
Power generation
Water Treatment & Filtration
Electroplating
Steel Production
Food & Beverage
Paints & Coatings
Textiles & Leather
Semiconductors
Pharmaceuticals
Sugar
Pulp & Paper