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CATEGORY VIEW  - IS:778 GUN METAL/GLOBE VALVES/CHECK VALVES

 
 

IS:778-1984 GUN METAL VERTICAL CHECK VALVES : CLASS 1

S. No Size   DIMENSIONS IN MM   SPECIFICATION
333 15 mm   NOMINAL SIZE A B C D   Gun Metal Check Vales ISI Marked to IS:778-1984
334 20 mm   15 mm (1/2") 65 26 12 --   Integral Seat
335 25 mm   20 mm (3/4") 70 32 14 --   Screwed Female Ends to BSP
336 32 mm   25 mm (1") 75 39 14 --    
337 40 mm   32 mm (1.1/4") 85 49 17 --   HYDAULIC TEST PRESSURE
338 50 mm   40 mm (1.1/2") 95 55 17 --   Body - 1.5 MPa, Seat & Back Seat - 1.0 MPa
339 65 mm   50 mm (2") 110 68 22 --    
340 80 mm   65 mm (2.1/2") 130 85 23 --    
341 100 mm   80 mm (3") 145 98 25 --    
      100 mm (4") 190 127 29 --    



MATERIALS
PART NO. NAME OF PART MATERIAL SPECIFICATION
1 Body Gun Metal IS:318 LTB-2
2 Seat Gun Metal IS:318 LTB-2
3 Nut Brass IS:6912 FLB
4 Spring Phospher Bronze  
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