IS025 Gun Metal / Bronze Vertical Check Valve Class-1 (Screwed)

IS 025
  • Item Code: IS 025
  • Pressure Rating: CL-1
  • Testing Standard: IS 6157
  • Size Range: 15mm to 100mm
  • Product Standard: IS 778

Suitable For

IS 025
IS 025

Material Specification

IS 025
P. No. NAME OF PART MATERIAL SPECIFICATION
  1 BODY LEADED TIN BRONZE IS:318 Gr. LTB2
  2 NUT EXTRUDED BRASS IS:319 (HALF HARD)
  3 WASHER BRASS  
  4 SPRING PH. BRONZE IS:7608
  5 DISC GUN METAL / HIGH TENSILE BRASS IS:318 Gr. LTB2 / IS:6912 Gr. FHTB1
IS 025

Dimensional Data

IS 025
SIZE (mm) 15 20 25 32 40 50 65 80 100
L 65 70 75 85 95 110 130 145 190
Rp 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 4"
Item Code IS025 IS025 IS025 IS025 IS025 IS025 IS025 IS025 IS025

Principle Features

  • Design std.: IS:778.
  • Single piece design.
  • Screwed female parallel threads to IS:554.
  • Permits flow in one direction and close automatically if the flow reverses.
  • Spring-loaded design allow installation in both horizontal and vertical pipeline.
  • The design conceived for operation in upward flow only.
  • Always install vertically with pressure below the seat and inlet end down.
  • Disc is precisely guided at top and bottom, assuring accurate seating.
  • Excellent choke for suction lines and general service.

PRESSURE RATING: CL-1 

TEST PRESSURE (HYDROSTATIC) :
CLASS-1
BODY SEAT
1.5 Mpa (217.5 psig) 1.0 Mpa (145 psig)
 

END CONNECTION

  • Flange as per IS:778 Class-I.

UTILISATION & SERVICE

  • "LEADER" GUN METAL vertically Lift Check valves are suitable for above-ground & underground installations.
  • Best suited for portable water, treated fresh water, neutral liquids, Air & some gases.

WORKING PRESSURE

  • Maximum Working Pressure: (CLASS-I) 10 Bar.
  • See Pressure/Temperature Diagram.

TEMPERATURE LIMITS

  • Maximum working temperature: 45°C.
  • See Pressure/Temperature Diagram.

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