ESCO
Pneumatically operated 3-Port ON-OFF Piston Valves


Our Piston Valves are available in a size range of 1/4" to 1.1/2"
and with Screwed,
Piston Valves Socket-Weldable or Flanged
end connections. They are designed for long and trouble-free service with minimum maintenance, their salient features being :

  • Efficient sealing arrangement
  • Escolyte on Stem and inside the Cylinder
    imparts surface hardness and excellent
    resistance against wear, erosion and corrosion
  • Easy replaceability of Disc Rings
  • Spring loaded U-shaped PTFE Piston Ring
  • V-shaped gland packings of filled grade of
    PTFE for better wear resistance
  • Gland packings are spring loaded and
    self-adjusting
  • Completely enclosed Assembly
    to avoid dirt and scale entering into the sealing area

 

Pneumatically operated

DIMENSIONS (in mm) & WEIGHT (in kg.) (approx)
Size 1/4".1/2" 3/4" 1" 1-1/4" 1-1/2"
A 50 66 71 91 91
B 163 193 234 249 301
C 85 110 120 145 150
Weight 2.7 4.3 6.8 9.8 15.6
SR.
NO.
Name of Part Material Qty.
1. BODY S.S 1
2. YOKE STAND C.I. 1
3. CYLINDER C.I. 1
4. STEM S.S. 1
5. LOWER SEAT FLANGE S.S. 1
6. U-NUT S.S. 1
7. GUIDE WASHER S.S 1
8. DISC ADAPTOR S.S 1
9. RING WASHER G.M. 1
10. GLAND AND GLAND LOCK G.M. 1
11. GLAND NUT M.S. 1
12. GUIDE BUSH G.M. 1
13. PISTON C.I. 1
14. SET RING PLATE M.S. 1
15. TENSION BOLT S.S. 1
16. SOCKET SCREW BOLT FOR BODY M.S. 4
17. SOCKET SCREW BOLT FOR YOKE M.S. 2
18. T-BOLT M.S. 1
19. SOCKET SCREW SET BOLT M.S. 1
20. SCREW BOLT FOR PISTON M.S. 3
21. PACKING SPRING S.S 1
22. SPRING SPRING STEEL 1
23. O-RING RUBBER 1
24. PISTON RING PTFE 1
25. DUST SEAL PTFE 1
26. ADAPTOR-A PTFE 1
27. M-TYPE PACKING CFT 3
28. DISC RING-A CFT 1
29. DISC RING-B CFT 1
30. LOWER SEAT GASKET G.M. 1
31. LIFT RING GUAGE S.S. 1
32. PISTON SPRING S.S. 1

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