Micro Valves Engineering Co.


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Glandless Piston Valve


Glandless Piston Valve

Glandless Piston Valve was Innovated by replacing the disk and seat of a conventional globe valve with a cylindrical piston and two resilient, replaceable sealing rings. Constant research and development have resulted in sealing rings that provide the piston valve with an extraordinary ability to seal line pressure and prevent leakage to the atmosphere.

Independent testing laboratories have subjected piston valves to API fire tests and Helium leak tests. The piston valve has out-performed other generic valve types in these tests and these results have been consistently confirmed by extraordinary performance in customer installations.



Test Pressure (KG/CM2)

Hydrostatic Air
Body Seat Seat
31 21 7

 

Parts Material
Body ASTM A 216 GR. WCB
Bonnet ASTM A 216 GR. WCB
Spindle AISI 410 / 304
Piston AISI 410 / 304
Yok Bush G.M. / Bronze
Upper Valve Ring Equivalent KOR-P
Lower Valve Ring Equivalent KFK
Stud / Nut ASTM A193 B7 / 2H
Handwheel C.I.

 


Dimensions

Size L H
15 130 105 100
20 150 120 120
25 160 130 140
32 180 155 160
40 200 185 180
50 230 210 200
65 290 300 250
80 310 325 250
100 350 370 280
150 480 470 360