Semiconductor Industry


   

1/4 Turn Springless Diaphragm Valve

Series AP 3625/4625

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Features:
  • Stainless steel 316L VAR secondary remelt or Hastelloy® alloy C-22® construction
  • 1/4 turn lever
  • 15 µin. surface finish; (10, 7 and 5 µin. optional)
  • Metal to metal seal to atmosphere
  • Replaceable PCTFE seat (Vespel® optional)
  • LOTO compatible, PL 225
  • Available in surface mount, multiport or monoblock
  • Optional handle sizes and colors
  • Low internal volume and surface area
Operating Parameters - all valves:
Inlet pressure                   AP 3625vacuum to 3,000 psig (207 bar)
AP 4625
vacuum to 250 psig (17 bar)
Outlet pressure                AP 3625vacuum to inlet pressure
AP 4625
vacuum to inlet pressure
Proof pressure                   AP 36254,000 psig (276 bar)
AP 4625
1,000 psig (69 bar)
Burst pressure                   AP 36258,000 psig (552 bar)
AP 4625
8,000 psig (552 bar)

Other Parameters:
Inlet /outlet connectors1/4 or 3/8 inch face seal or tube weld
Flow coefficient (Cv)  AP 36250.29, XT = 0.6
AP 4625
0.5, XT = 0.6
Internal volume0.06 in3 (1.07 cm3)
Operating temperature-40° to +160°F (-40° to +71°C)
Surface finish15 µin. (0.4 µm) Ra max standard;
10 µin (0.25 µm); 7 µin (0.18 µm); and 5 µin (0.13 µm) optional
Inboard leakage2 x 10-10 sccs
Outboard leakage2 x 10-9 sccs He at 250 psig inlet pressure
Leakage across seat4 x 10-8 sccs He at 250 psig inlet pressure



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