AP Tech - AP3625SM - 1/4” Springless Diaphragm Valve, 3,000 psig, Lever Actuated

The AP Tech AP3625SM is a high-purity manual diaphragm valve engineered for demanding gas delivery applications. Featuring a 1/4-turn lever actuation, this valve offers precise control and clear visual indication of open/closed status. Its springless design ensures ultra-clean operation, making it ideal for semiconductor, pharmaceutical, and specialty gas systems.

Key Features:

• Model: AP3625SM

• Brand: AP Tech (Advanced Pressure Technology)

• Valve Type: Manual diaphragm valve, springless design

• Actuation: 1/4-turn lever with lockout/tagout (LOTO) compatibility

• Flow Coefficient (Cv): 0.29

• Operating Pressure: Vacuum to 3,000 psig (207 bar)

• Proof Pressure: 4,000 psig (276 bar)

• Burst Pressure: 8,000 psig (552 bar)

• Operating Temperature Range: -40 °C to +71 °C

• Internal Volume: 0.06 in³ (1.07 cm³)

• Leakage Rates:

  • Across Seat: ≤ 4 × 10⁻⁸ sccs He at 250 psig

  • Outboard: ≤ 2 × 10⁻⁹ sccs He at 250 psig

  • Inboard: ≤ 2 × 10⁻¹⁰ sccs He

• Wetted Materials:

  • Body: 316L VAR stainless steel (electropolished and passivated)

  • Diaphragm: Elgiloy®

  • Seat: PCTFE (Vespel® optional)

• End Connections: 1/4” or 3/8” face seal (MV4/FV4) or tube weld (TW4/TW6)

• Surface Finish: 15 µin Ra max standard; optional finishes down to 5 µin Ra max

• Mounting Options: Panel mount compatible

• Applications: Ideal for high-purity gas systems in semiconductor manufacturing, pharmaceutical production, and specialty gas distribution