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For remote actuation , factory-assembled Hoke Space Saver™ Actuators are available. D, DL, T and TL series valves can be ordered with welded end fittings to prevent accidental disassembly or with gasketed end fittings, if valve rebuild becomes necessary.

Hoke's DL/TL ball valves are uni-directional, high cycle valves that exceed 100,000 cycles with zero seat leakage. Depending on seat, seal, and washer material selected.
Unit of Measure

Specifications

End Fitting to Body Connection

 Gasketed

Connections - Inlet

 1/4" NPT Female

Connections - Outlet

 1/4" NPT Female
Body Material1 Monel

Cv Factor

 1.44

Orifice

 0.25 in6.35 mm

Maximum Operating Pressure

 3000 psig at 70° F (207 Bar at 21° C)

Operating Temperature Range

 -40 to +350 ºF-40 to +177 ºC

A

 2.40 in61.0 mm

B

 1.46 in37.1 mm

C

 0.94 in23.9 mm

Cycle Life

 100000 cycles

Proof Pressure Safety Factor

 2:1

Burst Pressure Safety Factor

 4:1

Actuation Method

 Lever Handle

Packaging Material

 PTFE Graphite Filled PTFE

Seat Material

 PTFE

Washer Material

 PTFE

Delta Back-up Ring Material

 PTFE

Seal Material

 Graphite-filled PTFE/Elgiloy®

Stem Seal Type

 Energized PTFE seal

Denotes Live-Load Seats

 Live Loaded Seat (Uni-directional Flow)

Features & Benefits

N/A Delta stem seal (D & DL)

  • Improved cycle life
  • No packing adjustment required
  • Rated to 6000 psig (414 bar)
  • Low operating torque for ease of operation

Spring-loaded PTFE seal (T& TL)
  • Compensates for wear and thermal cycling with zero leakage, providing excellent durability and reliability.

Choice of end-fittings for versatility
  • 70 Series - welded
  • 71 Series - gasketed

Live-loaded seats (DL & TL)
  • Compensates for wear and thermal cycling with zero leakage, providing excellent durability and reliability.
  • Ensures leak-tight performance over entire pressure range simplifying ball valve specification and installation, saving time and expense.

Static -grounded stem
  • Prevents static discharge for added safety

Quarter-turn handle
  • Quick on/off simplifies operation and saves time.
  • Directional handle provides quick visual indication of orifice, improves operator efficiency and safety.
  • Special High Tolerance NPT Thread
  • 1 Contact us for other materials