High Cycle, Zero Leak Ball Valves – D, DL, T, TL Series

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.|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.

In applications where bi-directional flow is required, Hoke D and T series valves exceed 50,000 cycles. Hoke ball valves can be ordered in brass, 316 stainless steel or Monel® materials with a manual handle as standard.

Body Material

316 Stainless Steel, Monel

Seat Material

PCTFE, PTFE

Seal Material

Graphite-filled PTFE/Elgiloy®

Washer Material

PTFE

Delta Back-up Ring Material

PTFE

O-ring Material

FKM(Viton®)

Stem Seal Type

Delta Stem Seal, Energized PTFE seal

A_in

2.40, 2.96, 3.06, 3.08, 3.11, 3.12, 3.19, 3.45

A_mm

61.0, 75.2, 77.7, 78.2, 79.0, 79.3, 81.0, 87.6

B_in

1.46, 1.72, 1.78, 1.82, 1.84, 1.89, 1.96

B_mm

37.1, 43.7, 45.2, 46.2, 46.7, 48, 49.8

C_in

0.94, 1.24, 1.28, 1.29, 1.30, 1.49

C_mm

, , , , ,

End Fitting

Gasketed, Welded

Proof Pressure Safety Factor

2:1

Cv Factor

0.23, 0.56, 0.80, 1.14, 1.44

Maximum Operating Pressure

6000 psig at 70° F (414 Bar at 21° C), 3000 psig at 70° F (207 Bar at 21° C)

Orifice_in

0.093, 0.187, 0.156, 0.234, 0.25

Orifice_mm

2.36, 3.96, 4.75, 5.94, 6.35

Connections - Inlet

1/4" Gyrolok, 1/8" Gyrolok, 1/2" Gyrolok, 1/4" NPT Female, 10 mm Gyrolok, 3/8" Gyrolok, 6 mm Gyrolok, 8 mm Gyrolok

Connections - Outlet

1/4" Gyrolok, 1/8" Gyrolok, 1/2" Gyrolok, 1/4" NPT Female, 10 mm Gyrolok, 3/8" Gyrolok, 6 mm Gyrolok, 8 mm Gyrolok

Actuation Method

Lever Handle, Oval Handle

Packaging Material

PTFE, PTFE & FKM (Viton®), PTFE Graphite Filled PTFE

Burst Pressure Safety Factor

4:1

Cycle Life_cycles

100000, 50000

Denotes Live-Load Seats

Bi-directional Flow, Live Loaded Seat (Uni-directional Flow)

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