Page 203 - Parker - Republic/Manatrol (Hydraulic and Pneumatic Control Valves)

Catalog HY14-3000/US Plug Valves
Technical Information Series 744

General Description
Series 744 4-way plug valves can handle a variety of
media. The valve design requires low actuation torque
and has a very low pressure drop. Series 744 contains
a self-lubricating PTFE plug. The valve construction is
compact and shifting the flow direction of the valve will
not deadhead the pump.
Features
• Features high flow with low pressure drop.

• Compact construction.
• 17.3 Bar (250 PSI) service.
• No lubricaton neccessary.
• Low turning torque. Dimensions
Inch equivalents for millimeter dimensions are shown in (**)
Specifications
139.7
Service Hydraulic or pneumatic; available for other (5.50)
Applications service on special order 69.9
(2.75)
Pressure Liquid: 17.3 Bar (250 PSI)
Range
Air: 20 in hg. vacuum to
17.3 Bar (250 PSI)
F Proof: 20.7 Bar (300 PSI)

Internal Liquid: 2 DPM maximum 81.0
Leakage Air: 14 bubbles per minute (3.19)
40.5
Sizes NPT 1 1/4", 1 1/2" (1.59)
IST 20, 24
Ports NPT Pipe threads
IST Internal straight threads 151.6 1/4-20 NC, 4X s
CV Factor 1 1/4, 20 = 30 (5.97)
1 1/2, 24 = 32
Mounting Panel hole diameter 2 9/16"; maximum
thickness 1/2"; four 1/4-20UNC-3B tapped
holes; top cover plate drilled for bolt
clearance 96.8
Material Body Aluminum alloy 102.6 (3.81)
(4.04)
Bearings Delrin 41.1
Port Seals PTFE (1.62)
O-rings Synthetic rubber 77.5
(3.05)
Temperature -40°C to +107°C (-40°F to +225°F)
Range Higher temperatures on special order
Ordering Information

3000-F1.p65, dd Weight: 1.7 kg (3.7 lbs.
F4 Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio, USA