Reducing Valves 1PD20 - Integrated Hydraulics - (Version JPG) - PDF Catalogue | Technical Documentation

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Relief valve, Flow regulator, Flow divider, Check valve, Hydraulic check valve

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1PD SERIES PRESSURE REDUCING VALVE DIRECT ACTING WITH REVERSE RELIEF

1PD20

SLIDING SPOOL TYPE

INLET (2) TANK (3)

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APPLICATION

To provide an adjustable regulated pressure which is lower than supply pressure, as when more than one operating pressure is required from one pump. Direct acting models are suited to lower flow applications and regulated pressures to 140 bar (2000 psi). This valve also acts as a relief valve, relieving from regulated line to tank if shock or surge pressures occur in the regulated line.

OPERATION

Normally open, the valve throttles or closes to maintain constant pressure in the regulated line. As in the other direct acting valves, the spring force holds the valve open.

FEATURES

Hardened steel working parts are individually match ground to assure long life, reliability and high accuracy.

SPECIFICATIONS

Figures based on: Oil Temp = 40°C Viscosity = 40 cSt


	Rated Flow	30 litres/min (8 US GPM)
	Max Setting	Up to 140 bar (2000 psi)
	Max Inlet Pressure	350 bar (5000 psi)
	Max Differential	210 bar (3000 psi) between 1 and 2
	Cartridge Material	Working parts hardened and ground steel. External surfaces zinc plated
	Body Material	Standard aluminium (up to 210 bar*) Add Suffix '377' for steel option
	Mounting Position	Unrestricted
	Cavity Number	A5572 (See Section 17)
	Torque Cartridge into Cavity	60 Nm (44 lbs ft)
	Weight	1PD20 0.24 kg (0.53 lbs) 1PD25 1.15 kg (2.53 lbs) 1PDC25 1.25 kg (2.75 lbs)
	Seal Kit Number	SK339 (Nitrile) SK339V (Viton)
	Recommended Filtration Level	BS5540/4 Class 18/13 (25 micron nominal)
	Operating Temp	-20°C to +90°C
	Leakage	35 millilitres/min nominal
	Nominal Viscosity Range	5 to 500 cSt

PLUNGER ADJUSTMENT RANGE

PLUNGER STROKE - INCHES

0.04 0.08 0.12 0.16 0.20 0.24


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80 (176)

70 (154) 60

(132) 50

160

(2320) 140

(2030) 120

(1740) 100 I)

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(22)

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PLUNGER STROKE - MILLIMETRES

*For applications above 210 bar please consult our technical department or use the steel body option.

Integrated Hydraulics Ltd

Collins Road, Heathcote Ind. Est., Warwick, CV34 6TF, UK. Tel: +44 (0) 1926 881171 Fax: +44 (0) 1926 315729 Website: www.integratedhydraulics.com

Integrated Hydraulics Inc

7047 Spinach Drive, Mentor, Ohio 44060, USA Tel: (440) 974 3171 Fax: (440) 974 3170 Website: www.integratedhydraulics.com

Reducing Valves 1PD20 - Integrated Hydraulics - #1

Relief valve, Flow regulator, Flow divider, Check valve, Hydraulic check valve