MODEL

RPGC

Pilot-operated, balanced piston relief valve

CAPACITY: 200 L/min. / CAVITY: T-3A

sunhydraulics.com/model/RPGC

Pilot-operated, balanced-piston relief cartridges are normally closed pressure regulating valves. When the

pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to

regulate the pressure. These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet,

and are moderately fast.

TECHNICAL DATA

NOTE: DATA MAY VARY BY CONFIGURATION. SEE CONFIGURATION SECTION.

Cavity T-3A

Series 2

Capacity 200 L/min.

Maximum Operating Pressure 350 bar

Factory Pressure Settings Established at 15 L/min.

Maximum Valve Leakage at 110 SUS (24 cSt) 50 cc/min.@70 bar

Response Time - Typical 10 ms

Adjustment - No. of CW Turns from Min. to Max. setting 5

Valve Hex Size 28,6 mm

Valve Installation Torque 61 - 68 Nm

Adjustment Screw Internal Hex Size 4 mm

Locknut Hex Size 15 mm

Locknut Torque 9 - 10 Nm

Model Weight 0.26 kg.

Seal kit - Cartridge Buna: 990-203-007

Seal kit - Cartridge EPDM: 990-203-014

Seal kit - Cartridge Polyurethane: 990-003-002

Seal kit - Cartridge Viton: 990-203-006

For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.NOTES:

OPTION SELECTION EXAMPLE: RPGCLAN

CONTROL (L)

L Standard Screw Adjustment

C Tamper Resistant - Factory Set

F Hex Head Screw with Locknut

W Hex Wrench Adjustment

Y Tri-Grip Handknob

ADJUSTMENT RANGE (A)

A 100 - 3000 psi (7 - 210 bar), 1000

psi (70 bar) Standard Setting

B 50 - 1500 psi (3,5 - 105 bar), 1000

psi (70 bar) Standard Setting

C 150 - 6000 psi (10,5 - 420 bar),

1000 psi (70 bar) Standard Setting

D 25 - 800 psi (1,7 - 55 bar), 400 psi

(28 bar) Standard Setting

E 25 - 400 psi (1,7 - 28 bar), 200 psi

(14 bar) Standard Setting

N 60 - 800 psi (4 - 55 bar), 400 psi

(28 bar) Standard Setting

Q 60 - 400 psi (4 - 28 bar), 200 psi

(14 bar) Standard Setting

W 150 - 4500 psi (10,5 - 315 bar),

1000 psi (70 bar) Standard Setting

SEAL MATERIAL (N)

N Buna-N

E EPDM

V Viton

MATERIAL/COATING

Standard Material/Coating

/AP Stainless Steel, Passivated

/LH Mild Steel, Zinc-Nickel

TECHNICAL FEATURES

All 2-port relief cartridges (except pilot reliefs) are physically and functionally interchangeable (same flow path, same cavity for a given frame

size).

Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. If used in cross port relief circuits, consider spool leakage.

Main stage orifice is protected by a 150-micron stainless steel screen.

Not suitable for use in load holding applications due to spool leakage.

Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.

Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and

lubricants will damage the seals.

W and Y controls (where applicable) can be specified with or without a special setting. When no special setting is specified, the valve is

adjustable throughout its full range using the W or Y control. When a special setting is specified, this setting represents the maximum setting of

the valve.

Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP for external

stainless steel components, or /LH for external zinc-nickel plated components. See the CONFIGURATION section for all options. For further

details, please see the Materials of Construction page located under TECH RESOURCES.

Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or

cavity/cartridge machining variations.

PERFORMANCE CURVES