Pilot Operated Sequence Valve - Series R4S | Product Series

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Pilot Operated Sequence Valve - Series R4S

Pilot Operated Sequence Valve - Series R4S

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Subplate mounted sequence valves series R4S enable a hydraulic system to operate in a pressure sequence.

Technical Specifications

  • Maximum Operating Pressure: Port A, B, X 350; port Y depressurized bar
  • Drain Option: External drain from subplate
  • Actuation Type: Manually
  • Mounting Type: Subplate mounting
  • Operation Type: Pilot operated
  • Weight: 2.7 to 6.0 kg Depending on Size
  • Product Series: Pressure valve
  • Maximum Flow Rate: N/A
  • Maximum Operating Temperature: 60 °C
  • Minimum Operating Temperature: -20 °C
  • Seal Material: NBR, FPM
  • Flow Rate: Depending on size, 150 - 650 L/min
  • Maximum Pressure Setting: 105, 210, 350 bar
  • Body Material: Cast iron

chemicalComposition California Residents: Prop-65 Warning

Safety Warning

Full Product Description

Parker subplate mounted sequence valves series R4S are exceptional – both in function and design – even under high flow conditions. Pacemaking in design, these valves offer improved features.

The pilot operated R4S valves enable a hydraulic system to operate in a pressure sequence. The design combines a poppet type seat valve with the pilot control. When the system pressure reaches the setting pressure, the valve opens and permits flow to the secondary subsystem. The pilot control reduces the pressure loss from primary to secondary area to a minimum.

Markets:
• Industrial

Features/Benefits:
• High performance - maximum adjustable pressure of 350 bars and a flow capacity ranging from 150 l/min to 650 l/min
• Sophisticated pilot stage design reduces pressure overtravel and cracking flow to a minimum - thus reducing heating, power and production losses at high pressure operation
• Precise adjustment and quick response - eliminate pressure variation and system shocks
• Three spring settings - for sensitive control
• Short delivery time - no warehousing necessary
• 3 pressure stages
• 3 adjustment modes:
  - hand knob
  - acorn nut with lead seal
  - cylinder lock

Applications:
• Suitable for general hydraulic applications

Related Documents

Compliance, Certifications & Safety
DIN ISO 9001:2015 Certificate ISDE
Position Paper ISDE 2006/42/EC and EN ISO 13849
Literature and Reference Materials
Hydraulic Valves Industrial Standard, Offline Version--MSG11-3500/UK
Pilot Operated Sequence Valve Catalog - R4S (North America)
Pilot Operated Sequence Valve Series R4S, Catalogue
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Products Port Connection Pressure Control Range Pressure Adjustment Control Type Seal Material
016-65143-0 NG10 / CETOP 05 105 bar Hand knob NBR
016-91958-0 NG10 / CETOP 05 105 bar Acorn nut with lead seal NBR
016-84968-0 NG10 / CETOP 05 210 bar Hand knob NBR
R4S03-53311A5 NG10 / CETOP 05 210 bar Hand knob FPM
026-20851-0 NG10 / CETOP 05 210 bar Acorn nut with lead seal NBR
016-65060-0 NG10 / CETOP 05 350 bar Hand knob NBR
R4S03-53511A5 NG10 / CETOP 05 350 bar Hand knob FPM
016-91957-0 NG25 / CETOP 08 105 bar Acorn nut with lead seal NBR
016-65371-0 NG25 / CETOP 08 105 bar Hand knob NBR
026-22930-0 NG25 / CETOP 08 210 bar Acorn nut with lead seal NBR
016-84969-0 NG25 / CETOP 08 210 bar Hand knob NBR
016-65370-0 NG25 / CETOP 08 350 bar Hand knob NBR
016-80201-0 NG25 / CETOP 08 350 bar Acorn nut with lead seal NBR
016-65370-5 NG25 / CETOP 08 350 bar Hand knob FPM
016-80219-0 NG32 / CETOP 10 105 bar Hand knob NBR
016-86017-0 NG32 / CETOP 10 105 bar Acorn nut with lead seal NBR
016-85567-0 NG32 / CETOP 10 210 bar Hand knob NBR
026-56107-0 NG32 / CETOP 10 210 bar Acorn nut with lead seal NBR
016-86437-0 NG32 / CETOP 10 350 bar Hand knob NBR
056-40086-5 NG32 / CETOP 10 350 bar Acorn nut with lead seal FPM
R4S10-53341A1 NG32 / CETOP 10 210 bar Cylinder lock NBR
R4S10-53341A5 NG32 / CETOP 10 210 bar Cylinder lock FPM
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