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SUN HYDRAULICS
RED-REL CART
PBJBLWN


$359.10 USD

Tags:

  • SUN HYDRAULICS
  • Material:PBJBLWN
  • Model:PBJB-LWN
  • Summary:Cartridge

Quantity in stock: 3

Note: Sales tax, and shipping will be calculated at checkout.
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics PBJBLWN (PBJBLWN) is a pilot-operated pressure reducing valve designed to manage high primary pressures at inlet port 2, maintaining a consistent reduced pressure at port 1. This functionality is ideal for systems requiring multiple pressure levels, all powered by a single pump. The valve's three-port configuration allows for physical interchangeability with other pressure reducing and relieving cartridges of the same frame size, offering flexibility in various mounting scenarios. For configurations using reducing-relieving cartridges, it's recommended to utilize a full-capacity return line at port 3 to ensure optimal performance. This model features a main stage orifice protected by a 150-micron stainless steel screen and supports maximum inlet pressures based on the adjustment range: Ranges D, E, N, and Q are tested up to 2000 psi (140 bar), while Ranges A, B, and H can handle up to 3000 psi (210 bar), and Ranges C and W accommodate up to 5000 psi (350 bar). The valve's design ensures flat pressure-flow characteristics with low hysteresis and stability. However, it\u2019s important to note that pilot-operated valves are not fast-acting; for applications requiring quick dynamic responses, direct-acting valves are recommended. Additionally, the PBJBLWN incorporates Sun's floating style construction to reduce internal part binding due to installation torque or machining variations. It is equipped with EPDM seals suitable for systems using phosphate ester fluids but not compatible with petroleum-based substances. The valve has an installation torque of 350\u2013375 lbf ft (474\u2013508 Nm) and features adjustable settings controlled by an internal hex screw. With its robust design and precise control capabilities, this valve is well-suited for complex hydraulic systems demanding reliable pressure regulation.

Pilot-operated, pressure reducing valves reduce a high primary pressure at the inlet (port 2) to a constant reduced pressure at port 1, allowing circuits with multiple pressure requirements to be operated using a single pump.

  • All three-port pressure reducing and reducing/relieving cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size). When considering mounting configurations, it is sometimes recommended that a full capacity return line (port 3) be used with reducing/relieving cartridges.
  • Full reverse flow from reduced pressure (port 1) to inlet (port 2) may cause the main spool to close. If reverse free flow is required in the circuit, consider adding a separate check valve to the circuit.
  • If pilot flow consumption is critical, consider using direct acting reducing/relieving valves.
  • Main stage orifice is protected by a 150 micron stainless steel screen.
  • Recommended maximum inlet pressure is determined by the adjustment range. Ranges D, E, N, and Q are tested with a 2000 psi (140 bar) maximum differential between inlet and reduced pressure. Ranges A, B, and H are tested with a 3000 psi (210 bar) maximum differential between inlet and reduced pressure. Ranges C and W are tested with 5000 psi (350 bar) of inlet pressure.
  • Pilot operated valves exhibit exceptionally flat pressure/flow characteristics, are very stable and have low hysteresis.
  • Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
  • Pilot operated reducing, reducing/relieving valves by nature are not fast acting valves. For superior dynamic response, consider direct acting valves.
  • 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.
  • 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.

CavityT-19A
Series4
Capacity80 gpm320 L/min.
Factory Pressure Settings Established atblocked control port (dead headed)blocked control port (dead headed)
Maximum Operating Pressure5000 psi350 bar
Control Pilot Flow15 - 20 in³/min.0,25 - 0,33 L/min.
Adjustment - Number of Clockwise Turns to Increase Setting55
Valve Hex Size1 5/8 in.41,3 mm
Valve Installation Torque350 - 375 lbf ft474 - 508 Nm
Adjustment Screw Internal Hex Size5/32 in.4 mm
Locknut Hex Size9/16 in.15 mm
Locknut Torque80 - 90 lbf in.9 - 10 Nm
Model Weight2.90 lb1,30 kg
Seal kit - CartridgeViton: 990-019-006

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Notes:
  • Maximum pressure differentials for spring ranges: A and B are 3000 psi (210 bar) N and Q are 2000 psi (140 bar) W is 5000 psi (350 bar)inlet pressure