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SUN HYDRAULICS
PBJBNNV


$373.10 USD

Tags:

  • SUN HYDRAULICS
  • Material:PBJBNNV
  • Model:PBJB-NNV
  • Summary:Cartridge

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***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 PBJBNNV (PBJBNNV) is a pilot-operated pressure reducing valve designed to manage hydraulic systems with varying pressure requirements using a single pump. It effectively reduces a high primary pressure at the inlet port 2 to maintain a consistent reduced pressure at port 1. This model is part of the three-port pressure reducing and reducing-relieving cartridge family, which features interchangeable components for ease of installation and maintenance. The valve's main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability in demanding environments. It operates with maximum inlet pressures determined by its adjustment range, accommodating up to 5000 psi (350 bar) for certain ranges. The PBJBNNV model exhibits stable performance with exceptionally flat pressure-flow characteristics and low hysteresis, although it is not designed for rapid response applications; for such needs, direct-acting valves are recommended. The valve's construction minimizes the risk of internal part binding due to excessive installation torque or machining variations. It incorporates Sun\u2019s floating style construction for enhanced reliability. The valve supports full reverse flow from reduced pressure port 1 to inlet port 2 but may require an additional check valve if reverse free flow is necessary in the circuit. Additionally, it offers compatibility with systems using phosphate ester fluids when equipped with EPDM seals; however, it should not be exposed to petroleum-based fluids as this could damage the seals. With a capacity of 80 gpm (320 L/min) and a factory setting established at blocked control port conditions, this model provides robust control in hydraulic circuits requiring precise pressure regulation across diverse operational conditions.

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