SUN HYDRAULICS
PBHCBBV

$364.16 USD

SUN HYDRAULICS
Material:PBHCBBV
Model:PBHC-BBV
Summary:Cartridge

Quantity in stock: 0

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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 PBHCBBV (PBHCBBV) is an air-controlled, pilot-operated pressure reducing cartridge designed to convert high primary pressure at inlet port 2 to a consistent reduced pressure at port 1. Utilizing compressed air over a diaphragm instead of an adjustable spring, the hydraulic setting is directly proportional to the air setting with a ratio of 20:1 hydraulic:air. This model features full interchangeability among three-port pressure reducing and reducing-relieving cartridges, maintaining the same flow path and cavity for a given frame size. When using reducing-relieving cartridges, it's advised to employ a full capacity return line port 3. Full reverse flow from reduced pressure port 1 to inlet port 2 may cause the main spool to close; hence, incorporating a separate check valve is recommended if reverse free flow is needed in the circuit. Key operational parameters include a maximum air pressure of 150 psi (10.5 bar) due to diaphragm strength and a maximum pressure differential from inlet to outlet not exceeding 3000 psi (210 bar). The adjustment range spans from 50 to 1500 psi (3.5 to 105 bar), while maximum operating pressure reaches up to 2000 psi (140 bar). With a pilot ratio of 20:1 and control pilot flow between 15 - 20 in\u00b3/min (0.25 - 0.33 L/min), this cartridge incorporates Sun's floating style construction minimizing internal parts binding risks due to excessive installation torque or cavity/cartridge machining variations. The PBHCBBV model has an installation torque requirement of 150 -160 lbf ft (203 -217 Nm) and weighs approximately 1.30 lb (0.60 kg). It features an explosion-proof remote control capability via its air control feature and requires consideration for direct acting valves if superior dynamic response is necessary due to its moderately fast nature as a pilot-operated valve.

Description

Air-controlled, pilot-operated pressure reducing cartridges use compressed air over a diaphragm instead of an adjustable spring as the setting to reduce a high primary pressure at the inlet (port 2) to a constant reduced pressure at port 1. The air signal is supplied through a port in the hex-end of the cartridge and the hydraulic setting is directly proportional to the air setting at a ratio of 20:1 (hydraulic:air).

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.
The pressure at port 3 determines the minimum valve setting and should not exceed 1000 psi (70 bar).
The full adjustment range is 50 to 1500 psi (3,5 to 105 bar).
Maximum air pressure should not exceed 150 psi (10,5 bar) due to the strength of the diaphragm.
Maximum pressure differential, inlet to outlet, should not exceed 3000 psi (210 bar).
Pilot operated reducing, reducing/relieving valves by nature are not fast acting valves. For superior dynamic response, consider direct acting valves.
The air control feature allows explosion proof remote control.
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.

Cavity	T-17A
Series	3
Capacity	40 gpm160 L/min.
Pilot Ratio	20:120:1
Maximum Operating Pressure	2000 psi140 bar
Control Pilot Flow	15 - 20 in³/min.0,25 - 0,33 L/min.
Maximum Air Pressure	150 psi10,5 bar
Valve Hex Size	1 1/4 in.31,8 mm
Valve Installation Torque	150 - 160 lbf ft203 - 217 Nm
Adjustment Screw Internal Hex Size	5/32 in.4 mm
Locknut Hex Size	9/16 in.15 mm
Locknut Torque	80 - 90 lbf in.9 - 10 Nm
Model Weight	1.30 lb0,60 kg
Seal kit - Cartridge	Viton: 990-017-006

Show FAQ

Direct acting or pilot operated - what do I use?	Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.
How big is a drop of hydraulic oil?	There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
What are the tolerances on pressure settings for Sun's pressure control valves?	Pressure setting tolerances are listed in our Performance Data page. A link to this page can also be found in the Additional Resources tab of the applicable product page.
Can I back flow through a reducing valve from port 1 to port 2?	Yes. A reducing or reducing/relieving valve is normally open. If the pressure in the secondary circuit is less than the setting, it will be open.2 caveats: (1) If the valve is in the reducing mode and you suddenly reverse the flow, the valve will not have time to open and will shift into relieving mode or (2) If the back flow generates a pressure drop through the valve that exceeds the setting, the valve will shift into the relieving mode.When in doubt, use a reverse flow check.
I need a reducer on B. Can I connect the drain to A?	Yes. If you look in the sandwich section you will see that we offer many such packages. When you are pressurizing B, A is connected to tank, allowing the reducer to do its job. When you reverse, the drain or tank port of the reducer is pressurized by A. This increases the setting of the reducer and helps keep the reducer open in the reverse flow direction.
What do you mean by maximum differential?	Our reducing valves are outside-in valves; the supply pressure on the outside of the working parts is higher than the inside. At some pressure differential, the outside (sleeve) will close in on the piston and cause the valve to stick. A D range is adjustable from 25 to 800 psi with a maximum differential of 2000 psi. This means you could set the valve at 600 psi and expect it to work correctly with a supply pressure of 2600 psi. The valve may work at higher differentials, but we do not recommend it. The W and C ranges are tested over their entire range with an inlet pressure of 5000 psi. All direct-acting valves are tested with an inlet pressure of 5000 psi.

SUN HYDRAULICSPBHCBBV

Additional Resources

SUN HYDRAULICS
PBHCBBV