SUN HYDRAULICS
RBACFCN

$61.35 USD

SUN HYDRAULICS
Material:RBACFCN
Model:RBAC-FCN
Summary:Cartridge

Quantity in stock: 0

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 RBACFCN (Material Number: RBACFCN) is a direct-acting, pilot relief cartridge designed for remote pressure control of other pilot-operated valves. This model is specifically intended for systems where capacity is limited to pilot flow and should be used in conjunction with higher flow valves. The cartridge incorporates EPDM seals, making it suitable for use with phosphate ester fluids while being incompatible with petroleum-based fluids, greases, and lubricants. A 150-micron stainless steel screen protects the main stage orifice, ensuring durability and reliability in load-holding applications. The valve's setting is directly influenced by back pressure on the tank port at a 1:1 ratio. The RBACFCN features corrosion-resistant options identified by suffixes AP or LH for external stainless steel or zinc-nickel plated components respectively. It employs Sun's floating style construction to prevent internal parts from binding due to excessive installation torque or cavity/cartridge machining variations. The cartridge fits a T-10A cavity and operates at a maximum pressure of 5000 psi (350 bar), with a typical response time of 2 milliseconds. Valve leakage is minimal, with no more than 5 drops/minute at 110 SUS (24 cSt). Adjustments are made via an internal hex screw, requiring up to five clockwise turns to increase the setting, while installation requires specific torque settings for optimal performance. Weighing just .30 lb (0.15 kg), it offers robust performance in compact form factors. For those utilizing Viton seals, the appropriate seal kit number is 990010006. This versatile component is ideal for applications needing precise pressure control in corrosive environments or systems using phosphate ester fluids.

Description

Direct-acting, pilot relief cartridges are used to remotely control the pressure setting of other pilot-operated valves. Because capacity is limited to pilot flow, these valves should be used with other higher flow 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.
Main stage orifice is protected by a 150 micron stainless steel screen.
Suitable for use in load holding applications.
Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
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.

Cavity	T-10A
Series	1
Capacity	.25 gpm1 L/min.
Maximum Operating Pressure	5000 psi350 bar
Response Time - Typical	2 ms2 ms
Maximum Valve Leakage at 110 SUS (24 cSt)	5 drops/min.0,3 cc/min.
Adjustment - Number of Clockwise Turns to Increase Setting	55
Valve Hex Size	7/8 in.22,2 mm
Valve Installation Torque	30 - 35 lbf ft41 - 47 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	.30 lb0,15 kg
Seal kit - Cartridge	Viton: 990-010-006

Show FAQ

Additional Resources

Notes:

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

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.
Where would I use a kick-down relief?	One graphic example is on a portable grain auger for silos. When the farmer gets caught in the auger the kick-down relief trips and allows him to escape.
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.
How big is a drop of hydraulic oil?	There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
Can I use a kick-down relief for my system relief?	Maybe not. We build in a good amount of overlap in the kick-down reliefs to prevent false tripping. This means they are not as fast as our standard pilot-operated reliefs. A direct-acting relief valve set just above the kick-down relief valve would be good insurance.

SUN HYDRAULICSRBACFCN

Additional Resources

SUN HYDRAULICS
RBACFCN