RBAC-LAN – Sun Hydraulics Direct-acting relief valve – pilot capacity

Q: Is RBACLAN the same as RBAC-LAN?

Yes. Sun Hydraulics writes this part number as RBACLAN. It is the model RBAC followed by the configuration code; hyphens, slashes and spaces are only dividers, so RBACLAN, RBAC-LAN, RBAC LAN all refer to the same product.

Brand: Sun Hydraulics
SKU: RBAC

RBAC-LAN Sun Hydraulics Relief Valve – installation dimensions drawing, cavity T-10A

RBAC-LAN Sun Hydraulics Relief Valve – hydraulic schematic symbol

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Part number: RBACLAN · RBAC-LAN · RBAC LAN

Brand Sun HydraulicsType Relief ValvesCapacity .25 gpm (1 L/min.)Cavity T-10A

Direct-acting relief valve – pilot capacity. Cavity T-10A, capacity .25 gpm (1 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.

SKU: RBAC Category: Relief Valves Brand: Sun Hydraulics

RBAC-LAN overview

RBACLAN (RBAC-LAN, RBAC LAN) is a Sun Hydraulics Sun Hydraulics Direct-acting relief valve - pilot capacity, rated .25 gpm (1 L/min.) and installed in cavity T-10A. MultiFlow supplies genuine Sun Hydraulics cartridges in the UAE, GCC and India — use Add to Enquiry above for availability and a quotation.

Ordering codes

Pick the code that matches the material and finish you need. Add it to your enquiry above, or tap a code to select it.

RBACLAN/AP	Stainless Steel, PassivatedStainless Steel, Passivated
RBACLAN/LH	Mild Steel, Zinc-NickelMild Steel, Zinc-Nickel
RBACLAN	Standard Material/CoatingStandard Material/Coating

Specifications

Cavity	T-10A
Series	1
Capacity	.25 gpm (1 L/min.)
Maximum Operating Pressure	5000 psi (350 bar)
Maximum Valve Leakage at 110 SUS (24 cSt)	5 drops/min. (0,3 cc/min.)
Response Time - Typical	2 ms
Adjustment - No. of CW Turns from Min. to Max. setting	5
Valve Hex Size	7/8 in. (22,2 mm)
Valve Installation Torque	30 - 35 lbf ft (41 - 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 lb (0,15 kg)
Seal kit - Cartridge	Viton: 990010006

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

How to read RBACLAN

Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so RBACLAN, RBAC-LAN, RBAC LAN are the same part.

Model	RBAC — Sun Hydraulics Direct-acting relief valve - pilot capacity
Control	L — Standard Screw Adjustment
Adjustment Range	A — 25 - 3000 psi (1,7 - 210 bar), 1000 psi (70 bar) Standard Setting
Seal Material	N — Buna-N
Material / coating	Add /AP (stainless steel, passivated) or /LH (mild steel, zinc-nickel) to the end; no suffix is the standard finish.

Control options

L — Standard Screw Adjustment
C — Tamper Resistant - Factory Set
J — Capped Screw Adjustment
K — Handknob
O — Handknob with Panel Mount
F — Hex Head Screw with Locknut
M — Capped Screw Adjustment with Lockwire Holes
Q — Capped and Lockwired
T — Tamper Proof - Factory Set
W — Hex Wrench Adjustment
Y — Tri-Grip Handknob

Adjustment Range options

A — 25 - 3000 psi (1,7 - 210 bar), 1000 psi (70 bar) Standard Setting
W — 25 - 4500 psi (1,7 - 315 bar), 1000 psi (70 bar) Standard Setting
B — 25 - 1500 psi (1,7 - 105 bar), 1000 psi (70 bar) Standard Setting
C — 25 - 6000 psi (1,7 - 420 bar), 1000 psi (70 bar) Standard Setting
D — 25 - 800 psi (1,7 - 55 bar), 400 psi (28 bar) Standard Setting
E — 25 - 400 psi (1,7 - 28 bar), 200 psi (14 bar) Standard Setting

Seal Material options

N — Buna-N
V — Viton
E — EPDM

Material/coating options

/AP — Stainless Steel, Passivated
/LH — Mild Steel, Zinc-Nickel
— Standard Material/Coating

Manifold & standard assemblies

Sun manifolds for cavity T-10A (293)

View all 293 →

Technical features

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.

Drawings, symbol & performance curves

RBAC-LAN Sun Hydraulics Relief Valve – performance curve (pressure drop vs flow) — performance curve (pressure drop vs flow)

RBACLAN Sun Hydraulics Relief Valve – 2D outline drawing — 2D outline drawing

Downloads

Datasheet

Full Datasheet (RBAC-RBACLAN) (PDF 49 KB)

Technical reference sheets

CAD files

Frequently asked questions

Is RBACLAN the same as RBAC-LAN?

Yes. Sun Hydraulics writes this part number as RBACLAN. It is the model RBAC followed by the configuration code; hyphens, slashes and spaces are only dividers, so RBACLAN, RBAC-LAN, RBAC LAN all refer to the same product.

Do you supply RBACLAN in the UAE, GCC and India?

Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including RBACLAN, to customers in the UAE, the wider GCC and India. Use Add to Enquiry on this page for availability, lead time and a quotation.

Can I get the datasheet and CAD files?

Yes. The datasheet, technical reference sheets and CAD files (DXF, DWG, STP) are listed in the Downloads section of this page.

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.

What parts of the Sun cartridge valve are field serviceable?

Only external seals are serviceable. Sun offers replacement seal kits for all cartridge models. The applicable kit part number can be found in the product page's Technical Data table or by using our Cartridge Seal Kit search function located under Accessories. Please note: Converting the external seals from one material to another does not ensure fluid compatibility with that material due to the existence of internal seals within the cartridge.

Manufacturer reference: https://www.sunhydraulics.com/model/RBAC

RBAC-LAN – Sun Hydraulics Direct-acting relief valve – pilot capacity

RBAC-LAN overview

Ordering codes

Specifications

How to read RBACLAN