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MODEL

YFIAYFIA

Restrictive pressure compensator assembly

CAPACITY:CAPACITY: 320 L/min. 320 L/min.

Restrictive pressure compensator

This valve assembly consists of a normally-open restrictive style compensator on the P port

and a shuttle that senses pressure from the higher of the 2 work ports. Its purpose is to

provide a relatively constant pressure drop across the directional valve thus isolating the

directional valve spool from high flow forces. This is accomplished by throttling the supply

into the P port. The constant drop creates a pressure compensated flow control out of the

directional valve.

sunhydraulics.com/model/YFIA

TECHNICAL DATATECHNICAL DATA

Body Type Sandwich

Interface ISO 08

Capacity 320 L/min.

Body Features Meter in P

Stack Height 87 mm

Seal Plate Included (see notes) No

Operating Characteristic Restrictive

Model Weight 5.28 kg.

NOTESNOTES

Seal retainer plate is not required for this assembly.

For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the

Included Components tab.

Important:Important:

Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the

manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for

pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.

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MODEL

YFIAYFIA

Restrictive pressure compensator assembly

CAPACITY:CAPACITY: 320 L/min. 320 L/min.

Continued fromContinued from

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(X)(X)CONTROLCONTROL

XX Not Adjustable

(D)(D)DIFFERENTIAL PRESSUREDIFFERENTIAL PRESSURE

DD 50 psi (3,5 bar)

HH 200 psi (14 bar)

(N)(N)SEAL MATERIALSEAL MATERIAL

NN Buna-N

VV Viton

(C)(C)

1 2 3 4

5 6 7 8

9 10 11 12

OPTION SELECTION EXAMPLE: YFIAOPTION SELECTION EXAMPLE: YFIAXXDDNNCCAA

PRIMARY CARTRIDGEPRIMARY CARTRIDGE

CC C (with LPJC primary cartridge, Normally open, modulating element)

INCLUDED COMPONENTSINCLUDED COMPONENTS

PartPart DescriptionDescription QuantityQuantity

500-001-114* O-Ring 2

500-001-121* O-Ring 4

811-001-002* Locating Pin 1

A330-006-004* SAE Plug 1

CSABXXN Cartridge 1

LPJCXDN Cartridge - Primary 1

TECHNICAL FEATURESTECHNICAL FEATURES

This assembly is normally used in a multi-station load-sense system or with a pressure compensated pump.

The pressure differential across the orifice (directional valve) varies with flow and system pressure. It is at its highest at zero flow

and drops with increasing flow.

Another term for this assembly is a hydrostat.

MANIFOLD FACESMANIFOLD FACES

FACE GRIDFACE GRID

PRIMARY CARTRIDGE CONFIGURATIONPRIMARY CARTRIDGE CONFIGURATION

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Face 2Face 2

Face 5Face 5

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Face 6Face 6

Face 7Face 7

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Face 8Face 8