Functional Description

       

2 way pressure compensator for meter-in application

The 2 way pressure compensators in meter-in application

will maintain a constant pressure difference across the

metering edge of the proportional direction valve. In this

case, the pressure variations due to loading changes, as

well as pump pressure changes are compensated so any

increase in pump pressure does not affect the flow. The

meter-in compensators may only be used with positive

load direction.

Valves TV2-042/M are directly operated 2 way pressure

compensators in sandwich plate design. They are

designated for load compensation in channel P.

The main parts of these valves are the housing (1), control

spool (2), spring (3) and shuttle valve (4). The spring (3)

holds the spool in the open position from P2 to P1,

provided that the pressure difference between P1 and A

(P1 - B) is less than 10 bar. When the pressure difference

exceeds the value of 10 bar, the spool shifts against the

spring until the desired pressure difference has been

restored.

The pressure signal comes through passage (5) from

channel P.

The valve body is phosphated, all other parts are zinc

coated.

2 way pressure compensator for meter-out appli-

cation

In systems with changing load directions, the use of

meter-out pressure compensators is required. With

respect to the application a valve with pressure

compensator installed in one, or in both actuator ports

are available.

The pressure compensator is always mounted between

the actuator and the proportional directional valve. The

valve will maintain the pressure difference between A and

T or B and T constant. The flow rate and the flow direction

are adjusted by the proportional directional valve. To

enable the reverse flow, two by-pass check valves are

incorporated into the valve body.

The valve consists of the valve body (1), one or two

control spools (2) and poppets of the by-pass check

valves (3). If the pump, for example, is connected to port

A, the fluid passes to the actuator through a check valve

and returns from the actuator through channel B to the

proportional directional valve. The pressure difference

across the metering edge of the directional valve is

maintained at a constant level. This ensures a constant

flow rate independent to the load. The pressure

difference is controlled by the metering edge (4), its value

being determined by spring force (5).

Modular design for vertical stacking assemblies

Build-in load sensing shuttle valve

Installation dimensions to ISO 4401:1994

HA 5167

2/2013

Replaces

HA 5167 6/2008

Size 04 · p

max

350 bar · Q

max

16 L/min

2 Way Pressure Compensator

TV2-042/M

HA 5167

Ordering Code

TV2 - 042/M

Nominal size

Model

A Meter-in compensator in channel A

B Meter-in compensator in channel B

C Meter-in compensator in channels A and B

D Meter-out compensator in channels A and B

E Meter-out compensator in channel A

F Meter-out compensator in channel B

Pressure Compensator

Seals

without designation NBR

V FPM (Viton)

2 Way Pressure Compensator

Sandwich plate design

Nominal size mm 04

Maximum flow L/min 20

Max. operating pressure bar 350

Pressure drop on valve Dp bar 10

Hydraulic fluid Hydraulic oils of power classes (HL, HLP) to DIN 51524

Maximum degree of fluid contamination Class 21/18/15 to ISO 4406

Weight (Model A,B,C,D,E,F) kg 0.6

Mounting position unrestricted

Technical Data

Functional Symbols

Model A

Model B

Model C

Model D

Model E

Model F

 valve side

 plate side









HA 5167

Typical Applications

Logic valve

Proportional

directional valve

Pressure compensator

TV2-042/MC

TV2-042/MC Meter-in compensator

TV2-042/MD Meter-out compensator

Proportional

directional valve

Pressure

compensator

TV2-042/MD

Characteristics

Measured at n = 32 mm

TV2-042/MC Meter-in compensator

TV2-042/MD Meter-out compensator

Flow Q [L/min]

Pressure [bar]

Flow Q [L/min]

The characteristic of the pressure compensator corresponds to the flow rate of a PRM2-043Z11/12 proportional directional

valve. By increasing the flow resistance due to a flow rate increase, also the outside pressure difference has to be

increased, in order to ensure the correct control function.

HA 5167

Caution!



The packing foil is recyclable. The protective plate can be returned to manufacturer.



The technical information regarding the product presented in this catalogue is for descriptive purposes only. It should

not be construed in any case as a guaranteed representation of the product properties in the sense of the law.

Valve Dimensions Dimensions in millimetres

Required surface finish of

interface

TV2-042/M Meter-in compensator

1 Name plate

2 Squarq ring 7.65 x 1.68 (4 pcs.)

3 4 mounting holes

TV2-042/M Meter-out compensator

1 2

Subject to alteration without notice!

ARGO-HYTOS s.r.o. CZ - 543 15 Vrchlabí

Tel.: +420-499-403 111

E-mail: info.cz@argo-hytos.com