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198

Needle Valve

with Free Reverse Flow – 350 bar

SAE10-Cartridge

SDR10A-11

Hydraulically-operated

Up to 100 l/min

Up to 350 bar

The needle valve SDR10A-11 is an

adjustable, hydraulically operated

throttle valve. Depending on the throttle

setting, the valve controls the ow

rate from port 2 to 1. There is free ow

from port 1 to 2. Flow is not pressure-

compensated, i.e. the ow rate is subject

to the viscosity and the pressure drop.

The valve is used for precise ow control

from 0 to 40 l/min.

General

 Precise ow control function up to 40 l/min from port 2 to 1

 The ow is controlled subject to the viscosity of the oil and the pressure drop

 Required setting can be secured with locking screw

 Excellent stability over the entire ow rate range

 All surfaces zinc-plated and corrosion proof

 Rigid design using one-piece body minimizes the effect of eccentricities in cavity

and maximizes reliability

 Reverse ow possible (ushing function)

Function

SpeciFicationS

Operating pressure: Max. 350 bar

Nominal Flow: Max. 100 l/min

Internal leakage: < 0.5 l/min at 350 bar

Media operating temperature range: Min. -20° C to max. +80° C

Fluids: Hydraulic oil to DIN 51524 Part 1 + 2

Viscosity: Min. 10 mm²/s to max. 420 mm²/s

Filtration: Class 21/19/16 according to ISO 4406

or cleaner

Mounting position: Optional

Material: Valve body: steel

Throttle spindle: ground steel

Seals: NBR (standard)

FKM (optional)

Back-up rings: PTFE

Cavity: FC10-2

Weight: 0.15 kg

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199

perFormance

model code

 SDR10A-11-C-N-15V

Basicmodel

Needle valve, hydraulically operated

Cavity

10 = 2 way UNF cavity

Type

11 = precise control (standard)

Connectiontype

C = cartridge only

Seals

N = NBR (standard)

V = FKM (optional)

Pressuresetting

15 = 15 PSI (1 bar)

Typeofadjustment

V = adjustable, by tool

dimenSionS

Pressure drop [bar]

ow [l/min]

millimeter (inch)

Subject to technical modications

cavity

FC10 -2

Formtools

Tool PartNo.

Countersink FC10-2 176379

Reamer FC10-2 165706

Measured at n = 34 mm²/s, T

Oil

= 46 °C

millimeter (inch)

Subject to technical modications

HYDACFluidtechnikGmbH

Justus-von-Liebig-Str.

D-66280Sulzbach/Saar

Tel: 0 68 97 /509-01

Fax: 0 68 97 /509-598

E-Mail: utec@hydac.com

The information in this brochure

relates to the operating conditions and

applications described. For applications

or operating conditions not described,

please contact the relevant technical

department. Subject to technical modi-

cations.

Note

Inlineconnectionhousings

Code PartNo. Material Ports Max.pressure

FH102-SB4 3037594 Steel, zinc-plated G1/2 BSP 420 bar

FH102-AB4 3037777 Aluminium, clear anodized G1/2 BSP 245 bar

Standardmodels

Modelcode   PartNo.

SDR10A-11-C-N-15V 3360939

∆p-Q graph, ow direction 2->1

∆p-Q graph, valve completely open

Pressure drop [bar]

Flow [l/min]

bar bar

l/min