DRV HD Rack & Pinion Actuator

Actuators

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DRV - Pneumatic & Hydraulic Rack and Pinion Actuator ( Female Shaft )

Features
Torque & Dimensions
Brochures
IOM Manual

FEATURES

DOUBLE ACTING :

Unique rack and pinion construction for constant torque output.
Cylinder bore hard chrome plated, pinion Electro less Nickel Plated, external surface epoxy painted for high corrosion resistance.
The pinion is supported on ball bearings.
Unique rack supporting system, pre-load on pinion can be adjusted.
Maximum working pressure 8 bar.
Additional lubrication is not necessary.
Temperature range NBR - 20 °C to 80 °C

                               Viton     - 25 °C   to   125 °C
                   Flouro Silicon    - 40 °C   to   110 °C
                               HNBR     - 40 °C   to   80 °C

Life tested to more than 1 million cycles.
Easily convertible from single to double acting and vice versa.

HEAVY DUTY PISTON ROD BEARING

Bronze guide bush bearing.
Life time lubricated by special greas.

PINION BEARINGS

Pinion Mounted on rigid ball bearings.
Very low friction improves stick slip resistance.
Stem of the valve is protected with side thrust.

FLEXI ARM CONNECTION

The Rack & pinion rod are connected through the flexible coupling.
No slide thrust is transferred to the piston rod.
Ensured long life of piston rod seals.

GUIDED SPRING CARTRIDGE

Unique spring retaining system.
Pre - assembled catridge.
Spring can be inspected periodically without dismantling it from the Actuator.
Spring torque can be easily changed by interchanging the cartridge.

ISO PAD

Customer interface as per ISO 5211.
An optional customized solution is possible.
One piece pinion provides playless operation.
Dual keyway allows easy conversion from NO to NC and vice versa.

ZERO BACKLASH RACK GUIDE

Rack Guiding system installed with ball bearings.
Eccentric pin provides adjustment to rack backlash.
Can achieve up to zero backlash.
Long life adjustments can be made.

SPRING RETURN :

Unique spring retaining system.
The spring can be removed from the Actuator for periodic inspection.
The springs are epoxy painted and life time lubricated.
Guaranteed to operate more than 1 million cycles.

STANDARD PAINT FINISH

ROTEX provides, a high quality corrosion protection system, on all DRV Actuators. The Actuators are painted usin a two coat system, an epoxy base primer of 15- 20 µ thickness and multiple top coat of RAL5015 of total 60 µ. The paint can withstand 200 hrs of salt spary test.
Optional 1000 hrs of salt spary withstanding paintings can be provided.