3D REVIEW 3D MODELS

PNEUMATIC RACK & PINION ACTUATORS

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KEY FEATURES

1. Specialist actuator manufacturer with unwavering focus on serving valve OEMs and end users.

2. Widest range of torque selections available, from 5 N-m to 7,800 N-m (44 lb-in to 69,000 lb-in).

3. One of the best torque to weight ratios in the market

4. Tailored end caps for double acting applications for reduced air consumption.

5. Actuators are field convertible from double acting to single acting and vice versa.

6. High visibility indicator and Double End Stops are standard, not a cost adder

7. Zero leak stop bolts achieved by carefully designed seals.

8. Hard anodised or nickel plated housing option for all aluminium body actuators.

9. Also available in carbon steel and stainless steel enclosures.

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Reliable Hard anodized / nickel plated body and nickel plated steel pinion, which provides high wear and corrosion resistance, thus ensuring consistent performance over an extended operating life.

Best in class industry processes are used to manufacture these actuators which result in class leading torque/weight ratios

Designed to provide high torque with minimum space and weight. Spring package, if present, is installed inside the cylinder

Springs can be easily removed/replaced due to the use of cartridges.

Technical Specification
Working Pressures

2 - 10 bar (29 - 145 psig) for Rack and Pinion

2 - 7 bar (29 - 102 psig) for Scotch Yoke

Working Environment

Standard: -50°C to 70°C (-58°F to 158°F) with NBR Seals

High Temperature: -15°C to 160°C (5°F to 320°F) with Viton Seals

Extended Temperature - 60°C to 200°C (-76°F to 392°F) with Silicone Seals

Food safe version also available

Endurance Testing

Standard working life is 500,000 cycles according EN15714-3 (certified by TUV Nord)

Valve Interface

Valve Shaft Interface: ISO 5211

double square, DIN 3337

Air Supply Ports

VDI/VDE3845 NAMUR, EN ISO228 G1/8”, G1/4”, G1/2” based on the actuator size

Accessories

VDI/VDE3845 NAMUR

Involute Teeth

Facilitates smooth engagement and operation of rack & pinion

Machined Steel Rack Insert

Rugged design enabling it to be used even in demanding manual override situations offering better serviceability and precise control for modulating applications with minimal backlash.

Anti-blowout design

Stem retained with steel circlip

Lubrication

Lubricated for life

Extruded body

Low weight, better strength and hard anodised / nickel plated finish.

Springs

Cartridge type, pocketed design for compactness and easy serviceability. Shot peened, oil tempered alloy steel springs with powder coated finish, enclosed in a cartridge. These cartridge type springs ensure the best fit for your valve with guaranteed fail-safe action.

Manual Override

An integral and de-clutchable handwheel is available as an option across all models.

Approvals and Industry Standards:

Management System in Accordance with ISO 9001:2015

Valve flange: ISO 5211/DIN3337

Solenoid flange: VDE/VDI 3845 (NAMUR)

Accessory flange: VDE/VDI 3845 (NAMUR) Complies with EN60529 for IP68

European Directives: ATEX 2014/34/EU, PED and CE

Coating Options:

1 Hard Anodised

2 Epoxy coated (200+ Hours Salt Spray Test)

3 Duraflon PTFE coating

4 FDA Compliant Epoxy Polyester Coating

5. Nickel plated

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PARTS LISTS - RACK AND PINION
ITEM DESCRIPTION MATERIAL
1 Housing Aluminium
2 Pinion Steel
3 O-Ring Rubber
4 O-Ring Rubber
5 Stopper Steel
6 Wear Ring DELRIN®/Nylon
7 Bearing Bush DELRIN®/Nylon
8 Thrust Washer DELRIN®/Nylon
9 Shim Stainless Steel
10 Circlip Stainless Steel
11 Piston Aluminium
12 Rack Steel
13 Socket Head Cap Screw Stainless Steel
14 O-Ring Rubber
15 Wear Ring DELRIN®/Nylon
16 Wear Strip DELRIN®/Nylon
17 Spring Cartridge Spring Steel
18 End Cover Aluminium
PARTS LISTS - RACK AND PINION
ITEM DESCRIPTION MATERIAL
19 End Cover Aluminium
20 O-Ring Rubber
21 O-Ring Rubber
22 Socket Head Cap Screw Stainless Steel
23 Socket Head Cap Screw Stainless Steel
24 O-Ring Rubber
25 Washer Stainless Steel
26 Hex Nut Stainless Steel
27 Indicator Plastic
28 Socket Head Cap Screw Stainless Steel
KEY PARTS - SCOTCH YOKE
ITEM DESCRIPTION MATERIAL
1 Yoke Steel
2 Yoke Rollers Steel
3 Bearing Bush DELRIN®/Nylon/td>