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S4 Pro Direct Drive Servo Valve

The Domin S4 Pro Direct Drive Servo Valve (DDV) represents a revolution in servo valve performance. Up to now, the customer has been left with an uncomfortable choice between the large footprint and weight of a DDV and the pressure and reliability limitations of EHSVs. The compromise is particularly acute with low flow applications.

The S4 Pro is based around the miniature 12.2 mm port circle and weighs less than 300 g with spool feedback for a rated 18 lpm. It delivers all the performance you would expect from a high-performance EHSV but is able to deliver it without the parasitic flow and pressure demands of a two-stage servo valve.

Please browse our range below, if you have any specific adjustments or customisations you want, then please contact us direct by email or through the chat.

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S4 Pro Flow 9-18 Lap 0-5 +/-10V E Y Red Oil Centre Viton

Weight: 290 g, Rated Flow: 9-18 lpm, Power Off Position: Centre, Connector: EN 175201-804 6 + PE, Input Signal: +/-10V, Lap Condition: 0-5 %, Seal Material: Viton, Fluid Type: Red Oil, Enable Mode: Yes

£1,679 ex VAT
Delivery: 10-14 weeks Configure and buy

S4 Pro Flow 9-18 Lap 0-5 +/-10V E Y Red Oil Centre NBR

Weight: 290 g, Rated Flow: 9-18 lpm, Power Off Position: Centre, Connector: EN 175201-804 6 + PE, Input Signal: +/-10V, Lap Condition: 0-5 %, Seal Material: NBR, Fluid Type: Red Oil, Enable Mode: Yes

£1,679 ex VAT
Delivery: 10-14 weeks Configure and buy

S4 Pro Flow 9-18 Lap 0-5 +/-10V E Y Red Oil Centre EPDM

Weight: 290 g, Rated Flow: 9-18 lpm, Power Off Position: Centre, Connector: EN 175201-804 6 + PE, Input Signal: +/-10V, Lap Condition: 0-5 %, Seal Material: EPDM, Fluid Type: Red Oil, Enable Mode: Yes

£1,679 ex VAT
Delivery: 10-14 weeks Configure and buy

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Skydrol Centre Viton

Weight: 290 g, Rated Flow: 9-18 lpm, Power Off Position: Centre, Connector: EN 175201-804 6 + PE, Input Signal: +/-10V, Lap Condition: 0-5 %, Seal Material: Viton, Fluid Type: Skydrol, Enable Mode: No

£1,679 ex VAT
Delivery: 10-14 weeks Configure and buy

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Skydrol Centre NBR

Weight: 290 g, Rated Flow: 9-18 lpm, Power Off Position: Centre, Connector: EN 175201-804 6 + PE, Input Signal: +/-10V, Lap Condition: 0-5 %, Seal Material: NBR, Fluid Type: Skydrol, Enable Mode: No

£1,679 ex VAT
Delivery: 10-14 weeks Configure and buy

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Skydrol Centre EPDM

Weight: 290 g, Rated Flow: 9-18 lpm, Power Off Position: Centre, Connector: EN 175201-804 6 + PE, Input Signal: +/-10V, Lap Condition: 0-5 %, Seal Material: EPDM, Fluid Type: Skydrol, Enable Mode: No

£1,679 ex VAT
Delivery: 10-14 weeks Configure and buy

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Red Oil Centre Viton

Weight: 290 g, Rated Flow: 9-18 lpm, Power Off Position: Centre, Connector: EN 175201-804 6 + PE, Input Signal: +/-10V, Lap Condition: 0-5 %, Seal Material: Viton, Fluid Type: Red Oil, Enable Mode: No

£1,679 ex VAT
Delivery: 10-14 weeks Configure and buy

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Red Oil Centre NBR

Weight: 290 g, Rated Flow: 9-18 lpm, Power Off Position: Centre, Connector: EN 175201-804 6 + PE, Input Signal: +/-10V, Lap Condition: 0-5 %, Seal Material: NBR, Fluid Type: Red Oil, Enable Mode: No

£1,679 ex VAT
Delivery: 10-14 weeks Configure and buy

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Red Oil Centre EPDM

Weight: 290 g, Rated Flow: 9-18 lpm, Power Off Position: Centre, Connector: EN 175201-804 6 + PE, Input Signal: +/-10V, Lap Condition: 0-5 %, Seal Material: EPDM, Fluid Type: Red Oil, Enable Mode: No

£1,679 ex VAT
Delivery: 10-14 weeks Configure and buy

S4 Pro Flow 9-18 Lap 0-5 +/-10V E Y Red Oil Centre Viton

S4Pro 18 U0 10V C E Y R V

Connector:EN 175201-804 6 + PE , Enable Mode:Yes , Fluid Type:Red Oil , Input Signal:+/-10V , Lap Condition:0-5 , Power Off Position:Centre , Rated Flow:9-18 , Seal Material:Viton , Weight:290 .

£1,679 ex VAT
Delivery: 2-3 weeks

S4 Pro Flow 9-18 Lap 0-5 +/-10V E Y Red Oil Centre NBR

S4Pro 18 U0 10V C E Y R N

Connector:EN 175201-804 6 + PE , Enable Mode:Yes , Fluid Type:Red Oil , Input Signal:+/-10V , Lap Condition:0-5 , Power Off Position:Centre , Rated Flow:9-18 , Seal Material:NBR , Weight:290 .

£1,679 ex VAT
Delivery: 2-3 weeks

S4 Pro Flow 9-18 Lap 0-5 +/-10V E Y Red Oil Centre EPDM

S4Pro 18 U0 10V C E Y R E

Connector:EN 175201-804 6 + PE , Enable Mode:Yes , Fluid Type:Red Oil , Input Signal:+/-10V , Lap Condition:0-5 , Power Off Position:Centre , Rated Flow:9-18 , Seal Material:EPDM , Weight:290 .

£1,679 ex VAT
Delivery: 2-3 weeks

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Skydrol Centre Viton

S4Pro 18 U0 10V C E N S V

Connector:EN 175201-804 6 + PE , Enable Mode:No , Fluid Type:Skydrol , Input Signal:+/-10V , Lap Condition:0-5 , Power Off Position:Centre , Rated Flow:9-18 , Seal Material:Viton , Weight:290 .

£1,679 ex VAT
Delivery: 2-3 weeks

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Skydrol Centre NBR

S4Pro 18 U0 10V C E N S N

Connector:EN 175201-804 6 + PE , Enable Mode:No , Fluid Type:Skydrol , Input Signal:+/-10V , Lap Condition:0-5 , Power Off Position:Centre , Rated Flow:9-18 , Seal Material:NBR , Weight:290 .

£1,679 ex VAT
Delivery: 2-3 weeks

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Skydrol Centre EPDM

S4Pro 18 U0 10V C E N S E

Connector:EN 175201-804 6 + PE , Enable Mode:No , Fluid Type:Skydrol , Input Signal:+/-10V , Lap Condition:0-5 , Power Off Position:Centre , Rated Flow:9-18 , Seal Material:EPDM , Weight:290 .

£1,679 ex VAT
Delivery: 2-3 weeks

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Red Oil Centre Viton

S4Pro 18 U0 10V C E N R V

Connector:EN 175201-804 6 + PE , Enable Mode:No , Fluid Type:Red Oil , Input Signal:+/-10V , Lap Condition:0-5 , Power Off Position:Centre , Rated Flow:9-18 , Seal Material:Viton , Weight:290 .

£1,679 ex VAT
Delivery: 2-3 weeks

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Red Oil Centre NBR

S4Pro 18 U0 10V C E N R N

Connector:EN 175201-804 6 + PE , Enable Mode:No , Fluid Type:Red Oil , Input Signal:+/-10V , Lap Condition:0-5 , Power Off Position:Centre , Rated Flow:9-18 , Seal Material:NBR , Weight:290 .

£1,679 ex VAT
Delivery: 2-3 weeks

S4 Pro Flow 9-18 Lap 0-5 +/-10V E N Red Oil Centre EPDM

S4Pro 18 U0 10V C E N R E

Connector:EN 175201-804 6 + PE , Enable Mode:No , Fluid Type:Red Oil , Input Signal:+/-10V , Lap Condition:0-5 , Power Off Position:Centre , Rated Flow:9-18 , Seal Material:EPDM , Weight:290 .

£1,679 ex VAT
Delivery: 2-3 weeks

The positive impact of Domin Next Generation Products

  • 40% Fewer Parts
  • 25% Higher Flow
  • 400% Smaller
  • 200%+ Faster

Higher quality hydraulic valves and systems available at a lower price than more established units.

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High quality, world class Hydraulics valves & systems

The Domin direct drive hydraulic servo valves use the most advanced design, analysis, test and manufacturing technologies. This enabled an innovative step change in performance of DDV technology.

The direct drive hydraulic valves use the most advanced design, analysis, test and manufacturing technologies. Giving you are greener, cleaner, efficient and reliable servo systems and valves.

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Valve Emission Savings

1.1 Tonnes CO2

Per Valve Per Year

*  Based on a S6 Pro Valve which will save 17 tonnes of Carbon Dioxide over 15 years.

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Bespoke System,
Professionally Engineered

1. Concept Generation

The product specification is generated with customers, market analysis and engineering calculations at its core. Technology building blocks are combined to create a conceptual design. Key parts are sized, with high-level performance predictions calculated.

2. Design and simulation

Using the latest tools, the concept design is developed and matured. Simulation and analysis is used to validate the mechanical and functional performance, and electronics hardware and firmware developed to control the system.

3. Prototype Manufacture

The latest rapid manufacturing techniques are used to quickly deliver a working prototype unit, with manufacturing process development occurring in tandem in our advanced manufacturing facility.

4. Development & Validation

Prototype units go through a series of representative validation tests to characterise, optimise and validate performance, reliability and operability.

5. Industrialisation

Our focus is always on making a product that delivers real benefit in the real world, and this means focus on ability to ramp to production volume, at a cost that is commercially feasible. Our production facility delivers >20,000 parts per annum, and is constantly expanding.

The product specification is generated with customers, market analysis and engineering calculations at its core. Technology building blocks are combined to create a conceptual design. Key parts are sized, with high-level performance predictions calculated.

Using the latest tools, the concept design is developed and matured. Simulation and analysis is used to validate the mechanical and functional performance, and electronics hardware and firmware developed to control the system.

The latest rapid manufacturing techniques are used to quickly deliver a working prototype unit, with manufacturing process development occurring in tandem in our advanced manufacturing facility.

Prototype units go through a series of representative validation tests to characterise, optimise and validate performance, reliability and operability.

Our focus is always on making a product that delivers real benefit in the real world, and this means focus on ability to ramp to production volume, at a cost that is commercially feasible. Our production facility delivers >20,000 parts per annum, and is constantly expanding.

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