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Home / Products / Hydraulic Servo Valves / Upgrade to a Domin Servo Valve

Plug-and-Play Upgrade with Domin Valves

Domin offers hassle-free upgrades for customers using Parker, Bosch, Moog, Atos, Woodward, and Star Servo and Proportional Valves. Read the full list of plug-and-play upgrades that we offer for a variety of different manufacturers. Discover how our hassle-free upgrades can elevate your operations.

Out With the Old, In With the Blue

Our range of drop-in replacements guarantees a smooth transition to Domin Servo Valves, delivering enhanced performance and reliability for your systems. Whether you’re initiating a new project or upgrading your current setup, contact us today to explore our variety of plug-and-play solutions tailored to your specific needs.

Domin Servo Valve Upgrades (S Series)

D633

D661

D634

G761

G631

D662

S4 Pro

S6 Pro

S10 Pro

Domin Vs Moog Servo Valve Spec Comparison

S4 Pro vs Moog D633

Domin S4 Pro

Moog D633

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

Rated Flow

up to 4.7 gpm
(18 lpm)

up to 10.6 gpm
(40 lpm)

Mounting Footprint

ISO 10372-01-01 (S01)

ISO 4401 Size 03 (NG6)

Step Response

<3 ms

12 ms

Hysteresis

<1%

<0.2%

Leakage

<0.12 gpm
(<0.45 lpm)

0.04–0.32 gpm
(0.15–1.2 lpm)

Mass

0.64 lbs
(290 g)

5.51 lbs
(2.5 kg)
S6 Pro vs Moog D633

Domin S6 Pro

Moog D633

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

Rated Flow

up to 16.6 gpm
(63 lpm)

up to 10.6 gpm
(40 lpm)

Mounting Footprint

ISO 4401-03-02
(NG06)

ISO 4401 Size 03 (NG6)

Step Response

<3.5 ms

12 ms

Hysteresis

<0.2%

<0.2%

Leakage

<0.3 gpm
(<1.1 lpm)

0.04–0.32 gpm
(0.15–1.2 lpm)

Mass

1.36 lbs
(0.62 kg)

5.51 lbs
(2.5 kg)
S6 Pro vs Moog D634

Domin S6 Pro

Moog D634

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

Rated Flow

up to 16.6 gpm
(63 lpm)

up to 26.4 gpm
(100 lpm)

Mounting Footprint

ISO 4401-03-02
(NG06)

ISO 4401 Size 05 (NG10)

Step Response

<3.5 ms

20 ms

Hysteresis

<0.2%

<0.2%

Leakage

<0.3 gpm
(<1.1 lpm)

0.32–0.53 gpm
(1.2–2.0 lpm)

Mass

1.36 lbs
(0.62 kg)

17.42 lbs
(7.9 kg)
S10 Pro vs Moog D661

Domin S10 Pro

Moog D661

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

Rated Flow

up to 66 gpm
(250 lpm)

up to 52.8 gpm
(200 lpm)

Mounting Footprint

ISO 4401-05-04
(NG10)

ISO 4401 Size 05 (NG10)

Step Response

<7 ms

6.5 to 18 ms

Hysteresis

<0.2%

<0.4%

Leakage

<0.8 gpm
(<3 lpm)

0.7 gpm
(2.6 lpm)

Mass

8.8 lbs
(4 kg)

12.6 lbs
(5.7 kg)

D1FP

D1FB

D3FP

D3FB

DY45

D41FP

S4 Pro

S6 Pro

S10 Pro

S12 Pro

Domin Vs Parker Servo Valve Spec Comparison

S6 Pro vs Parker D1FP / D1FB / D3FP

Domin S6 Pro

Parker D1FP

Parker D1FB

Parker D3FP

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

5,000 psi
(350 bar)

5,000 psi
(350 bar)

Rated Flow

up to 16.6 gpm
(63 lpm)

up to 15.9 gpm
(60 lpm)

up to 7.93 gpm
(30 lpm)

up to 26.4 gpm
(100 lpm)

Mounting Footprint

ISO 4401-03-02
(NG06)

NG06 / ISO 4401 / DIN 24340 / CETOP 03 / NFPA D03

NG06 / ISO 4401 / DIN 24340 / CETOP 03 / NFPA D03

NG10 / ISO 4401 / DIN 24340 / CETOP 05 / NFPA D05

Step Response

<3.5 ms

3.5 ms

30 ms

<6 ms

Frequency Response

>250 Hz

350 Hz

Unknown

200 Hz

Hysteresis

<0.2%

<0.05%

<4% to <6%

<0.05%

Leakage

<0.3 gpm
(<1.1 lpm)

<0.106 gpm
(<0.4 lpm)

<0.016 gpm
(<0.06 lpm)

<0.106 gpm
(<0.4 lpm)

Mass

1.36 lbs
(0.62 kg)

7.93 lbs
(3.6 kg)

4.85 lbs
(2.2 kg)

14.33 lbs
(6.5 kg)
S10 Pro vs Parker D3FP

Domin S10 Pro

Parker D3FP

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

Rated Flow

up to 66 gpm
(250 lpm)

up to 26.4 gpm
(100 lpm)

Mounting Footprint

ISO 4401-05-04
(NG10)

ISO 4401 / NG10 (CETOP 5)

Step Response

<7 ms

<6 ms

Hysteresis

<0.2%

<0.05%

Leakage

<0.8 gpm
(<3 lpm)

<0.106 gpm
(<0.4 lpm)

Mass

8.8 lbs
(4 kg)

14.33 lbs
(6.5 kg)
S12 Pro vs Parker D41FP

Domin S12 Pro

Parker D41FP

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

Rated Flow

up to 153 gpm (580 lpm)

up to 53 gpm
(200 lpm)

Mounting Footprint

ISO 4401-07-07
(NG16)

ISO 4401 / NG16 (CETOP 7)

Step Response

<6.5 ms

13 ms

Hysteresis

<0.2%

<0.1%

Mass

15.4 lbs
(7 kg)

31.3 lbs
(14.2 kg)

4WRPEH 6

4WRPEH 10

4WRLE 10

4WREE 6

4WREE 10

4WRLE 16

S4 Pro

S6 Pro

S10 Pro

S12 Pro

Domin Vs Bosch Rexroth Servo Valve Spec Comparison

S6 Pro vs Bosch Rexroth 4WRPEH 6 / 4WREE 6

Domin S6 Pro

Bosch Rexroth 4WRPEH 6

Bosch Rexroth 4WREE 6

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

4,500 psi
(315 bar)

Rated Flow

up to 16.6 gpm
(63 lpm)

up to 10.5 gpm
(40 lpm)

up to 8.45 gpm
(32 lpm)

Mounting Footprint

ISO 4401-03-02
(NG06)

ISO 4401-03-02-0-05

ISO 4401-03-02-0-05

Step Response

<3.5 ms

<10 ms

Unknown

Hysteresis

<0.2%

<0.1%

<0.1%

Mass

1.36 lbs
(0.62 kg)

6.39 lbs
(2.9 kg)

5.29 lbs
(2.4 kg)
S10 Pro vs Bosch Rexroth 4WRPEH 10

Domin S10 Pro

Bosch Rexroth 4WRPEH 10

Max Operating Pressure

5,000 psi
(350 bar)

4,500 psi
(315 bar)

Rated Flow

up to 66 gpm
(250 lpm)

up to 26.4 gpm
(100 lpm)

Mounting Footprint

ISO 4401-05-04
(NG10)

ISO 4401-05-04-0-05

Hysteresis

<0.2%

<0.2%

Mass

8.8 lbs
(4 kg)

15.65 lbs
(7.1 kg)
S12 Pro vs Bosch Rexroth 4WRLE 16

Domin S12 Pro

Bosch Rexroth 4WRLE 16

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

Rated Flow

up to 153 gpm (580 lpm)

up to 66 gpm
(250 lpm)

Mounting Footprint

ISO 4401-07-07
(NG16)

ISO 4401-07-07-0-05

Hysteresis

<0.2%

<0.1%

Mass

15.4 lbs
(7 kg)

23.3 to 26.9 lbs
(10.6 to 12.2 kg)

27A

27B

27C

27E

27G

S4 Pro

S6 Pro

S10 Pro

DLHZO

DLKZOR

DPZO

S4 Pro

S6 Pro

S10 Pro

S12 Pro

Domin vs Atos Servo Valve Spec Comparison

S6 Pro / S10 Pro vs Atos DLHZO / DLKZOR

Domin S6 Pro

DLHZO

DLKZOR

Domin S10 Pro

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

4,500 psi
(315 bar)

5,000 psi
(350 bar)

Rated Flow

up to 16.6 gpm
(63 lpm)

up to 10.5 gpm
(40 lpm)

up to 26.4 gpm
(100 lpm)

up to 66 gpm
(250 lpm)

Mounting Footprint

ISO 4401-03-02
(NG06)

ISO 4401-03-02-0-05

ISO 4401-05-04-0-05

ISO 4401-05-04
(NG10)

Step Response

<3.5 ms

<6.5 ms

<15 ms

<7 ms

Hysteresis

<0.2%

<0.1%

<0.1%

<0.2%

Leakage

<0.3 gpm
(<1.1 lpm)

<0.23 gpm
(<0.9 lpm)

<0.39 gpm
(<1.5 lpm)

<0.8 gpm
(<3 lpm)

Mass

1.36 lbs
(0.62 kg)

6.17 lbs
(2.8 kg)

10.36 lbs
(4.7 kg)

8.8 lbs
(4 kg)
S10 Pro / S12 Pro vs Atos DPZO

Domin S10 Pro

Domin S12 Pro

DPZO

Max Operating Pressure

5,000 psi
(350 bar)

5,000 psi
(350 bar)

5,000 psi
(350 bar)

Rated Flow

up to 66 gpm
(250 lpm)

up to 153 gpm
(580 lpm)

up to 113 gpm
(430 lpm)

Mounting Footprint

ISO 4401-05-04
(NG10)

ISO 4401-07-07
(NG16)

ISO 4401-07-07-0-05

Step Response

<7 ms

<6.5 ms

<25 to <75 ms

Hysteresis

<0.2%

<0.2%

<0.1%

Mass

8.8 lbs
(4 kg)

15.4 lbs
(7 kg)

21.38–42.10 lbs
(9.7–19.1 kg)

200

300

550

650

890

990

1550

S4 Pro

S6 Pro

S10 Pro

S12 Pro

Domin Proportional Valve Upgrades (P Series)

Moog

Bosch Rexroth

Atos

Woodward

P6 Pro

D633 (75% lighter)

4WRPEH 6

DLHZO

27B50F

P10 Pro

D634

4WRPEH 10

DLHZO

27G50F

Need More Help? Talk with a Specialist

Contact a Specialist
4 hydraulic servo valves from Domin S4 Pro, S6 Po, S10 Pro, S12 Pro. Blue hydraulic servo valves, direct drive valves

Servo Valve & Proportional Valve Replacement Made Easy

Upgrading or replacing a servo valve shouldn’t mean redesigning your entire system. That’s why Domin servo valves are engineered as plug-and-play replacements for many of the most widely used valves on the market today.

Popular Models Compatible with Domin Servo Valves

  • Moog
  • Bosch Rexroth
  • Parker
  • Atos
  • Woodward
  • Star

Compatible, Reliable, Ready to Go

Domin’s S4 Pro, S6 Pro, S10 Pro, S12 Pro, P6 Pro, P10 Pro, and P12 Pro are designed to match industry-standard form, fit, and function requirements. This means existing connectors, manifolds, and system architectures can remain intact, saving time and eliminating costly rework. For operators, this translates into a straightforward path to improved efficiency, accuracy, and reliability, while not having to sacrifice downtime. 

Faster Availability, Lower Procurement Risk

Traditional suppliers often require 12–16 week lead times for replacement valves. Through Domin’s Lead Time Zero initiative, IC-Fluid Power stocks high-demand models locally and can ship same day or next. This reduces procurement risk and ensures that when a replacement is needed, it’s available in as soon as overnight, depending on location and optional expedited shipping. 

An Upgrade in Every Sense

Beyond compatibility, Domin valves represent a new generation of servo technology. Combining the precision of two-stage designs with the strength and safety of direct drive, these valves offer superior robustness, energy efficiency, and performance. Replacing an older model doesn’t just keep your system running, it improves it.

Explore Our Domin Valve Models

Up to 5 gpm
(18 lpm)

Hydraulic Servo Valves – S4 Pro

Smallest direct drive valve weighing <0.64 lbs (300 g)

1.6 to 15.9 gpm
(6 to 60 lpm)

Hydraulic Servo Valves – S6 Pro

Ultimate power density weighing only 1.21 lbs (550 g)

13 to 66 gpm
(50 to 250 lpm)

Hydraulic Servo Valves – S10 Pro

Most efficient direct drive valve for high flow applications

66 to 153 gpm
(250 to 580 lpm)

Hydraulic Servo Valves – S12 Pro

Next evolution in high-performance, high-flow valves

domin blue hydraulic proportional valve P6 pro series

2.6 to 10.6 gpm
(5 to 40 lpm)

Hydraulic Servo Proportional Valves – P6 Pro

Compact, precise control in small/mid industrial systems

10.6 to 42 gpm
(40 to 160 lpm)

Hydraulic Servo Proportional Valves – P10 Pro

High flow valve for demanding heavy duty applications

42 to 153 gpm
(160 to 580 lpm)

Hydraulic Servo Proportional Valves – P12 Pro

Two-stage industrial servo proportional valves for NG16 systems

Contact

+1.877.ICFLUID

Request a Price Quote

Brochures & Catalogs

Download Now

Frequently Asked Questions

1-2 days.
 
Through Domin’s Lead Time Zero Initiative, popular Domin valves from the S and P Series are stocked at IC-Fluid Power’s warehouse and can ship the same day or next. Request a quote here.

The full valve model code.
 
For an existing valve replacement, please provide the full model code from the valve nameplate or original documentation. Request a price quote for a Domin valve here or call us at 419.661.8811.

To help us identify the right valve for your application, please provide the required flow rate first. This determines which valve model you need. For example, an S6 Pro or S10 Pro.
 
Once the valve model is selected, complete the SKU Selection section included on each model’s data sheet. (For example, the SKU Selection section for the S6 Pro is located on page 6 of the S6 Pro Data Sheet. See the example below).
 
The SKU Selection will ask for details including:

  • Rated flow
  • Fluid type
  • Spool lap condition
  • Enable mode
  • Input/output signal
  • Electrical connector
  • Power-off position
  • Energy

Need help? Reach out to one of our engineers to help you correctly configure your valve at us@icfluid.com.