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S10 Pro Servo Valve FAQs

The S10 Pro has a flow rate of 13 to 66 gpm (50 to 250 lpm) and response rate of <7 ms. These valves are ideal for high flow applications that do not need the full complexity, max flow, and cost of the two-stage S12 Pro.

	Flow Rate	Response Rate
S4 Pro	0.2 to 5 gpm (0.5 to 18 lpm)	<3 ms
S6 Pro	2.6 to 16.6 gpm (5 to 63 lpm)	<3.5 ms
S10 Pro	13 to 66 gpm (50 to 250 lpm)	<7 ms
S12 Pro	66 to 153 gpm (250 to 580 lpm)	<6.5 ms

Compare Domin S Servo Valves

Die casting, injection molding, wood/timber machines, vibration equipment, metal processing, and hydraulic presses.

The S10 Pro is the most efficient direct drive valve for applications needing large flow rates (up to 66 gpm). Similar to the S6 Pro, the S10 Pro features a contaminant-resistant design. In timber processing, for example, it’s durable enough to withstand chip sheers and vibration at high cycles. This applies to similar harsh industrial environments like die casting, injection molding, and press applications.

Yes. The S10 Pro features a standard NG10 port pattern.

The S10 Pro is compatible with the mounting patterns/interfaces of NG10, CETOP 5, S77 and ISO 4401-05-04.

Hydraulic Servo Valves – S10 Pro

Name: Hydraulic Servo Valves – S10 Pro
Brand: Domin

Unrivaled Performance and Efficiency

The S10 Pro is an efficient hydraulic servo valve designed for NG10 ports (CETOP 5). Its performance includes a flow range of 13-66 gpm (50-250 lpm), frequency over 140 Hz, and a fast response time of <7 ms. It is the most efficient direct drive valve for high flow applications in pressing, power generation, and large testing rigs.

Designed to sustain high bandwidth operation at exceptional flows without compromising on operating pressures or duty cycles, the S10 Pro is the pinnacle of reliability and versatility. Where other servo proportional valves struggle with packaging size and weight, the S10 Pro rises above, offering a lighter and more compact alternative to traditional electrohydraulic servo valves.

Unlock massive energy savings with the Domin S10 Pro series. Whether you’re dealing with high flows or demanding applications, its single-stage design ensures optimal performance every time.

Available on NG10 port pattern as standard. S77 adaptors available.

We also offer models with lower and higher flow rate capabilities. The S6 Pro, our most popular model, has higher performance capabilities of <3.5ms response rate and a flow range of 1.6 to 15.9 gpm (6 to 60 lpm). Our S12 Pro uses the S6 Pro as it’s first stage to achieve flow rates of up to 153 gpm (580 lpm). The P10 Pro has less dynamic performance, but is more cost-effective for applications that do not need an ultra-fast response rate.

Popular Upgrade Models:

Bosch Rexroth 4WRPEH 10: 42% smaller
Woodward 27G: 43% higher bandwidth
Parker D3FP: 16% lighter
Moog D634

Key Stats:

Hysteresis: <0.2%
Leakage: <0.8 gpm (<3 lpm)
Shock Resistance: 50 g
Frequency Response: >140 Hz
Rated Flow: 13 to 66 gpm (50 to 250 lpm)
Flow Maximum: 125 gpm (475 lpm)
Response Time: <7 ms
Mounting Interface: ISO 4401-05-04

Key Features:

Onboard electronics with spool position feedback
Rated flow of up to 250 lpm at [1,015 psi (70 bar)]
Based on the NG10 port pattern
Bandwidth > 150 Hz (-3 dB, up to ± 25% FS)
Chip shear capability of >157 lbf (> 700 N)
Valve mass of 8.8 lb (4.2 kg)

Standard Modification Options:

Rated flow rates of up to 66 gpm (250 lpm)
Multiple voltage or current control options
Various seal materials available
Non-standard configurations available

Technical Data:

Design		Direct Drive Servo Valve
Actuation		Rotary-Linear NG10 ISO
Size		NG10
Mounting Interface		ISO 4401-05-04
Ambient Temperature	ºC (ºF)	-20 to +60 (-4 to +140)
Mass	kg (lb)	4 (8.8)
Vibration Resistance	g	30. 3 axes
Shock Resistance	g	50

Max. Operating Pressure (P, A, B, T)	Bar (psi)	350 (5,000)
Fluid		Hydraulic Oil DIN 51524-535
Fluid Temperature	ºC (ºF)	-20 to +80 (-5 to +175)
Viscosity	cSt	5 to 500
Rated Flow	l/min (US gal / min)	50 to 170 (13 to 66) / 170 to 250 (44.9 to 66.0)
Flow Maximum	l/min (US gal / min)	321 (85) / 475 (125)
Pressure Gain	% / %	>40
Leakage at 100 bar	l/min (US gal / min)	<1 (0.4) / <3 (0.8)
Filtration		ISO 4406 (1999) 18/16/13

Response Time at 100% Step Input	ms	<7
Frequency Response (-3dB gain, ±25% signal)	Hz	>120 / >100
Frequency Response (-90deg phase, ±25% signal)	Hz	>140 / >130
Hysteresis	%	<0.2
Threshold	%	<0.1
Null Shift	%	<1

View performance graphs for the S10 Pro Domin Servo Valve below including Step Response, Flow vs Command, Frequency Response, and Pressure Gain for 50lpm-100lpm, 100lpm-170lpm, and 170lpm-250lpm:

Step Response (50-100lpm)
Flow vs Command (50-100lpm)
Frequency Response (50-100lpm)
Pressure Gain (50-100lpm)
Step Response (100-170lpm)
Flow vs Command (100-170lpm)
Frequency Response (100-170lpm)
Pressure Gain (100-170lpm)
Step Response (170-250lpm)
Flow vs Command (170-250lpm)
Frequency Response (170-250lpm)
Pressure Gain (170-250lpm)

Ratings of the valve electronics vary based on selected command input.

Absolute Maximum Ratings*		Min.	Typ.	Max.
Supply Voltage	V	0	–	30
Differential Input Signal	V	-10.5	–	10.5
Input Signal Common Mode Offset	V	-10	–	10

Normal Operating Conditions		Min.	Typ.	Max.
Supply Voltage	V	22	24	30
Peak Current Consumption**	A	–	–	15
Quiescent Power Draw	W	–	2.5	–
Differential Input Signals	V	-10	–	10
Input Impedance	KΩ	200	–	–
Output Signal	V	-10	–	10
Output Impedance	Ω	–	47	–
Output Load Impedance	KΩ	1	–	–

Absolute Maximum Ratings*		Min.	Typ.	Max.
Supply Voltage	V	0	–	30
Differential Input Signal	mA	-25	–	25
Input Signal Common Mode Offset	V	-10	–	10

Normal Operating Conditions		Min.	Typ.	Max.
Supply Voltage	V	22	24	30
Absolute maximum current draw**	A	–	–	15
Quiescent Power Draw	W	–	2.5	–
Differential Input Signals	mA	20	–	20
Input Impedance***	Ω	–	499	–
Output Signal	mA	-10	–	10
Output Load Impedance*****	Ω	–	–	650

Absolute Maximum Ratings		Min.	Typ.	Max.
Supply Voltage	V	0	–	30
Differential Input Signal	mA	-25	–	25
Input Signal Common Mode Offset	V	-10	–	10

Normal Operating Conditions		Min.	Typ.	Max.
Supply Voltage	V	22	24	30
Absolute maximum current draw**	A	–	–	15
Quiescent Power Draw	W	–	2.5	–
Differential Input Signals	mA	20	–	20
Input Impedance***	Ω	–	499	–
Output Signal	mA	-20	–	20
Output Load Impedance*****	Ω	–	–	650

Absolute Maximum Ratings*		Min.	Typ.	Max.
Supply Voltage	V	0	–	30
Voltage Mode Differential Input Signal	mA	-25	–	25
Input Signal Common Mode Offset	V	-10	–	10

Normal Operating Conditions		Min.	Typ.	Max.
Supply Voltage	V	22	24	30
Absolute maximum current draw**	A	–	–	15
Quiescent Power Draw	W	–	2.5	–
Differential Input Signals	mA	4	–	20
Differential Input Signals for Drive Off*****	mA	-20	–	2
Input Impedance***	Ω	–	499	–
Output signal	mA	4	–	20
Output Load Impedance*****	Ω	–	–	650

Absolute Maximum Ratings*		Min.	Typ.	Max.
Supply Voltage	V	0	–	30
Voltage Mode Differential Input Signal	mA	-5.5	–	5.5
Input Signal Common Mode Offset	V	-5	–	5

Normal Operating Conditions		Min.	Typ.	Max.
Supply Voltage	V	22	24	30
Absolute maximum current draw**	A	–	–	15
Quiescent Power Draw	W	–	2.5	–
Differential Input Signals	V	-5	–	5
Input Impedance	kΩ	200	–	–
Output Signal	V	-5	–	5
Output Impedance	Ω	–	47	–
Output Load Impedance	kΩ	1	–	–

Valves can be provided with an enable function. This allows the valve to be enabled or disabled by varying the voltage into the enable pin. Note that valves with code C command type can also be enabled or disabled using the command signal; see the corresponding table for further details.

Normal Operating Conditions		Min.	Typ.	Max.
Voltage for Drive Enable*	V	9	–	60
Voltage for Drive Disable	V	0	–	2
Input Impedance	Ω	–	15	–

* The enable pin is pulled up to Supply + within the valve via 30k. The enable pin may be left floating to enable the valve.

* Conditions outside of the absolute maximum ratings may cause permanent damage to the valve. Operation of the product outside of the nominal operating conditions is not guaranteed and may affect product reliability.

** Maximum current draw occurs during chip shear events or operation at high frequencies (e.g. Close to 3dB frequency) and at maximum rated flow. Typical operating conditions require significantly less current.

*** Current inputs use a 0.1% tolerance shunt resistor to measure demand current.

**** The value of the shunt resistor to measure output current should not exceed stated maximum value.

***** A current in this range will disable the motor drive until a current outside this range is received at the command input.

Type: Case Mounted
Termination: Connector according to EN 175201-804/MIL 5015 equivalent, shell size 14
Number of Contacts: 7

Pin	Function	Desc.
A	Supply +	+24 V
B	Supply 0 V	0 V
C	Output – Enable Input	Output 0 V Reference Drive Enable Input*
D	Input +	Differential Input, +
E	Input –	Differential Input, –
F	Output +	Output Signal
G	Earth	–

* When the enable function is selected, the function of pin C is the enable input. This replaces the standard pin function.

Type: Case Mounted
Termination: Amphenol™ ACS02
Number of Contacts: 4

Pin	Function	Desc.
A	Supply +	+24 V
B	Input +	Differential Input, +
C	Input –	Differential Input, –
D	Supply 0 V	0 V

Unit Dimensions

Nominal dimensions are displayed in mm. Bracketed dimensions are in inches. Not to scale. Note X and Y directions.

Mounting Surface Pattern

	Dia Ø mm	X Position mm	Y Position mm
P	11.2	27	6.3
A	11.2	16.7	21.4
B	11.2	37.3	21.4
T	11.2	3.2	32.5
T1	11.2	50.8	32.5
X1*	6.3	-8.0	11
Y*	6.3	62.0	11
F1	M6	0	0
F2	M6	54	0
F3	M6	54	46
F4	M6	0	46

* Valves includes seal grooves for X and Y ports for installation in existing systems X and Y connections are NOT required for valve operation.

Bolts (F1, F2, F3, F4)

Type: M6 x 120 DIN EN ISO 4762-10.9
Required Torque: 13 Nm (9.59 ft-lbf)

O-Rings (P, A, B, T, T1, X, Y)

Type: 5x ISO 3601-1-014
Material: NBR, EPDM or Viton, 70 Shore A
Hardness: 70 Shore A

Type: *2x ISO 3601-1-011 (If Manifold Has X & Y Ports)
Material: NBR, EPDM or Viton, 70 Shore A
Hardness: 70 Shore A

* Port X & Y not in use, seals are for blanking only.

Standards Reference

EMC Regulations: EN 61000-6-2 / EN550011:1998+A1
Performance Tests: ISO 10770-1
Pressure Rating: ISO 10771
Hydraulics Interface: ISO 10372-01-01-0-92

Ordering Code

S10 Pro 1 2 3 4 5 6 7 8 9

Any value in range 50 to 250

Rate flow in l/min for 35 bar ∆P per control edge

R – Suffix for reversal of A and B port e.g. 250R

A	Axis cut (1% overlap linearized)
O	3% Overlap (linearized to 50% gain over center)
D	10% Overlap (with flow dead band)
X	For other options please enquire

A	± 10 V
B	± 20 mA
C	4 to 20 mA
D	± 5 V
E	± 5 mA
F	± 10 mA
G	± 50 mA
H	± 40 mA
I	± 25 mA
X	For other options please enquire
	For differing input and output signals, use two letters, e.g. AC denotes ± 10V input and 4 to 20 mA output

C	Center
X	For other options please enquire

E	6 pin + PE circular connector *
E4	4 pin circular connector *
X	For other options please enquire

* EN 175201-804/MIL 5015 equivalent connector, shell size 14

Y	Enable mode on (Only available with connector option E)
N	No enable functionality

R	Recommended – any hydraulic oil in accordance with DIN 51524, filtered in accordance with ISO4406 18/16/13. Compatibility with water-free synthetic fluids available on enquiry.
X	For other options please enquire

N	Nitrile (Shore 90)
V	Viton (Shore 85)
X	For other options please enquire

Assigned individually to any with customized options upon enquiry

Variants on Request

Domin is proud of their ability to offer tailored solutions that meet customers’ specific needs. If you require a non-standard configuration, or a bespoke modification, we are confident we can provide you with the best solution. Talk to us here and one of our team will respond as soon as possible.