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Hydraulic Servo Proportional Valve – P6 Pro

The Domin P6 Pro is a compact servo proportional valve designed for precise control in smaller and mid-sized industrial systems. Its fast response and fine resolution make it well suited to machinery that depends on accurate motion management in a smaller footprint, such as injection moulding, ceramics, and automated handling systems. It installs easily into existing NG06 platforms and brings dependable day to day performance with minimal setup.

Servo Proportional Valves Designed for Industrial Applications

The P Series is designed for industrial and automation applications, such as injection molding equipment, ceramic presses, energy systems, and automated production lines. See how it compares to Domin’s original S Series in industrial applications:

P Series – Proportional Valves

S Series – Servo Valves

  • Accessible pricing for high-volume industrial applications
  • Designed for robust industrial manufacturing, molding, and automation
  • Applications for low to medium response rates (<10 ms for NGO6)
  • Higher cost due to premium performance needs
  • Designed for testing and dynamic applications
  • Applications for fast response rates (<3.5 ms for NGO6)

Popular Upgrade Models:

  • Moog D633: 75% lighter
  • Bosch Rexroth 4WRPEH 6
  • Atos DLHZO
  • Woodward 27B50F

Key Stats:

  • Hysteresis: <0.2%
  • Leakage: <0.13 gpm (<0.5 lpm)
  • Mass: 1.39 lbs (0.63 kg)
  • Rated Flow: 2.6-10.6 gpm (5-40 lpm)
  • Response Time: <10 ms

Key Features:

  • Onboard electronics with spool position feedback
  • Rated flow of up to 10.6 gpm (40 lpm) (at 1,015 psi (70 bar))
  • Mounting interface of ISO 4401-03-02
  • Available on NG06/CETOP3 port pattern as standard
  • Bandwidth > 100 Hz (-3 dB, up to ± 25% FS)
  • Low power consumption of less than 5 W 
  • Chip shear capability of greater than 89 lbf (400 N)
  • Low weight of less than 1.5 lbs (630 g)

Standard Modification Options:

  • Choice of rated flow up to 10.6 gpm (40 lpm)
  • Multiple voltage or current control options
  • Various seal materials available
  • Non-standard configurations available

Technical Data:

DesignDirect Drive Servo Proportional Valve
ActuationRotary-Linear
SizeNG06
Mounting InterfaceISO 4401-03-02
Ambient TemperatureºC (ºF)-20 to +60 (-4 to +140)
Masskg (lb)0.63 (1.39)
Vibration Resistance, All Axesg30
Shock Resistance, All Axesg50
Max. Operating Pressure (P, A, B)Bar (psi)350 (5,000)
Max. Operating Pressure (T)Bar (psi)250 (3,600)
FluidHydraulic Oil DIN 51524-535
Fluid TemperatureºC (ºF)-20 to +80 (-5 to +175)
ViscositycSt5 to 500
Rated Flowl/min (US gal / min)5 to 25 (2.6 to 6.6)
25 to 40 (6.6 to 10.6)
Flow Maximuml/min (US gal / min)56 (14.8)
89 (23.5)
Leakage at 100 barl/min (US gal / min)< 0.5 (0.13)
Pressure Gain%/%> 40
FiltrationISO 4406 (1999) 18/16/13
Response Time at 100% Step Inputms<10
Frequency Response (-3dB gain, ±25% signal)Hz>100
Frequency Response (-90deg phase, ±25% signal)Hz>100
Hysteresis%<0.2
Threshold%<0.1
Null Shift%<1

View performance graphs for the P6 Pro Domin Servo Proportional Valve below including Step Response and Frequency Response:

  • Domin P6 Step Response Graph Chart for Domin Servo Proportional Valves, Graph and Figure
    Step Response Chart for the P6 Pro
  • Domin P6 Frequency Response Graph Chart for Domin Servo Proportional Valves, Graph and Figure
    Frequency Response Chart for the P6 Pro

    • Ordering Code

    P6 Pro 1 2 3 4 5 6 7 8 9

    Any value in range 5 to 40*

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

    R – Suffix for reversal of A and B port e.g. 60R

    * Flow rating set in valve software – dynamic performance measured set at 60lpm flow.

    A

    Axis cut (1% overlap linearized)

    D

    Deadband

    F

    Float Center

    O

    Overlap

    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

    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

    E4

    4 pin

    X

    For other options please enquire

    Y

    Enable mode

    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 members will respond as soon as possible.

    Domin is a supplier and servo proportional valve manufacturer for various applications including die casting, injection molding, wood/timber machines, vibration equipment, metal processing, and simulation.

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