Burkert Type 6240 Servo-assisted 2/2 Way Piston Valve





The 6240 valve is a servo-assisted piston valve. The stopper and plunger guiding tube are welded together to enhance pressure resistance and leak-tightness. Various seal material combinations are available depending on the application. The housing design and surface quality enable maximum flow rates. The coils are moulded with chemically resistant epoxy. An optional sliding ring bearings increases the life cycle with dry gases. In combination with a plug in accordance with DIN EN 175301-803 Form A, the valves satisfy protection class IP65. Stainless steel valves satisfy NEMA 4X. This product can be combined with Cable Plug Type 2518 and Cable Plug Type 2513.


  • Servo-assisted and compact piston valve with diameter of up to DN 13
  • Vibration-resistant , screwed coil system
  • Increased leak-tightness with welded plunger guiding tube
  • Safe opening with hard-coupled piston system
  • Explosion proof versions


Technical Data

Product properties

DimensionsDetailed information can be found in chapter “4. Dimensions” on page 7 of datasheet.





Brass, Stainless steel


DimensionsDetailed information can be found in chapter “4. Dimensions” on page 7 of datasheet.
OrificeDN 6, DN 12, DN 13 (steam version)
Duty cycle100% continuous rating
Coil insulation classClass H

Performance data

Responses times 
Standard DN 6

Opening: 10…20 ms

Closing: 40…50 ms

Standard DN 12

Opening: 20…40 ms

Closing: 80…100 ms

Steam version DN 13

Opening: 80…100 ms

Closing: 200…300 ms

High pressure MX3

Opening: 100…200 ms

Closing: 300…500 ms

Electrical data

Voltage tolerance±10%
Electrical power consumptionDetailed information can be found in chapter “5.1. Electrical power consumption” on page 12 of datasheet.

Medium data

Media (High temperature version)Neutral gases and liquids, such as e.g. compressed air, water, hydraulic oil, steam and hot mediums
ViscosityMax. 21 mm2 /sec

Media temperature




Standard high temperature


Steam version DN 13

Approval DIN EN 161 (PO17)

High pressure version MX31 and MX32

Seat seal/Oexternal seal

FKM/FKM: -10 °C…+140 °C

EPDM/EPDM: -30 °C…+120 °C

PTFE/FKM: -10 °C…+140 °C

PTFE/PEEK DN 6: -40 °C…+180 °C

PTFE/PEEK DN 12: -40 °C…+140 °C

FKM/FKM: 0 °C…+140 °C

NBR/NBR (PO17): -10 °C…+80 °C

PCTFE/FKM: -10 °C…+80 °C

PCTFE/EPDM: -30 °C…+80 °C

PCTFE/PEEK: -30 °C…+80 °C

Approvals and certificates

Protection classIP65 with cable plug, X/IECEx junction box version and cable connection version NEMA 4x with cable plug Type 2518 or Type 2509 with stainless steel versions (other versions on request)

Product connections

Port connectionsG ¼, G ⅜, G ½ (NPT and Rc on request), steam version DN 13 also in G ⅜
Electrical connectionTag connector acc. DIN EN 175 301-803 Form A for cable plug Type 2518 Detailed information can be found in chapter “Cable plug Type 2518, Form A according to DIN EN 175301-803” on page 20 of datasheet.

Environment and installation

Ambient temperatureMax. 55 °C
InstallationAs required, preferably with actuator upright

Download Datasheet: Burkert Type 6240 Servo-assisted 2/2 Way Piston Valve

Reference : burkert-usa.com