Rotork-Schischek contact worldwide Data sheets and certification Applications for chemistry, pharmacy and general industry Applications for HVAC systems, sewage plants, landfills, power plants Applications for FPSO, ship-building, offshore, onshore Schischek – Home Schischek – Home

Company

you are here

Products/Solutions

Explosion Proof

Application Areas

Service/Downloads

Contact

Products | Valve actuators with spring return ExMax + LIN Schischek GmbH Explosionproof Ex..Red..In..

Linear valve actuators with spring return ExMax + LIN
ATEX 2014/34/EU | Explosion proof | zone 1, 2, 21, 22

ExMax + LIN linear valve actuators with spring return

Linear valve actuators | 500-3.000 N

Measurements of linear unit LIN: L × W × H = 160 × 141 × 206 (+ stroke) mm

Measurements in mm

Description – Linear valve actuator with spring return ExMax + LIN

  • ExMax + LIN linear valve actuators with spring return for automation of globe- or 3-way valves
  • Use as actuator with safety function in hazardous areas in zone 1, 2, 21
    or 22, On-off or 3-pos. actuator or modulating actuator
  • Optional available in stainless steel or with offshore/marine coating

ExMax + LIN – Linear unit

500-3.000 N24-240 VAC / DC50-60 HZ7,5 / 10 / 15 / 20 / 30 / 42 mm0,1-15 sec./mm3 / 10 sec. (size S), 20 sec. (size M)On-off, 3-pos, 0-10 V DC, 4-20 mAover integrated terminal box16 × 16 mmAluminium / IP66 (actuator)-20°…+40°C (at T6) / -20°…+50°C (at T5)Cable ca. 1 mapprox. 8 kg (size S), approx. 14 kg (size M)gases, mists, vapours, dustzone 1, 2, 21, 22ATEX, IECEx, EAC, INMETRO KOSHA¹, UL², CSA²¹ ExMax size S only | ² ...-A version only

Selection of recommended actuators in relation of force and max. stroke

Type LIN LIN-7.5 LIN-10 LIN-15 LIN-20 LIN-30 LIN-40
Force\Stroke 7,5 mm 10 mm 15 mm 20 mm 30 mm 42 mm
500 N ExMax-
15-..F
ExMax-
15-..F
ExMax-
15-..F
ExMax-
15-..F
ExMax-
15-..F
ExMax-
30-..F
800 N ExMax-
30-..F
1.000 N ExMax-
30-..F
ExMax-
50-..F
1.500 N ExMax-
30-..F
ExMax-
50-..F
2.000 N ExMax-
30-..F
ExMax-
30-..F
ExMax-
50-..F
2.500 N ExMax-
50-..F
3.000 N

Attention:
At strokes between two values use the next higher linear unit (e.g. 24 mm stroke = LIN-30).

Limitation of resolution at YF-actuators with strokes < nominal (motor blockade)!

Note the maximum force of the actuator to prevent damage to your valve!

Info:
Details about suitable actuators with spring return see here

Nominal force (N) at spring of actuator in relation of max. stroke of LIN at  temperatures between −20…+40 °C

Nominal force (N) LIN-7.5 LIN-10 LIN-15 LIN-20 LIN-30 LIN-40
ExMax-15-..F 1.500 1.500 1.000 800 500
ExMax-30-..F 3.000 3.000 2.000 1.500 1.000 800
ExMax-50-..F 3.000 3.000 2.000 1.500

Attention:

Blocking force in motor is round about 3 to 4 times larger than nominal force.

Note valve dimensioning!

Limitation of resolution at YF-actuators with strokes < nominal (motor blockade)!

Note the maximum force of the actuator to prevent damage to your valve!

Nominal force (N) at spring of actuator in relation of max. stroke of LIN at  temperatures between 0…+40 °C

Nominal force (N) LIN-7.5 LIN-10 LIN-15 LIN-20 LIN-30 LIN-40
ExMax-15-..F 3.000 3.000 2.000 1.600 1.000
ExMax-30-..F 6.000 6.000 4.000 3.000 2.000 1.600
ExMax-50-..F 6.000 6.000 4.000 3.000

Attention:

Blocking force in motor is round about 1,5 to 2 times larger than nominal force.

Note valve dimensioning!

Above mentioned values are nominal trusts with performed self adjustment drive!

The maximum trusts can read values which are up to three to four times higher than values of tables! Without performed self adjustment drive there can occur much higher trust values, which can cause damages on the mentioned valve or linkages!

Delivery

  • Linear unit, suitable for all ..Max-..-F actuators size S or M

Special models painted (coated) – ExMax-...-CTS / CTM (size S or M) + LIN-...-CT

  • ExMax-...-CTS / CTM: Aluminium housing with seawater proof offshore/marine coating, resistant against corrosive and maritime atmosphere, some parts nickel plated
  • LIN-...-CT: Aluminium housing with seawater proof offshore/marine coating, resistant against corrosive and maritime atmosphere.
    Lifting rod, connecting parts and screws in stainless steel (VA)
  • Suitable for e.g. for offshore or onshore applications

Valve adaptation / neccessary accessories

  • To select the right valve adaptation and get the right price information
    the following data are required:

    1. Valve manufacturer
    2. Valve type
    3. Valve nominal size (diameter) DN

  • For adaptations which are still designed by Schischek this data are minimum requirements
  • To design new adaptations we need additional details of the valve body
    as well as drawings
  • At purchase order you have to order both parts – actuator + adaptation
back to Product choice
to the top

Schischek News

New content on Schischek Homepage

Colour Code

ATEX products for
zone 1, 2, 21, 22
(e.g. ExMax)

ATEX products for
zone 2, 22
(e.g. RedMax)

Products for
safe area
(e.g. InMax)

Offshore/Marine
Coated versions
(e.g. ..Bin..-CT / OCT)

Stainless steel versions AISI 316
(e.g. ExCos-P)