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Aviation equipment and ship equipment >> shipborne automatic >> annunciators, sensors (DBKPTM, DBPTM, SKPK, SKPU, SPKVM, SPKM, SPKTM, SPKUM-D and others)


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Contact position indicators in performance water mud protected SPKVM-3a

Also, this device can be called: SPKVM3a, SPKVM 3a, SPKVM-Зa, SPKVM3a, SPKVM 3a.


SPKVM-3a position indicators in contact water mud protected performance - are used to switch your contacts electric circuits when the preset positions and executive bodies of the reinforcement mechanisms are kinematically linked with rods alarms.

Scope SPKVM-3a: mechanical engineering, shipbuilding, transportation.




Number of control provisions - 3.

Working stroke - 4 ± 0,6 mm.

Force along the axis of the rod - 59 N (6 kgf).

Termination rod - thread M6-6d.

Voltage - 3 V to 36 V.

Current - 0.001 A to 0.5 A.

The frequency - 50 Hz to 400 Hz.

Weight - no more than 1.7 kg.


Operating conditions of the device position indicator SPKVM-3a:


Operating temperature range:

- Ambient air - from 0 ° C to 50 ° C;

- Installation location on the valve - from 0 ° C to 65 ° C.

Emergency mode:

- Fluid temperature - up to 120 ° C;

- Pressure - up to 0.29 MPa (3 kgf / cm 2).

Technical Resource - 20,000 cycles.

Switching frequency per minute - up to 12.

Displacement speed - 0.1 mm / s to 10 mm / sec.

Service life - 17 years.


The manufacturer provides a guarantee of compliance issued by the position sensors SPKVM-3a all the technical requirements provided the customer terms and conditions of use, storage and transportation of installed documentation manuals.

Photos: SPKVM-3a

SPKVM-3a position indicators. Appearance.
SPKVM-3a position indicators. Appearance.