Black Box AC328A-R4 Spécifications télécharger pdf (Page 12)

VALVETOP

™

D-ESD

SIL-3 Partial Stroke Test Solutions

Convenient Partial

Stroke Testing

Partial Stroke

Test Module

Spool Valve

Integral

Solenoid

™

Switch

Partial Stroke

Conﬁrmation

Switch

The TopWorx Partial Stroke Test Solution comes complete with:

•

Sensor Control Module to partially close the valve without disrupting the process

•

Pass/Fail indication via high/low response on the return signal

•

Open and Closed position sensors for feedback to the DCS or PLC

•

Onboard Diagnostics to enable predictive maintenance and early-warning alerts

•

Aluminum, Composite, and 316L Stainless Steel platforms certiﬁed for use in Flameproof/

Explosion Proof, or Non-Incendive hazardous areas

•

An optional local, lockable partial stroke Test Button integral to the unit

The TopWorx Partial Stroke Test Solution provides Onboard Diagnostics to alert the user

to the following Dangerous Failures:

•

Valve packing/shaft damage

•

Actuator spring fatigue/breakage

•

Solenoid pilot exhaust blockage

•

Solenoid spring failure

TopWorx SIL-3 ESD Valve Controllers provide a complete Partial Stroke Test Solution with unique

features and functionality that enable partial stroke testing of emergency shutdown valves with-

out disrupting or shutting down the process.

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Black Box AC328A-R4 Spécifications Page 12

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