Emergency Shutoff Drive (ESD) for Chlorine Gas
See All Gas Feed SystemsWallace & Tiernan® Emergency Shutoff Drive is the additional safety measure for your chlorine gas application.
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Wallace & Tiernan® Emergency Shutoff Drive is the additional safety measure for your chlorine gas application.
Description
Evoqua's Emergency Shutoff Drive (ESD) ensures the highest level of safety for chlorine gas applications. The fast-acting safety device can immediately close a connected chlorine gas source in the event of a gas leak. Working in connection with a chlorine gas warning device, the ESD reliably closes chlorine gas valves within a designed objective of 3 seconds or less, reducing the total possible chlorine leakage time.
The device is easy to install directly on the chlorine gas valve of each storage tank and is controlled from a standardised electrical control cabinet. The valve automatically closes upon receipt of a closure signal and features an autotest button, enabling you to test the function of each connected valve before leaving an unmanned site.
In the event of a power supply failure, safety is ensured by an integrated, 24-hour battery backup. The ESD can be triggered manually on the control cabinet located outside the storage room using the emergency switch. After securing the environment and eliminating a possible leak, a trained operator must manually re-open the chlorine gas valves.
Features
Features
- Direct cylinder mounting - with or without vacuum regulator
- Multi-cylinder S/o system with single control panel
- Alarm on low battery
- Multicolour display with touch screen
- Data exchange via Modbus TCP & optional Profibus DP
- 1 potential free input from gas warning system
- 1 potential free input from external emergency stop button
- 4 Relay Output for Alarm -Hard wired
a) Mains A/C failure
b) System Error
c) Battery Low
d) Emergency Close - Actuation of the test mode
Benefits
- Increased security of chlorine gas plant & surrounding locality
- Quick closing valves, reducing total possible leakage
- Adjustable closing torque ensures the correct, secure closure is achieved
- Simple assembly on new or existing chlorine cylinders
- Wall mounting bracket for removal when changing bottles
- Compact installation with savings on plant footprint
- Shut-off valves in accordance with DIN 19606: 2020:01 standard
- Minimum maintenance components
- Meets with Cl Institute guidelines
- Wallace & Tiernan® Quality Product
Documentation
- Product Sheet ESD: English574.4 KB
- Product Sheet ESD 6: English239.4 KB
- ESD Product Sheet English 574.4 KB
- Manual ESD Drive W3T543940 749.7 KB
- Manual ESD Drive W3T546351 568.1 KB
- Manual ESD 6: English 1.9 MB