ISS Safety

HSV-R

The HSV-R multi rotation valve interlock kit is suitable for all types and sizes of hand wheel-operated gate, globe and gearbox valves.

With both linear keys inserted into the lock the valve can be operated. Only when the valve is fully opened or closed can one of the keys be released, locking the valve in open or closed position.

HSV-Q

The HSV-Q valve interlock kit for lever operated valves can be installed on any type and size of valve that operates with a 90° or 180° rotation i.e. ball, butterfly and plug valves.

With both linear keys inserted into the lock the valve can be operated. Only when the valve is fully opened or closed can one of the keys be released, locking the valve in opened or closed position.

HSV-M-AT

The HSV-M-AT anti tamper valve interlock kit has been specifically designed to prevent unauthorised operation, violation and sabotage of any size and type of valve including ball, butterfly, gate, globe, gear box, lever or hand wheel operated. In addition the AT includes a case hardened skirt to protect the lower valve assembly from sabotage or tampering. With the coded key removed the ATL lock free wheels ensuring the valve cannot be opened or closed depending on what the process requires. Inserting the key engages the drive allowing the valve to be operated.

HSV-CL

The HSV-CL is a door access interlock designed to work with the HSV valve interlock system key. It is mainly used to control the safe opening and closing of cabinet and pressure doors in a safety critical system.

HSV-KEY

Manufactured of stainless steel the keys are coded in such a way that they only fit each designated valve interlock. Bespoke choice of engraving for each key is shown on the tag plate. The plates have space for four lines of text and are available in blue, red, black, white, yellow and green. This colour system simplifies matching the key to each interlock and clearly shows the condition of the valve from a distance.

HSV-X

Many applications require the use of key exchange boxes as part of a valve interlock safety system. The key exchange box is configured to trap and release keys in a predetermined sequence depending on the operating requirements of the interlocking system. The key exchange box can be configured to provide bi-directional control of up-stream and down-stream operation. They can therefore be used in complex applications.

HSV-SCU

The HSV-SCU key selector unit is a mechanical programmed key exchange unit. It enables the release of the valve interlocking coded operating keys in a stepped sequence by rotating the selector control to the required key release position. The SCU is designed to provide the correct key exchange sequence in non–linear applications such as pig launching and receiving.

HSV-KC

The HSV-KC key cabinet is designed to enhance the control and management of valve interlocking keys on site by securely storing them in dedicated key slots within a locked cabinet. Each key slot is hard coded (a key cannot be physically inserted into the wrong slot), colour coded and engraved with the key tag number for easy identification and location. The glass front enables easy viewing of operational status of the valves within the system.