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Claw interlock are similar in function to bolt interlocks. Claw interlocks facilitate installation on simple valve or other control applications. The claw/bolt is moved by hand and is not internally driven and has a travel of 75 mm.
Another model of claw interlocks which is internally driven and has a travel of 20 mm is normally used in switchgear.
Special claw size and multiple key versions are available.
Rear mounting holes or through mounting holes versions area available.
The initial claw length from block is available from 20 to 80 mm. The standard claw travel length is 20 mm. For other special requirements, please contact PSPC.
Type 1 : Push type: To unlock valve or any other stem equipment, trap the key in to the lock and pull the shaft to the back from valve stem or any other stem.
Type 2 : Key driven type: To unlock valve or any other stem equipment, trap the key in to the lock and Internal drive to pull the shaft from the equipment.
| MODEL | MATERIAL | FINISH |
|---|---|---|
| ILC1 | BRASS | UNPLATED BRASS |
| ILC 1N | BRASS | NICKEL PLATED |
| ISC | STAINLESS STEEL | MIRROR FINISH |
| MODEL | KEY ROTATION | BOLT ORIENTATION | BOLT INITIAL LENGTH | CLAW SIZE |
|---|---|---|---|---|
| ILC PUSH TYPE | CW/ACW | L/R/T/B L : LEFT R : RIGHT T : TOP B : BOTTOM |
NA | 25/38/50/63 |
| ILC2 INTERNAL DRIVE TYPE |
CW/ACW | L/R/T/B L : LEFT R : RIGHT T : TOP B : BOTTOM |
25 TO 80 MM TRAVEL-20 MM |
7 TO 20 MM |
| ISC PUSH TYE | CW/ACW | L/R/T/B L : LEFT R : RIGHT T : TOP B : BOTTOM |
NA | 25/38/50/63 |
Associated Keys : ILK-100, ILK-200, ILK-300
Dust Cap : ILM-100
Example : ILC-P-1N-CW-R-Push type-0 is claw interlock, pin type, Brass, Nickel Plated, clockwise, right hand bolt assembly, push type, 25 mm claw, without flip cap.
Safety of valves in process industry is vital. Unauthorised operation or operation in wron sequence can lead to dangerous situations and loss of life and property.
Valve interloacks loack the valve in one or two positions (open and / or close). The key is trapped in the valve interlock, when locked in a position to prevent operation. Transfer of key in the unlocked state can br used to sequence the valve operation with other valves or to interlock the valve status with other equipment at site.
Valve interlocks have application in oil & gas, chemical industries, food and other process industries. In addition to conventional Multi Turn Valve Interlocks and Quarter Turn Locks, PSPC offers a wide range of Electrically operated interlocks with Time delay to control Electrically and pneumatically operated Valves.
