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REPLACE BONNET GASKET: (FIGURE 6)
1. Isolate valve and ensure there is no pressure in pipeline
2. Remove hot melt (1) to expose bonnet bolts (2)
3. Remove actuator
4. Disassembly ISO flange (3) , gland (8) & gland nuts (4) and packing (9)
5. Remove bonnet bolts (2) and lift bonnet (10)
6. Replace bonnet gasket (11) then reassemble bonnet (10) and tighten bonnet bolts (2) (4xthread = req. Nm , See table.).
7. Put packing (9) , gland (8), washers (6) and tighten the gland nuts (4) to press packing (9) until no leakage
8. Put ISO flange (3) and tighten the ISO flange bolts (2) ( 4xthread size=req. Nm, See table )
9. Install actuator
REPLACE OTHER COMPONENTS: (FIGURE 7)
1. Isolate valve and ensure there is no pressure in pipeline
2. Remove hot melt (1) to expose bonnet bolts (2)
3. Remove actuator
4. Disassembly ISO flange (3) , gland (8) & gland nuts (4) and packing (9)
5. Remove bonnet bolts (2) and lift bonnet (10)
6. Push plug (15) out of body (17), replace needed components then reassemble
7. Put assembly of plug , gasket , bonnet (10) and tighten bonnet bolts (2) (4xthread = req. Nm, See table)
8. Put packing (9) , gland (8), washers (6) and tighten the gland nuts (4) to press packing (9) until no leakage
9. Put ISO flange (3) and tighten the ISO flange bolts (2) ( 4xthread size=req. Nm, See table )
10. Install actuator
