Reassembly
• Perform the above operations in reverse order (respect
tightening torques)
• Replace the O-rings and diaphragm at each disassembly
Slam Shut Reassembly (Version with slam shut)
• The valve plug should be held in an upper position using
a packing gland and a box to facilitate reassembly
• Precaution must be taken concerning the passage of the
valve plug over the segments
Maintenance (continued)
• Lubricate screws before tightening
• Lightly lubricate the O-rings (silicone grease) except for
the valve plug O-ring
• Lightly lubricate the stem (silicone grease)
• Lubricate the release relay mechanism (yoke and bolt)
(molybdenum graphite grease)
• Lubricate the BMS spring (molybdenum graphite grease)
• A special tool is required for reassembling a new orifice
Type EZR
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