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10
bonnet in place on the multiport body with the seal injection fitting over the group outlet. The
bonnet stud holes must be aligned with the body’s tapped stud holes.
NOTE:Ensure the bonnet is flat and lowered slowly onto the top of the multiport body in order to
prevent damaging the body o-ring and plug seals. Push the bonnet down by hand or rubber mallet
only.
8. Install the bonnet studs (180). Use Jet-Lube Kopr-Kote anti-seize lubricant or a suitable
equivalent.
9. For NPS 4" ANSI 600/900 and NPS 3" ANSI 900/1500 Multiports, install the two lifting lugs
(179) 90° from the group outlet.
NOTE:The actual lifting lug position is 90° from the position shown in the typical assembly drawing
on page 8.
10. Tighten two of the bonnet nuts (182) at 180° interval. Then ensure that the plug (130) rotates
freely through one revolution.
11. Install and tighten the remaining nuts (182) after confirming that the bonnet (162) and plug (130)
have been centred. Torque the nuts to:
MULTIPORT SIZE
AND RATING
BONNET NUT TORQUE
FT-LBS
NPS 2”
ANSI 300/600
100
NPS 3”
ANSI 300/600
250
NPS 3”
ANSI 900/1500
325
NPS 4”
ANSI 600
450
NPS 4”
ANSI 900
625
D. PLUG SEAL ADJUSTMENT (162):
1. Adjust the plug seal assembly (142) by aligning the plug (130) with an open ( home test) port and
turning the adjusting nut (138) counter clockwise with the adjusting tool (viewing toward the plug
centerline) until the scraper (154) touches the inside wall surface. As the scraper approaches the
wall surface the seal wave springs will be compressed and the adjusting nut will have increased
resistance to turning.
2. Rotate the plug (130) at least one complete revolution to check for binding or excessive turning
torque. Tighten the seal adjusting nut (138) counter clockwise (viewing towards the plug
centerline) to the appropriate torque value with the supplied adjusting tool.
MULTIPORT SIZE
AND RATING
PLUG SEAL TORQUE
FT-LBS
NPS 2”
ANSI 300/600
30
NPS 3”
ANSI 300/600
35
NPS 3”
ANSI 900/1500
30
NPS 4”
ANSI 600
40
NPS 4”
ANSI 900
40
NOTE: Do not over tighten the seal adjusting nut (138), as damage to the plug seal assembly may
result.