NOTE:If the seal wave springs are not properly aligned and seated the plug seal may not hold rated differential pressure.
3.Install the seal
4.Lubricate and install the plug seal
NOTE:Press seal assembly into the plug using hand force only, taking care not to damage seal assembly.
5.Install the correct number of scraper wave springs (158) followed by the scraper (154) into the plug over the seal assembly. For NPS 2" Multiports, install two scraper wave springs. For NPS 3" and NPS 4" Multiports, install one scraper wave spring.
NOTE:Lubricate the spring and scraper so that they stay in place in the plug during assembly. Ensure that the scraper fits freely into the plug. Check by pushing the scraper into the plug using both hands then letting go to see if it returns to its original position.
6.Ensure that the plug bushing (120) has been lubricated and installed into the lower section of the body.
7.Lower the plug (130) vertically into the body ensuring that the plug seal assembly (142) and scraper (154) clear the body (110) bore. When installed, the plug (130) rests on top of the bushing
(120).
8.Grease the tapered bearing cone and rollers (160) and install onto the plug.
C. BONNET: (162)
1.Lubricate and press fit the bearing cup (160) into the bonnet.
2.Lubricate and install the correct number of PTFE backup rings (170) and the upper plug
(167)into the bonnet bore’s upper groove. For ANSI 300/600 rated Multiports, install one PTFE backup ring above the upper plug
3.Lubricate and install the upper plug polypak (164) into the bonnet (polypak is not required for NPS 2" or NPS 3" ANSI 300/600 Multiports).
4.Lubricate and install the bonnet
5.From the bonnet’s top surface, lubricate and install the wiper (171) and grease fitting (178).
NOTE:Pump grease through the grease fitting (178) to fill the bearing bore.
6.For NPS 3" ANSI 900/1500 and all NPS 4" Multiports, install the injection nipple (177), 90° elbow (175), nipple, ball valve (174) and vent plug (176), ensuring that they are clean and well oiled.
7.Position the bonnet onto the Multiport body. For NPS 2" and NPS 3" ANSI 300/600 Multiports, set the bonnet in place with the actuator mounting holes straddling the centreline of the group outlet port. Use two lifting eyes installed into the jacking screw holes provided in the bonnet for NPS 3" ANSI 900/1500 (3/4 NC) and all NPS 4" (1/2 NC) Multiports to vertically lift and set the
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