ITT Skotch Trifecta T4405F, Инструкции по установке, эксплуатации и обслуживанию

Страница: 18 / 41

ITT
Engineered Valves, LLC Page 18 of 24
Technical Manual No. IOT4400F Effective 8/31/2018
REV LEVEL B
bearing Holder (Item 71) of Bottom Flange Subassembly. Tighten the flange nuts
in a crisscross pattern until snug; making certain flange is not cocked. Torque the
nuts to 200 ft-lbs in crisscross pattern and recheck.
Apply gasket compound to the gasket side of Spring Bucket Subassembly. Press
on Spring Bucket Gasket (Item 32) and apply gasket compound to other side of
Spring Bucket Gasket (item 32). Lubricate the Vent Shaft (Item 90) of Outlet
Valve Subassembly. Slide Spring Bucket Subassembly with gasket onto the Vent
Shaft of Outlet Valve Subassembly. Care not to damage the Seals in Spring
Bucket Subassembly as it slide over the threaded portion of the Outlet Valve
Subassembly. Fasten Spring Bucket Subassembly into Top Body (Item 1). Use
Loctite® 222 and recommended primer on cap screws (Item 31). Place all screws
in place than tighten in crisscross pattern. Ensure to clean excess gasket
compound that may spilled into O-ring groove of Valve Body (Item 1). Lubricate
Cylinder Seal (Item 4) and install Cylinder Seal (Item 4) on groove of Top Valve
Body (Item 1).
Apply gasket compound on the face of the Vent Shaft (Item 90) of Outlet Valve
Subassembly. Press on Piston/Shaft Gasket (Item 24) and apply gasket compound
to other side of the gasket. Slide Outlet Return Spring (Item 28) over the Outlet
Valve Subassembly and on the Spring Bucket Subassembly. Slide Piston (Item
21) over Outlet Valve Subassembly onto Outlet Return Spring (Item 28).
Place the Spring Compressor (P/N 49088) on Piston (Item 21) and secure tie rods
to valve body. Wrench tight the tie rods, in uniform increment, to compress the
Outlet Return Spring (Item 28). Apply antiseize to the threads of Actuator Shaft
(Item 91). Install Washer (Item 20) and Nut (item 19) on Actuator Shaft (Item 91).
Do not allow the outlet shaft to rotate during installation. Hold on flats of actuator
shaft to keep from turning. With Piston firmly seated on vent shaft, fasten top
Piston Nut (Item 19) and secure in place. Remove Spring Compressor (P/N
49088).
Lubricate Piston Seals (Item 22) with a suitable lubricant. Install Piston Seals
(Item 22) and Piston Bearing Strip (Item 23) on Piston (Item 21). Note the
orientation of the Piston Seals (Item 22) refers to drawing 117923 Detail C and
there is a 0.50” to 0.75” gap between either ends of the Bearing Strip (Item 23).
Lubricate the inside of the Cylinder (Item 3). Place the cylinder over the actuator
piston. Rotate cylinder to require orientation. Lubricate and install Cylinder Seal
(Item 4) on Actuator Top Cap (Item 5). Lubricate the Actuator Shaft (Item 91)
and place Top Cap (Item 5) on Actuator Shaft (Item 91). Rotate the Actuator Top
Cap (Item 5) to proper orientation. Place Junction Box Bracket on Top Cap in the
correct orientation and fasten in place with Studs (Item 12) and Nut (Item 13).