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Slide valve removal
Section 5: Supplemental information
Owner and operator manual
January 2015
3-9008-001 Rev M
5.5.4
Slide valve removal
2" - 14" Only - From inside the slide valve cavity of the Body (4), remove the Slide Valve Strip (3),
Slide Valve Carrier (17), Slide Valve Springs (15) and Slide Valve Carrier Guides (16). These items
will not be reused. Their replacements are in the parts kit.
16" Only - From inside the slide valve cavity of the Body (4), remove the Slide Valve Strip (3),
Slide Valve Carrier (17), Slide Valve Springs (15) and Slide Valve Carrier Guides (16C). These
items will not be reused except the Slide Valve Carrier Guides. The replacements of the other
items are in the parts kit.
5.5.5
Re-assembly
Some assembly may be required, of the Soft Seat Slide Valve sub-assembly prior to installing
into the Body (4) slide valve cavity. If so, use the following steps (refer to
):
1.
On a clean sturdy surface, place the Soft Seat Slide Valve Strip (3-SS) so that the tapered
surface is facing upwards. Lubricate the tapered surface with a low-viscosity lubricant
or oil suitable for use in the flow media subjected to the Senior.
2.
Place the tapered surface of the Soft Seat Slide Valve Carrier (17-SS) against the tapered
surface of the Soft Seat Slide Valve Strip (3-SS) being certain that the rack profiles of the
Slide Valve Carrier (17) are parallel with the assembly surface.
3.
Insert the Slide Valve Assembly Machine Screw (47) through the Soft Seat Slide Valve
Spring (15-SS) and then through the Slide Valve Assembly Flat Washer (46).
4.
Add a thread sealant (Loc-Tite or equal) to the threads of the Slide Valve Assembly
Machine Screw (47) and insert the Screw/Spring/Washer sub-assembly through the slot
of the Soft Seat Slide Valve Carrier (17-SS). Install it into the threaded hole of the Soft
Seat Slide Valve Strip (3-SS). Tighten until the threads bottom-out.
Important
For 12” and smaller assemblies, the Plate carrier positioner (17B) is cast integrally on the bottom
of the soft seat slide valve carrier (17-SS).
5.
Turn the Soft Seat Slide Valve sub-assembly over to expose the grooved surface of the
Soft Seat Slide Valve Strip (3-SS). Lubricate the Soft Seat O-Ring (45) with a low-
viscosity oil and install into the grooved portion of the Slide Valve Strip (3).
Important
Do not allow the O-Ring (45) to "roll" and/or expose its molded flash joint. This could prevent the
O-Ring (45) from sealing during the function test.
6.
Install the Soft Seat Slide Valve sub-assembly into the Body (4) slide valve cavity.
