Service kits available, Servicing filter element, Servicing regulator – Wilkerson SB2 User Manual

Page 2: Service, Figure 1

SB1 & SB2 Filter / Regulator Series

83-949-000

Figure 1

Servicing Filter Element -

(Refer to Figure 1)

1. Unscrew and remove bowl.
2. Unscrew the filter holder from body and then remove element.
3. Clean all internal parts and bowl before reassembling.
4. Install new element. IMPORTANT: The Filter / Regulator will not operate

properly if the deflector is not installed properly. The deflector must be
installed between the filter stem and the filter body.

5. Attach filter holder and finger tighten firmly.
6. Replace bowl seal. Lightly lubricate new seal to assist with retaining it in

position.

7. Install bowl into body and tighten; hand tight, plus 1/4 turn.

Servicing Regulator -

(Refer to Figure 1)

1A. On SB1, disengage the adjusting knob by pulling upward. Turn adjusting

knob counterclockwise until the compression is released from the pressure
control spring.

1B. On SB2, push down on the adjusting knob while turning knob

counterclockwise until the compression is released from the pressure control
spring. (Knob is locked when up.)

2. Remove the bonnet and bowl assemblies by unscrewing the bonnet and

bowl from the body.

3. Remove diaphragm assembly from bonnet assembly.
4. Remove filter stem, filter element, poppet assembly, poppet return spring.
5. Clean and carefully inspect parts for wear or damage If replacement is

necessary, use parts from service kits. Clean bowl.

6. Lubricate o-rings with grease found in service kits.

Service

Caution: Disconnect or shut off air supply and exhaust the primary
and secondary pressures before servicing unit. Turning the adjusting
knob counterclockwise does not vent downstream pressure on non-
relieving regulators. Downstream pressure must be vented before
servicing regulator.
Caution: Grease packets are supplied with kits for lubrication of
seals. Use only mineral based grease or oils. Do not use synthetic
oils such as esters. Do not use silicones.

Note: After servicing unit, turn on air supply and adjust regulator to the

desired downstream pressure. Check unit for leaks. If leakage occurs,
do not operate - conduct repairs and retest.

7. Install poppet return spring, poppet assembly, and filter holder. IMPORTANT:

The Filter / Regulator will not operate properly if the defector is not installed
properly. The deflector must be installed between the filter stem and filter
body.

8. Install filter element and firmly tighten baffle onto the filter stem.
9. Install diaphragm assembly into body assembly. Assemble bonnet assembly

onto body and tighten per Figure 1.

10. Install bowl into body and tighten, hand tight, plus 1/4 turn.

Lightly grease with provided lubricant.
Inspect for nicks, scratches, and surface imperfections.
If present, reduced service life is probable and future replacement
should be planned.
Clean with lint-free cloth.

SB1 Filter / Regulator

with Plastic Knob

SB1 Filter / Regulator with

Stainless Bonnet

Service Kits Available

Description

SB1

SB2

Automatic Drain

—

SRP-96-027

Auto Pulse Drain

RKP05482-SS

—

Bonnet Assembly - Knob

SRP-96-017

SRP-96-018

Bonnet Assembly -
Stainless Steel

CKR354YSS

CKR11YSS

Element (5 Micron)

SRP-96-001

SRP-96-003

Element (20 Micron)

SRP-96-002

—

Element (40 Micron)

—

SRP-96-004

Gauge

SRP-96-021

SRP-96-022

Manual Drain

SAP05481

Panel Mount Nut

SRP-96-019

SRP-96-020

Spring, 0-25 PSIG

SPR-375-2-SS

—

Spring, 0-60 PSIG

SPR-376-1-SS

SPR-388-1-SS

Spring, 0-125 PSIG

SPR-377-1-SS

SPR-389-1-SS

Spring, 0-250 PSIG

—

SPR-390-1-SS

Regulator Repair Kit
(Relieving)

SRP-96-015

SRP-96-011

Regulator Repair Kit
(Non-Relieving)

SRP-96-016

SRP-96-012

Sight Gauge Kit

—

SRP-96-026

Spring Cage (Bonnet)

Torque: 5.0 to 6.2 Nm

(45 to 55 in. lb.)

Adjusting Screw Assembly

Spring Cage (Bonnet) Torque:

13.6 to 15.8 Nm (120 to 140 in. lb.)

T-Handle Assembly

Adjusting Screw Assembly

Control Spring

Auto Drain

(Finger Tight)

Auto Pulse Drain

(Finger Tight)

O-Rings

O-Rings
Seal Cap

Finger Tight

Cap Seal

Screw

Torque .56 to 1.13 Nm

(5 to 10 in. lb.)

Screw

Torque .56 to 1.13 Nm

(5 to 10 in. lb.)

Sight Glass

Knob

Control Spring

Inner Valve (Poppet) Assembly

Diaphragm Assembly (Includes

Diaphragm Plate & Diaphragm Button

Diaphragm Assembly (Includes

Diaphragm Plate & Diaphragm Button

Inner Valve (Poppet) Assembly

Bowl Seal

Spring, Return

Body

Baffle / Filter Holder

(Hand Tighten)

Element

Deflector

O-Ring

Manual Drain

(Finger Tighten)

Bowl