Type FL
8
6.
Remove orifice (key 19) and O-ring (key 17). Inspect
the parts for damage or wear, and replace if necessary.
Lightly lubricate the O-ring and place in the body (key 16).
Install the orifice.
7. Set the disk holder (key 22) in the body (key 16).
8. Lightly lubricate the rims of the diaphragm plate (key 14).
Position the diaphragm convolution facing down, make
sure that the diaphragm is not deformed and is properly
installed. Take the diaphragm (key 14) and place it in the
body (key 16) on top of the disk holder (key 22).
9. Set the upper diaphragm plate (key 13) on top of the
diaphragm (key 14).
10. Place washer (key 11) and stem nut (key 26) on the stem
(key 23) and tighten using a wrench to hold the stem.
11. Place the upper spring seat (key 9) on the upper
diaphragm nut (key 26) and mount the spring case
(key 8) on top of the body (key 24) and the diaphragm
(key 14).
12. Place washers (key 11) and uniformly tighten the machine
screws (key 10) to hold the body (key 24) and spring case
(key 8) together.
13. Install spring (key 7) and upper spring seat (key 6) on
top of the lower spring seat (key 9) inside the spring case
(key 8). Install Cap (key 3).
14. Screw in adjusting screw (key 1) at desired spring
compression and use the lock nut (key 2) to lock the
adjusting screws position. Refer to Pilot Adjustment
section (page 5) to adjust pilot settings.
Parts Ordering
Each relief valve or backpressure regulator is assigned
a serial number, which can be found on the nameplate.
Refer to the number when contacting your local Sales
Office for technical information or when ordering parts.
When ordering replacement parts, reference the key number
of each needed part as found in the following parts list.
Separate kit containing all recommended spare parts
is available.
Parts List
Type FL Main Valve (Figure 5)
Key Description
Part Number
Start-Up Repair Kit
(includes keys 4, 18, 20, 46, and 47.
Not all parts are used for all sizes.)
See Table 4
Parts kit (includes keys 2, 3, 4, 10,
18, 20, 26, 28, 35, 37B, and 47.)
Not all parts are used for all sizes.)
See Table 5
Travel Indicator Kit (includes keys 33, 34, 35,
36, 37B, 38, 39, and 40.)
See Table 6
Key Description
Part Number
1
Inlet Flange
CL300 RF
NPS 1 / DN 25
M0268280X12
NPS 2 / DN 50
M0268410X12
NPS 3 / DN 80
M0268520X12
NPS 4 / DN 100
M0268580X12
NPS 6 / DN 150
M0298170X12
NPS 8 / DN 200
M0298330X12
NPS 10 / DN 250
ERCA01166A0
CL600 RF
NPS 1 / DN 25
M0268260X12
NPS 2 / DN 50
M0268430X12
NPS 3 / DN 80
M0268540X12
NPS 4 / DN 100
M0268600X12
NPS 6 / DN 150
M0298160X12
NPS 8 / DN 200
M0296890X12
NPS 10 / DN 250
ERCA01168A0
2*
Anti-Friction Ring, Polytetrafluoroethylene (PTFE)
NPS 1 / DN 25 (6 required)
M0194530X12
NPS 2 / DN 50 (6 required)
M0194690X12
NPS 3 / DN 80 (6 required)
M0192170X12
NPS 4 / DN 100 (6 required)
M0194830X12
NPS 6 / DN 150 (6 required)
M0207640X12
NPS 8 / DN 200 (6 required)
M0296300X12
NPS 10 / DN 250 (6 required)
ERCA01177A0
3*
O-ring, Fluorocarbon (FKM)
NPS 1 / DN 25 (3 required)
M6020019X12
NPS 2 / DN 50 (3 required)
M6020029X12
NPS 3 / DN 80 (3 required)
M6020036X12
NPS 4 / DN 100 (3 required)
M6020044X12
NPS 6 / DN 150 (3 required)
M6020050X12
NPS 8 / DN 200 (3 required)
M6020053X12
NPS 10 / DN 250 (3 required)
ERCA04451A0
4*
Body O-ring
Nitrile (NBR)
NPS 1 / DN 25 (2 required)
M6010108X12
NPS 2 / DN 50 (2 required)
M6010119X12
NPS 3 / DN 80 (2 required)
M6010195X12
NPS 4 / DN 100 (2 required)
M6010157X12
NPS 6 / DN 150
M6010084X12
NPS 8 / DN 200
M6010084X12
Fluorocarbon (FKM)
NPS 1 / DN 25 (2 required)
M6020084X12
NPS 2 / DN 50 (2 required)
M6020101X12
NPS 3 / DN 80 (2 required)
M6020128X12
NPS 4 / DN 100 (2 required)
M6020090X12
NPS 6 / DN 150
M6020072X12
NPS 8 / DN 200
M6020072X12
5
Socket Head Screw
NPS 1 / DN 25 (16 required)
M5011044X12
NPS 2 / DN 50 (16 required)
M5011062X12
NPS 3 / DN 80 (16 required)
M5011086X12
NPS 4 / DN 100 (16 required)
M5011094X12
NPS 6 / DN 150 (16 required)
M5011115X12
NPS 8 / DN 200 (24 required)
M5011115X12
NPS 10 / DN 250 (24 required)
ERCA04502A0
6
Spring
NPS 1 / DN 25
M0194590X12
NPS 2 / DN 50
M0191440X12
NPS 3 / DN 80
M0192240X12
NPS 4 / DN 100
M0194880X12
NPS 6 / DN 150
M0249030X12
NPS 8 / DN 200
M0296460X12
NPS 10 / DN 250
ERCA01214A0
7
Tube Fitting
- - - - - - - - - - -
8
Inlet Plate
NPS 1 / DN 25
M0194440X12
NPS 2 / DN 50
M0194620X12
NPS 3 / DN 80
M0192080X12
NPS 4 / DN 100
M0194740X12
NPS 6 / DN 150
M0302910X12
NPS 8 / DN 200
M0302950X12
NPS 10 / DN 250
ERCA01164A0
9
Flange Bolt
NPS 1 / DN 25 (16 required)
M5007026X12
NPS 2 / DN 50 (16 required)
M5007045X12
NPS 3 / DN 80 (16 required)
M5007077X12
NPS 4 / DN 100 (16 required)
M5007100X12
NPS 6 / DN 150 (24 required)
M5007141X12
NPS 8 / DN 200 (30 required)
M5007193X12
NPS 10 / DN 250 (36 required)
ERCA04503A0
*Recommended Spare Part
