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CVS Controls Ltd.
Product Manual: CVS Type 1301F and 1301G Regulator
Assembly
These are complete instructions assuming the
regulator was fully disassembled. If the regulator
was only partially disassembled, start at the
appropriate step. Refer to Figure 2 for key numbers.
1.
Screw the orifice (Key 18) into the regulator
then insert both halves of the yoke (Key 17).
Fasten the yoke together with the cap screws
(Key 15).
2.
The valve disk assembly (Key 19) has two
disks (one on each end). Inspect both disks
and select which one will be used. Thread the
assembly into the yoke so that the disk to be
used is against the orifice. Thread the valve
disk collar (Key 10) on to the exposed end of
the valve disk assembly.
3.
Place the bottom cap gasket (Key 8) onto the
bottom cap (Key 9), then insert the spring
(Key 3) into the bottom cap and thread the
assembly into the regulator.
4.
Place the body gasket (Key 16) on the
regulator body (Key 6).
5.
Refer to Figure 3 and place the diaphragm
plate gasket (Key 7), the two diaphragms (Key
14) and the diaphragm plate (Key 13) onto
the yoke (Key 17). Ensure the diaphragm
convolutions are toward the spring and thread
the diaphragm locknut (Key 4) onto the yoke.
6.
Place the regulator spring (Key 2) and upper
spring seat (Key 12) onto the diaphragm
plate.
7.
Position the spring case (Key 2) over the
spring and on the regulator body. Line up the
spring case vent or vents, insert the cap
screws (Key 5) and tighten them by hand.
8.
Thread the adjusting screw (Key 1) and
locknut (Key 11) into the spring case so the
spring is just slightly compressed. Securely
tighten the cap screws (Key 5) and refer to the
“Start Up” instructions for proper adjustment
procedures.
Parts Ordering
All pertinent information regarding the regulator is
stamped on the bottom cap and on the nameplate.
Please refer to this information when corresponding
with CVS Controls regarding parts or service for your
CVS Type 1301F and CVS Type 1301G Regulator.
When ordering replacement parts, please provide
the complete part number from the enclosed parts
list.
CVS Controls Ltd.
4
Process Management
and Instrumentation