Mooney 22/22H Pilots Instruction Manual | 9
Copyright 2022 Baker Hughes Company. All rights reserved.
Personal injury, equipment damage, leakage or explosion
of accumulated gas or bursting of pressure containing
parts may result if this valve/ regulator is over pressured
or is installed where service conditions could exceed
the limits given in the specification of this manual or on
the nameplate, or where conditions exceed any ratings
of the adjacent piping or piping connections. Verify
the limitations of valve, pilot and pipeline to ensure no
device is over pressured. To avoid such injury or damage,
provide pressure relieving or pressure limiting devices
(as required by the U.S. code of Federal Regulations, by
the National Fire Codes of the National Fire Protection
Association, or by other applicable codes) to prevent
service conditions from exceeding those limits.
Additionally, physical damage to the regulator, pilot, or
tubing can cause personal injury and/or property damage
due to explosion of accumulated gas. To avoid injury and
damage, install the valve in a safe location.
Gas regulators installed in confined or enclosed spaces
should be provided with adequate ventilation to prevent
the possibility of gas buildup or accumulation from
leaks and venting. Leaks or vented gas may accumulate
causing personal injury, death, or property damage.
Pilot spring cases and the regulator enclosure should
be vented to a safe area away from air intakes, or any
hazardous location. The vent lines and stacks must be
protected against condensation and plugging.
NOTE: For Series 22 pilots, lubricate the adjusting screw
with a light, nitrile rubber compatible grease such as
Lubriplate™ #105, or equivalent, at first opportunity, and
thereafter, annually and during any interim maintenance.
For Series 22 Pilots, inspect the closing cap for thread
wear by verifying the torque required to modify the set
point is less than 6 ft-lbs (8.14 Nm) and inspect for metal
particles on the adjusting screw or on the closing cap
threads. This should be completed at the first opportunity,
and thereafter, annually and during any interim
maintenance.
The Series 22 pilot with Purple, Black, or White with a
Green Stripe springs have higher tendency to wear due to
higher spring pressure. Spring range (color) is indicated
on the spring range label located on the pilot.
If it is determined that closing cap thread wear has
occurred, it is recommended that the cap and adjusting
screw be replaced with a Closing Cap Assembly. For
Closing Cap Assembly retro-fit kits, contact your local
sales representative for ordering information.
1. PERSONNEL:
Installation of the Series 22 Pilot on the
FlowMax НР Valve or any other manufacturer valve
should be made by qualified personnel familiar with high-
pressure piping and Pilot-operated Regulators.
2. PRIOR INSPECTION:
Inspect the Pilot for any damage
that might have occurred in shipping.
3. CONTROL ACTION:
Inspect to make sure the Body
Insert Assembly (Cartridge) is in the correct operational
mode. Remove the Body Insert Assembly and measure
the stem extension from the Body Insert. (Refer to the
Maintenance section of this manual – Figure 17.
Pressure Reducing Mode (PRV): the stem extends
0.32 inches (8.12 mm).
If incorrect, follow the Body Insert Assembly disassembly
and assembly instructions in the Maintenance section of
this manual.
4. ORIENTATION:
The Series 22 Pilot may be installed
in any position - the best position being one that
provides easiest access for pilot adjustment and valve
maintenance.
5. PILOT MOUNTING:
It is recommended that the Series
22 Pilot be mounted to the FlowMax НР regulator using
the two threaded mounting holes on the front of the
Adapter Housing.
NOTE: To avoid galling when stainless steel to stainless
steel connections are made, use a lubricant (such as
NEVER SEEZ™ by Bostik). For best results lightly
lubricate the female threads. Mixing the lubricant with
pipe dope is also acceptable. When tightening do not
exceed more than 1/4 turn past the point the threads
start to bind.
6. RESTRICTOR:
The Type 27 Restrictor block is mounted
to the end of the Series 22 Pilot block using two socket
head cap screws and two pressure retaining pins with o
rings. The Type 27 Restrictor block also includes a Check
valve to protect the diaphragm from damage in the case
of sudden downstream pressure buildup sometimes
associated with system start up.
7. PILOT SUPPLY LINES:
Run a 3/8-inch tubing or 1/4-inch
pipe supply line from the upstream piping or from the
valve body connection on the inlet side of the valve to the
pilot inlet port The pilot supply connection should have a
full and clean opening.
8. A FILTER
in the pilot supply line is recommended to
remove dirt and other particulates that could affect the
restrictor or variable orifice in the pilot. Refer to the Type
30 Filter IOM manual for installation instructions.
NOTE: A shutoff valve is not required in the supply
to the pilot, but if one is installed it should be a full
opening type.
9. PILOT SENSE AND LOADING LINES:
Run 3/8 inch
tubing or 1/4 inch pipe from the pilot LOADING port to the
lower actuator port. Run ½ inch tubing from the SENSE
port to the upper actuator port.
NOTE: The Actuator LOADING and SENSE lines are
typically installed at the factory on new valves.
Series 22 Pilot - Loading Type Valve Installation
