ATTENTION:
The installation of this device must be in accordance with NFPA standards No. 54 & 58, along with all federal,
state, and local codes. All personnel installing this device should be trained on the hazards associated with
combustible gases and fluids. MEC assumes no responsibly from damage or injury that may result from
servicing or the improper installation of this regulator.
WARNING:
These products contain a chemical known to the state of California to cause cancer and birth
defects or reproductive harm.
OPERATION:
The MEGR-164 is a high capacity, pounds to pounds, industrial gas regulator. It is designed to conform to UL
Standard 144 for use with LP Gas. The maximum supply pressure is 400 PSIG. The maximum output pressure
is printed on the regulator nameplate. This regulator is not intended for use in pressure applications below 3
PSIG. The operating temperature range is -40° to +200° F.
INSTALLATION:
Ensure all gas lines are free from dirt and scale. Shut off the gas. The MEGR-164 can be mounted at any angle
without affecting operation. Install the regulator as close as possible to the instrument that it is to supply. Avoid
using undersized fittings that will limit the flow through the regulator and cause downstream pressure drop.
Apply a minimum amount of pipe compound to the male threads of the inlet and outlet piping. The words "IN"
and "OUT" are cast into the body of the regulator to indicate the direction of flow. The regulator must be oriented
in the correct flow direction or internal damage to the regulator may occur. The two 1/4" NPT gauge ports
marked "GA" can also be used as optional output ports, but with decreased flow delivery. Before putting the
regulator into service for the first time, relieve compression on the range spring by turning the "T" handle counter
clockwise. After gas is applied to the regulator, check installation to ensure that there is a leak tight seal. To
operate, turn the "T" handle slowly in a clockwise direction until the required downstream pressure is obtained.
CAUTION:
The MEGR-164 is a non-relieving regulator and thus cannot exhaust excess pressure at the regulator. In
order to establish an accurate output pressure it may be necessary to cycle the downstream flow or to
set the regulator at a slight flow.
MAINTENANCE:
Because the MEGR-164 is assembled and tested at the factory to conform to UL Standard 144, any
maintenance or repair should be in accordance with this listing as well as any other applicable regulations.
Regulator parts showing wear should be replaced as necessary. The procedure below describes how to
disassemble the MEGR-164 for parts replacement and inspection. Assembly is the reverse of this procedure.
1.
Turn the adjustment screw counterclockwise to
remove spring tension.
2.
Loosen the six build screws and separate the
bonnet from the body.
3.
Remove the spring guide and spring.
4.
Unscrew the diaphragm assembly from the
pintle assembly.
5.
Loosen, by turning counterclockwise, and
remove the O-Ring and bottom plug.
6.
Remove the pintle spring and pintle
assembly.
Form #910 Rev C
