APTech SL 5800 - Manual (Page 2)

Operation Manual Pressure Regulators
Manual 15000006 Rev 6 Page 2 of 4
C. Installation
1. Verify the pressure rating is acceptable for the intended application.
2. If the regulator is equipped with either a supply or delivery pressure gauge, verify that the
pressure gauge range is suitable for the application. For high flow regulators used at high
supply pressures, be sure to consider the supply pressure effect when verifying gauge range
suitability. Refer to AP Tech Product Note PN 425 regarding supply pressure effect.
3. Inspect the regulator to determine the flow path through the regulator and how the regulator
will need to be installed in the system.
a. The high pressure (inlet/supply) ports are labeled with an “HP” marked into the body near
the ports. Arrows are sometimes used next to the HP to point toward a high pressure port.
b. The low pressure (outlet/delivery) ports are labeled with an “LP” marked into the body
near the ports. Arrows are sometimes used next to the LP to point toward a low pressure
port.
c. Dual stage regulators such as the AP1700 and AP2700 may have a monitor (1st stage
outlet) port. The monitor port is labeled with an “MP” marked into the body near the port.
Arrows are sometimes used next to the MP to point toward a monitor port.
d. Always connect the gas source to the high pressure port. Never connect the gas source to
the low pressure port or monitor port as the regulator will be damaged and leakage can
result.
4. Install the regulator using the appropriate method described below. A large variety of porting
options and connections are available.
a. For tube stub connections, weld connectors or other components to the tube stubs per
standard industry practice (reference SEMI standard F78).
b. For metal face seal connectors, assemble connections per standard practice described by
fitting supplier (typically 1/8 turn past fingertight).
c. For NPT and BSPT connections, apply PTFE (e.g. Teflon) tape to connector threads and
install connector in regulator body wrench tight.
d. For compression tube fittings, insert the tubing until it bottoms out in the fitting.
Assemble nut fingertight. Then tighten the nut 1-1/4 turns past fingertight for 1/4 inch to
1 inch tube connections. For remaking connections, only tighten the nut slightly past
fingertight until a rise in torque is detected—this is typically 1/10 turn.
e. For pneumatically actuated regulators (AP/AK/AZ10PA, AP/AK/AZ12PA,
AP/AK/AZ14PAT, AP/AK/AZ15PA, AP90PA, and AP91PA), a separate line will need
to be plumbed to provide the pneumatic actuator control pressure. The actuation port is
1/8th inch NPT and is located on the top center of the actuator. The maximum allowable
control pressure is printed on a label surrounding the actuation port. A pilot regulator
with an outlet pressure vent is recommended to control the actuation pressure.
f. Most regulators have threaded holes on the bottom for mounting. Refer to the applicable
data sheet for details. However, for panel mount options, please refer to APTech
Operation Manual Panel Mounting Gas Pressure Regulators for mounting procedures.
5. After installation, perform a leak test. A helium leak test, a pressure decay leak test, or a
bubble leak test may be used depending on the application. A helium leak test is
recommended for all face seal connections and welds per standard industry practice
(reference SEMI standard F1).