WellMark Top Gun 2001PR Series Installation, Operation & Maintenance Instructions

Note: This document is to be used in conjunction
with WellMark Catalog Document, Section No.
5.2, "Series 2001PR Top Gun High Pressure
Regulator", pages 3 through 5.
WARNING!
Over-pressure of this regulator or installation of the
regulator in applications which may see pressure
levels beyond those for which the regulator is
designed may result in leakage and/or catastrophic
failure. This failure could result in leaking gas,
damage to surrounding equipment, personal injury
or death. To prevent such damage/injury the
regulator should be installed in a safe location and
should be chosen based upon the user's specific
application.
It is highly recommended that suitable pressure-
relieving devices, as recommended by appropriate
codes or standards, be installed in your system to
assure that maximum rated pressures are not
exceeded.
Installation
The Series 2001PR Top Gun Regulator should be chosen based
upon the maximum inlet pressures, pressure drops and outlet
pressures as described in Table 1 and 2. Flow capacities are listed in
Table 3. The operating temperature range is -20°F to 150°F. When
choosing and installing a regulator one must ensure that the
conditions do not exceed these parameters. Furthermore, large
differentials in pressure across the regulator may result in the
formation of ice in the orifice area. The resulting decrease in orifice
area may affect the regulators ability to flow in sufficient volume for
downstream demand. Therefore, large pressure drop applications
may require the use of more than one regulator.
The Company, L.L.C.
© The WellMark Company • Litho USA • All registered trademarks are the property of their respective owners. • IOM-2001PR 080604
Installation, Operation & Maintenance Instructions
Oklahoma City, Oklahoma Tel: (405) 672-6660
for Series 2001PR "Top Gun" Regulator
Make sure that line pressure has been eliminated prior to the
installation of any regulator. Prior to installation the line should be
inspected to ensure that there is no debris that might damage the
regulator. Install regulator with properly sized threaded connections
and utilizing thread sealant.
The regulator should be installed with the flow arrow on the side of
the body in the correct orientation to flow - i.e. higher pressure
upstream, lower regulated pressure downstream.
most regulators, the Series 2001PR regulator has an outlet
pressure rating that is less than the inlet pressure rating. Over-
pressure protection must be provided to avoid over-pressure
condition if the actual inlet pressure can exceed the outlet
pressure rating. Refer to Table 1 and 2 for maximum inlet
pressures, pressure drops and outlet pressure ranges.
The regulator may be installed in any orientation as long as the flow is
in proper agreement with the flow arrow on the side of the body.
However, the regulator should be positioned such that the screened
Breather (24) will not collect debris or moisture.
Vent Line Option
The Series 2001PR Top Gun Regulator includes a vent or Breather
(24) in the Spring Housing (3). If there is concern about build-up of
gas in a confined location, the Breather may be removed to allow
installation of a remote vent line. With the Breather removed, a vent
line may be installed into the1/4" NPT port. This vent line should be
as large a diameter as possible and should utilize minimal bends and
elbows. Furthermore, the vent line opening should be protected from
weather or debris and should be checked regularly for blockage.
Table 1: Maximum Pressures and Pressure Drops
Port Diameter
Max. Allowable Inlet Pressure, psig
Max. Allowable Pressure Drop, psid
The sum of the outlet pressure setting and the maximum allowable pressure drop
1
determines the maximum allowable inlet pressure for a given installation. For example,
with a 3/8" seat ring orifice (maximum pressure drop of 500 psi) and a 275 psig outlet
pressure setting, the maximum inlet pressure is 775 psig (500 psi + 275 psi + 775 psi).
Table 2: Outlet Pressure Ranges
Outlet Pressure Range psig 27-50
Max. Outlet Pressure over
1
Pressure setting , psig
Max. Emergency Outlet
(Casing) Pressure, psig
Internal parts of the regulator may be damaged if the outlet pressure exceeds the pressure
1
setting beyond the amounts shown.
This applies to outlet pressure settings below 350 psig only. For pressure settings above
2
350 psig, outlet pressure is limited to 550 psig, the maximum emergency outlet (casing)
pressure.
Fax: (405) 672-6661
2001PR
Series
As is true with
1/8" 1/4" 3/8"
1
1500 1500 1000
1500 1000 500
46-95 90-150 150-200 200-275 275-500
200
550
wellmarkco.com
1/2"
750
250
2
200
1