Norgren R82 Series - Manual

© Norgren 1996
Port
2.....1/4" Relief Type
E.....Relieving with 60 psig (4.1 bar) integral relief valve Gauge
N ....No gauge
R82 APPLICATION
The R82 cylinder gas pressure regulator is used in beer dis-
pensing systems to control carbon dioxide pressure to the
beer keg. The R82 regulator with integral, preset, nonad-
justable pressure relief valve meets the requirements of
ANSI-ASME F2.1-1975, Food, Drug and Beverage Equipment,
Proposed Section 9.7, Draught Beer Dispensing Equipment
and Related Components, (Seventh Draft dated October 17,
1980). The integral relief valve will, in the event of regulator
malfunction, limit the outlet pressure to help protect down-
stream equipment from an excessive overpressure condition.
R82 RELIEF TYPE
R82 regulators are relieving type regulators, and will there-
fore vent gas from the regulator body secondary chamber
when the regulator pressure adjusting screw is turned coun-
terclockwise. Pressure downstream of the regulator will not
be reduced when the adjusting screw is turned counter-
clockwise because back-flow check valves must always be
installed in each regulator outlet line.
TECHNICAL DATA
Fluids: Carbon dioxide
Maximum primary (inlet) pressure: 3000 psig (206.9 bar)
Operating temperature: 0° to +140°F (-18° to +60°C)
Maximum outlet pressure adjustment limit: Factory set at 40
to 45 psig (2.8 to 3.1 bar)
Integral relief valve secondary (outlet), nonadjustable relief
cracking pressure setting: 60 psig ± 4 psig (4.1 ± 0.28 bar)
Materials:
Body: Brass
Bonnet: Zinc
Cartridge valve: Teflon, brass, stainless steel
Seals: Nitrile
Diaphragm: Acetal, nitrile
Relief valve: Brass, acetal, nitrile, aluminum
REPLACEMENT ITEMS
Diaphragm, relieving (7) ...............................................570-51
Cartridge valve (9, 10) ................................................5086-55
Relief valve (13, 14)*..................................................5779-56
*Relief valve is marked 60 PSIG RELIEF VALVE R82 and has
a brass body with a natural (silver colored) aluminum end
cap.
INSTALLATION – Also refer to ANSI-ASME F2.1-1975, Food,
Drug and Beverage Equipment, Proposed Section 9.7,
Draught Beer Dispensing Equipment and Related
Components.
This regulator has two primary (inlet) ports marked PRI, and
two secondary (outlet) ports marked SEC (secondary).
1. Connect the high pressure supply to either of the PRI
ports. The other primary port can be plugged, used as a
manifold port to another regulator, or used for a primary
pressure gauge. Use a U.L. listed gauge.
2. Connect outlet lines which lead to the downstream system
to either of the SEC ports. The other secondary port can be
plugged, used as an additional secondary outlet, or used
for a secondary pressure gauge. Use a U.L. listed gauge.
WARNING
Never connect the high pressure supply to the regulator ports
marked SEC. Never connect the outlet lines to the regulator
ports marked PRI. Improper connections will expose the
downstream system to excessive pressure, resulting in equip-
ment damage and/or personal injury. Before turning on gas
pressure, turn regulator adjusting screw (2) fully counter-
clockwise.
ADJUSTMENT
1. Turn regulator adjusting screw (2) fully counterclockwise.
2. Turn on gas pressure.
3. Turn adjustment clockwise to increase secondary (outlet)
pressure setting. Turn adjustment counterclockwise to
decrease pressure setting.
4. Always approach the desired pressure from a lower pres-
sure. When reducing from a higher to a lower setting, first
reduce to some pressure less than that desired, then bring
up to the desired pressure.
5. Tighten lock nut (3) to secure pressure setting.
DISASSEMBLY
1. Shut off inlet pressure. Reduce pressure in inlet and outlet
lines to zero.
2. Turn regulator adjusting screw (2) fully counterclockwise.
3. Unit can be disassembled without removal from air line.
4. Disassemble in general accordance with the item numbers
on exploded view. Use 5/8" socket to remove cartridge
valve (9).
CLEANING
1. Clean parts with warm water and soap.
2. Rinse and dry parts. Blow out internal passages in body
with clean, dry compressed air.
3. Inspect parts. Replace those found to be damaged.
NOTE
Cartridge valve (9) is factory sealed and is not repairable.
Relief valve (13) is not adjustable or repairable. Replace these
parts if not sealing properly. Use only the specified Norgren
parts for replacement. Do not use damaged or inoperative
parts or assemblies. Maintain strict cleanliness when
reassembling regulator.
ASSEMBLY
1. Lubricate threads and tip of adjusting screw (2), with a
light, even coat of Lubriplate Aero.
2. Lubricate bonnet threads (1), with a light, even coat of
Led-Plate 250.
3. Lubricate o-rings (10, 14) with a light coat of Dow Corning
DC 44 silicone grease.
4. Assemble the unit as shown on the exploded view.
5. Torque Table
Item Torque
9 (Cartridge valve) 45 to 65 in-lbs (5 to 7 Nm)
1 (Bonnet) 25 to 30 ft-lbs (34 to 40 Nm)
13 (Relief valve) 40 to 80 in-lbs (4.5 to 9 Nm)
WARNING
For safety in system applications using Model R82 Regulators,
the following procedures must be followed.
1.Pressure relief valves of sufficient capacity must always be
used in the secondary (outlet) lines downstream of each
pressure regulator, whether as an integral part of the regula-
tor, as is the case with Norgren Model R82 Regulators, or
separately installed elsewhere in the outlet lines. Do not
remove or attempt to adjust, plug, block or otherwise defeat
the purpose of the relief valve. The integral pressure relief
valve used on the R82 regulator is preset and marked
60 PSIG. Replace only with the same 60 psig relief valve,
part number 5779-56. See REPLACEMENT ITEMS for
description of relief valve color coding. Failure to provide a
pressure relief valve of sufficient capacity to hold outlet
pressure below the lowest working pressure rating of any
piece of equipment installed in the outlet lines can result in
equipment damage and/or personal injury.
2. A back flow check valve must always be installed at the reg-
ulator outlet and/or other points in the system as specified
for draught beer dispensing equipment to prevent reverse
flow through the regulator and possible introduction of liq-
uids and other contaminants into the regulator.
4. Regulators must not be used where temperature or pres-
sure may exceed those specified in the TECHNICAL DATA
paragraph.
4. These regulators are not intended for use in life support
systems.
5. The accuracy of the indication of pressure gauges can
change, both during shipment (despite care in packaging)
and during the service life. If a pressure gauge is to be used
in conjunction with these products and if inaccurate indica-
tions may be hazardous to personnel or property, the gauge
should be calibrated before initial installation and at regular
intervals during use. For gauge standards refer to ANSI
B40.1.
2
3
1
4
5
6
7
11
12
9
10
14
13
Thread
A ....PTF Spring (Outlet pressure adjustment range) *
E...2 to 45 psig (0.14 to 3.1 bar)
* Outlet pressure can be adjusted to pressures in excess of, and less than, those specified. Do not use these units to control pressures outside of the specified ranges.
5400 South Delaware Street, Littleton, CO 80120-1663 Phone 303-794-2611 Fax 303-795-9487
Installation & Maintenance
Instructions
U.L. Listed Cylinder Gas Regulator
for Controlling Pressure to the Beer Keg
in Beer Dispensing Systems
R82 -
★00 - ★★★★
NIP-254 (11/96) Supersedes 5/96