HomeMy WebLinkAboutREGULATOR PAPERWORKTypeFirst-Stage
Introduction
The Type R122H is an Underwriters Laboratories listed
regulator designed for Two -Stage LP -Gas systems.
The unit is designed to reduce the tank pressure to an
outlet pressure of 10 psig. The compact size makes it
ideal for small domestic applications and underground
-tanks, The outlet pressure setting is nonadjustable
and is factory set at nominal 10 psig. Screened drip -
lip vents are oriented over the outlet as standard.
Features
20 Year Recommended Replacement Life — The
R122H is designed using rugged'timeproven
design, concepts and constructed of corrosion
resistant materials, both'intemally and externally.
With proper installation andperiodic inspection and
maintenance the R122H regulator will meets 20,
Year Recommended Replacement Life.
• Dual Gauge Taps— Built-in 118 inch NPT gauge
taps oriftced to a number 54 drill size on both
the inlet and outlet side of the regulator allow for
easy testing.
• Durability —Afluorocarbon valve disc is utilized
to improve lockup performance in systems with
contaminated gas.
Improved Regulation —A large fabric -reinforced
diaphragm and stabilizer clip deliver accurate and
stable regulation. ,
• Easy Installation - The units compact size and'
easily accessible' inlet and outlet wrench flats make
installation easy even in the tightest installations.
Builetin LP-7: R122H
SCANNED
BY
Lucie County
Figure f. Type R122H First-StagaRogWator
Superior Overpressure Protection- The
combination of a high capacity relief valve and large
vent provide overpressure protection that exceeds
UL standards. When used in conjunction with a
R622 or R65Z the two -stage system will limit the
downstream pressure from the second -stage to 2
psig even in a double failure situation.
• Corrosion -Resistant— Added corrosion resistance
from an internal and external coating pros ss for all
castings prior to painting, stainless steel relief valve
spring and retainer and a corrosion resistant relief
valve seat.
Positive [training Spring Case— When installed
properly with the spring case vent pointed dawn,
the design allows moisture formed in the spring
case to drain out limiting the problems with
corrosion and freezing water in the spring case.
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EMERSOM
Process Management
Bulletin LP-7; Rl- 22H
Table T. Ordering Informatioat
TYPE NUMBER.
CAPACITY STUIHR
PROPANE!). _
CONNECTIONS
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tiOMIHA�OUTLET SEI'TiNG.
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1,10a,W0
1144fiCh X t 24" NPT
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Figure 2, Type i'122H Dimenslons 'NCB
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LP1ias.Equipmant
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Regulator T"Ittretogies, Inc.
USA. -Headquarters
MdOr ney, Texas 75069-1072 USA
Telephone: I (6W) 658 5853
Te(ephom:•1 (972)540.3574.
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Inlet, and-Outiet Prei5sure Gauge Taps
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Type R622,direct-operated; pringrloadqd.Tgulators applications. These regulators can be used with
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provide economical pressure reducing cq"t in natural; manufactured; or propane gases and have the
a.Variety.ofresidenliial, commercial, and industrial same Inlefand outlet pressure capabilities
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EMERSON.
Process Management; - -
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EMERSON.
Process Management; - -
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Bulletin 71.1R622
Body Size 'ar)d'End Connection Style(')
1/2 NPT inlet and outlet
Maximum Allowable Inlet Pressuretli
Operating* 125 psig (8,6 bar)
Emergency: 125-psig (8,6 bar)
Except. 1:8 to 2.2-inches w.c. (4,to 5 mbar) spring
range'which has operating and emergency
pressures of 60 psig (4,1 bar)
Maximum Allowable Outlet (Casing) Pressure(')
Operating to Avoid Internal Part Damage:
3 psid (0,21 bar d) above outlet pressure setting
Emergency., 20 psi (1;4 bar)
Outlet Pressure Ranges
See Table 1
OrificeSize
1/8-inch (3,2 mm) orifice
Flow Coefficients
Wide -Open CD for Relief Sizing: 12.5
Wide -Open Cr for Relief Sizing: 0.36
Ct:.35
IEC Sizing; Coefficients
XT: 0.78
Ft)0.82
FL: 0.89
Flow Capacities
See Table 2
In addition, Type R622 regulators have interhai relief
across the diaphragm to help minimize overpressure.
Any outlet pressure above the start -to -discharge point
of the nonadjustable relief valve spring moves the
diaphragm,off of the relief valve seat, allowing'excess
pressure to bleed out through the screened spring
case vent
Table 1. Outlet Pressure Ranges
Pressure Registration
Internal -
Relief Performance
See Flgyre 4
Internal Relief Performance
Start -to -Discharge is'8 to 22-inches w;c_
(20 to 55 mbar) for setpoints from
1.8 to 20-inches w.c: (4 to 50 mbar),
Start -to -Discharge is 140 to 200% over setpoint
from 20-inches w:c. to 2.2 psig (50 to 152 mbar)
Spring Case Vent Connections
314 NPT'y4th removable screen
Temperature Capabilities(')
-20 to'160'F (-29° to 71 °C)
Approximate Weight
2.35 pounds (1 kg)
Construction Materials
Body, Spring Case, Diaphragm Plate, and
Orifice: Aluminum
Diaphragin,'Disk, and O-ring: Nitrite-(NBR)
Adjusting Screw and Pushpost: Deirino
Closing`Cap: ASA Thermoplastic (UV -Ray Resistant)
Control Spring: Zinc -plated steel
Machine Screw, Spring Seat,
and Lever: Zinc -plated steel
Valve Stem: Zinc
Relief Valve Spring, Relief Spring Retainer,
Lever Pin, and Vent Screen: Stainless steel
W
Specifications;
The Spect icalroris section fists specifications for Type R622
Pressure Reducing Regulators. As it originally comes.
from the factory, specifications for a given regulator
are stamped on the spring case nameplate.
OUTLET PRESSURE RANGE
CONTROL SPRING PART
NUMBER
CONTROLSPRING
COLOR CODE
SPRING WIRE DIAMETER.
INCHES(MM)
SPRING FREE LENGTH,
INCHES(1nm)
1.8 to 22-h+tlles we (4 to 5 mbar)
T14463TOO12
Purpla
0.051 (1,30)
3.110 (86A)
5 to 74nohs w.c..(12 to 17 mbar)
T14MTU012
oninge
0.062(1,58)
3.40(86,4)
6.5 to 94ndies w.c. (16 to 22 mbar)
T14399TOO12
YeIWN
0.U67 (1,70)
3.61 (91.7)
9 to 134IOles w.s. (22 to 32 mbar)
Ti"GOT0012
sliver
O072 (1,83)
4:10 (104)
13to 204nc ieswx.. (32 to 50 mbar)
T14401TOO12
Gray
B= (2,03)
3.60 (91,4)
16 to 354Khes w.c. (40 to 87 mbar)
T14402TOO12.
Pink
0.093 (2.36)
3.S2 (89A)
1.to 22 psig (69 to 152 mbar)
T14403T0012
Light Blue
0.105 (267)
3.66 (93,0).
2