PILot tYPE
maXImum PILot
suPPLY PrEssurE
outLEt (ControL)
PrEssurE rangEs
PILot ControL sPrIng
Color Code
Wire Diameter
Free Length
bar
psig
bar
psig
mm
In.
mm
In.
61L
27.6
400
5 to 10 mbar
(1)
7 to 30 mbar
(1)
0.02 to 0.14
0.07 to 0.35
0.14 to 0.69
0.35 to 1.0
0.69 to 1.4
2 to 4 in. w.c.
(1)
3 to 12 in. w.c.
(1)
0.25 to 2
1 to 5
2 to 10
5 to 15
10 to 20
Orange
Unpainted
Red
Yellow
Blue
Brown
Green
1.83
2.03
2.77
3.61
4.37
4.75
5.26
0.072
0.080
0.109
0.142
0.172
0.187
0.207
96.0
76.2
69.9
69.9
73.2
77.0
79.5
3.78
3.00
2.75
2.75
2.88
3.03
3.13
61LD
11.0
160
61LE
27.6
400
61H
27.6
400
0.69 to 4.5
10 to 65
Green stripe
9.22
0.363
152
6.00
61HP
41.4
600
2.4 to 6.9
35 to 100
Blue
5.08
0.200
42.9
1.69
1. Type 61LD pilot only.
away from vehicular traffic and positioned
so that water, ice and other foreign materials
cannot enter the spring case through the
vent. Avoid placing the regulator beneath
eaves or downspouts, and be sure it is above
the probable snow level.
Overpressure Protection
The recommended pressure limitations are stamped on
the regulator nameplate. Some type of overpressure
protection is needed if the actual inlet pressure exceeds the
maximum operating outlet pressure rating. Overpressure
protection should also be provided if the regulator inlet
pressure is greater than the safe working pressure of the
downstream equipment.
Regulator operation below the maximum pressure limitations
does not preclude the possibility of damage from external
sources or debris in the line. The regulator should be
inspected for damage after any overpressure condition.
Table 1.
Outlet Control Pressure Ranges
Table 2.
Maximum Allowable Pressure Drop and Minimum Differential Pressures
maXImum
aLLoWaBLE
PrEssurE DroP
maIn VaLVE sPrIng
MINIMUM DIFFERENTIAL
PRESSURE FOR
FULL STROKE
DISK MATERIAL
maXImum
ORIFICE SIZE
(1)(5)
Wire Diameter
Free Length
bar
psig
mm
In.
mm
In.
bar
psig
mm
In.
1.7
25
3.76
0.148
152
6
0.05
0.75
Nitrile (NBR), Fluorocarbon (FKM)
29
1-1/8
3.4
50
3.96
0.156
181
7.13
0.10
1.5
Neoprene (CR), Fluorocarbon (FKM)
29
1-1/8
10.3
150
4.75
0.187
168
6.63
0.21
3
Nitrile (NBR), Neoprene (CR), Fluorocarbon (FKM)
29
1-1/8
12.1
(2)
175
(2)
4.75
0.187
168
6.63
0.21
3
Nitrile (NBR), Neoprene (CR), Fluorocarbon (FKM)
22
7/8
17.2
250
4.75
0.187
168
6.63
0.21
3
Nitrile (NBR), Neoprene (CR), Fluorocarbon (FKM)
22
7/8
20.7
300
7.22
0.281
152
6
0.69
10
Nylon (PA)
29
(3)
1-1/8
(3)
27.6
400
7.22
0.281
152
6
0.69
10
Nylon (PA)
22
7/8
69.0
1000
7.22
0.281
152
6
0.69
10
Nylon (PA)
13
(4)
1/2
(4)
1. Can use all orifice sizes up to maximum size listed.
2. CL125 FF flanged body only.
3. 29 mm / 1-1/8 in. is the only orifice available for 20.7 bar / 300 psig maximum inlet pressure regulator.
4. 13 mm / 1/2 in. is the only orifice available for 69.0 bar / 1000 psig maximum inlet pressure regulator.
5. O-ring seat construction is only available for 22 and 29 mm / 7/8 and 1-1/8 in. orifice sizes.
startup
The regulator is set at the factory for the setpoint specified on
the order or at the midpoint of the spring range. The allowable
spring range is stamped on the nameplate. If a pressure
setting other than specified is desired, be sure to change the
pressure setting by following the Adjustment section. With
proper installation completed and relief valves properly adjusted,
slowly open the upstream and downstream shutoff valves
(if applicable).
Adjustment
To change the outlet pressure, remove the closing cap or loosen
the locknut and turn the adjusting screw clockwise to increase
pressure or counterclockwise to decrease pressure. Monitor
the outlet pressure with a test gauge during the adjustment.
Replace the closing cap or tighten the locknut to maintain the
desired setting.
Taking Out of Service (Shutdown)
!
WarnIng
To avoid personal injury resulting from sudden
release of pressure, isolate the regulator from
all pressure before attempting disassembly.
Type 99
2
