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Type 99
maXImum PILot
suPPLY PrEssurE
PILot tYPE
bar
61L
27.6
61LD
11.0
61LE
27.6
61H
27.6
61HP
41.4
1. Type 61LD pilot only.
maXImum
aLLoWaBLE
Wire Diameter
PrEssurE DroP
bar
psig
mm
1.7
25
3.76
3.4
50
3.96
10.3
150
4.75
12.1
175
4.75
(2)
(2)
17.2
250
4.75
20.7
300
7.22
27.6
400
7.22
69.0
1000
7.22
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.
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.
2
Table 1. Outlet Control Pressure Ranges
outLEt (ControL)
PrEssurE rangEs
psig
bar
5 to 10 mbar
(1)
400
7 to 30 mbar
(1)
0.02 to 0.14
0.07 to 0.35
160
0.14 to 0.69
0.35 to 1.0
400
0.69 to 1.4
400
0.69 to 4.5
600
2.4 to 6.9
Table 2. Maximum Allowable Pressure Drop and Minimum Differential Pressures
maIn VaLVE sPrIng
MINIMUM DIFFERENTIAL
Free Length
In.
mm
In.
0.148
152
6
0.156
181
7.13
0.187
168
6.63
0.187
168
6.63
0.187
168
6.63
0.281
152
6
0.281
152
6
0.281
152
6
Color Code
psig
2 to 4 in. w.c.
Orange
(1)
3 to 12 in. w.c.
Unpainted
(1)
0.25 to 2
Red
1 to 5
Yellow
2 to 10
Blue
5 to 15
Brown
10 to 20
Green
10 to 65
Green stripe
35 to 100
Blue
PRESSURE FOR
FULL STROKE
bar
psig
0.05
0.75
0.10
1.5
0.21
3
Nitrile (NBR), Neoprene (CR), Fluorocarbon (FKM)
0.21
3
Nitrile (NBR), Neoprene (CR), Fluorocarbon (FKM)
0.21
3
Nitrile (NBR), Neoprene (CR), Fluorocarbon (FKM)
0.69
10
0.69
10
0.69
10
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)
To avoid personal injury resulting from sudden
release of pressure, isolate the regulator from
all pressure before attempting disassembly.
PILot ControL sPrIng
Wire Diameter
mm
In.
1.83
0.072
2.03
0.080
2.77
0.109
3.61
0.142
4.37
0.172
4.75
0.187
5.26
0.207
9.22
0.363
5.08
0.200
DISK MATERIAL
Nitrile (NBR), Fluorocarbon (FKM)
Neoprene (CR), Fluorocarbon (FKM)
Nylon (PA)
Nylon (PA)
Nylon (PA)
WarnIng
!
Free Length
mm
In.
96.0
3.78
76.2
3.00
69.9
2.75
69.9
2.75
73.2
2.88
77.0
3.03
79.5
3.13
152
6.00
42.9
1.69
maXImum
ORIFICE SIZE
(1)(5)
mm
In.
29
1-1/8
29
1-1/8
29
1-1/8
22
7/8
22
7/8
29
1-1/8
(3)
(3)
22
7/8
13
(4)
1/2
(4)
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