Type 99

 

 

Table 4. Working Monitor Performance

 

 

 

 

 

 

 

 

 

 

 

 

 

MONITORING PILOT INFORMATION

 

 

 

 

MINIMUM PRESSURE

 

 

 

 

 

Pilot Spring

 

 

AT WHICH WORKING

Construction

Spring Range

 

 

 

MONITOR REGULATOR

Part Number

Wire Diameter,

Free Length,

 

 

 

 

Inches (cm)

Inches (cm)

CAN BE SET

 

 

 

 

 

 

 

5 to 15-inches w.c.

(12 to 37 mbar)

1B653927022

0.105

(0,27)

3-3/4

(9,52)

3-inches w.c. (7 mbar)

Type 161AYW with 1/8-inch

over normal

11 to 28-inches w.c.

(27 to 70 mbar)

1B537027052

0.114

(0,29)

4-5/16

(11,0)

(3,18 mm) port diameter and

distribution pressure

 

 

 

 

 

 

 

 

150 psig (10,3 bar) maximum

1 to 2.5 psig

(0,069 to 0,17 bar)

1B537127022

0.156

(0,40)

4-1/8

(10,5)

0.5 psi (0,03 bar)

allowable inlet pressure

2.25 to 4.5 psig

(0,16 to 0,31 bar)

1B537227022

0.187

(0,47)

3-15/16

(10,0)

over normal

 

4.5 to 7 psig

(0,31 to 0,48 bar)

1B537327052

0.218

(0,55)

4-1/8

(10,5)

distribution pressure

Type 627-109 with 1/8-inch

5 to 15 psig

(0,34 to 1,03 bar)

1D892327022

0.168

(0,43)

2-15/16

(7,46)

3.0 psi (0,21 bar)

(3,18 mm) port diameter and

10 to 25 psig

(0,69 to 1,72 bar)

1D751527022

0.187

(0,47)

2-13/16

(7,14)

over normal

150 psig (10,3 bar) maximum

20 to 35 psig

(1,38 to 2,41 bar)

1D665927022

0.218

(0,55)

2-15/32

(6,27)

distribution pressure

allowable inlet pressure for cast

25 to 60 psig

(1,72 to 4,14 bar)

1D755527142

0.500

(1,27)

9-1/4

(23,5)

 

iron body or 750 psig (51,7 bar)

40 to 80 psig

(2,76 to 5,52 bar)

1E543627142

0.283

(0,72)

2-15/16

(7,46)

5.0 psi (0,34 bar)

maximum allowable inlet pressure

80 to 150 psig

(5,52 to 10,3 bar)

1P901327142(1)

0.240

(0,61)

2-5/8

(6,67)

over normal

for malleable iron body

130 to 200 psig

(9,00 to 13,8 bar)

1P901327142(2)

0.240

(0,61)

2-5/8

(6,67)

distribution pressure

1. With large diaphragm plate.

2. With small diaphragm plate.

location. The line or stack opening must be protected against condensation, freezing, and clogging.

Clean out all pipelines before installation and check to be sure the regulator has not been damaged or collected foreign material during shipping.

Apply pipe compound to the male pipe threads only with a screwed body, or use suitable line gaskets and good bolting practices with a flanged body. This regulator may be installed in any position desired as long as the flow through the body is in the direction indicated by the arrow on the body. Install a three-valve bypass around the regulator if continuous operation is necessary during maintenance or inspection.

Although the standard orientation of the actuator and pilot to the main valve body is as shown in Figure 1, this orientation may be changed as far as the inlet tubing (key 24, Figure 9 or 11) will permit by loosening the union nut (key 14, Figure 9), rotating the actuator lower casing (key 29, Figure 9) as desired, and tightening the union nut. To keep the pilot spring case from being plugged or the spring case from collecting moisture, corrosive chemicals, or other foreign material, the vent must be pointed down, oriented to the lowest possible point on the spring case, or otherwise protected. Vent orientation may be changed by rotating the spring case with respect to the pilot body, or on the extra high pressure pilot with optional tapped spring case by rotating the vent with respect to the spring case.

To remotely vent a low pressure pilot, install the vent line in place of the pressed-in vent assembly (key 60, Figure 9). Install obstruction-free tubing or piping

into the 1/4-inch (6,35 mm) vent tapping. Provide protection on a remote vent by installing a screened vent cap into the remote end of the vent pipe.

To remotely vent a high pressure pilot, or an extra high pressure pilot with optional tapped spring case, remove the screwed-in vent assembly (key 72, Figure 9) from the high pressure pilot spring case or the pressed-in vent assembly from the extra high pressure pilot spring case and install obstruction-free tubing or piping into the 1/4-inch (6,35 mm) vent tapping. Provide protection on a remote vent by installing a screened vent cap into the remote end of the vent pipe.

An upstream pilot supply line is not required because of the integral pilot supply tubing (key 24, Figure 9 or 11). However, as long as the 1/4-inch NPT tapping in the main valve body is plugged, this tubing may be disconnected from both the main valve and filter assembly (key 75, Figure 9) in order to install a pilot supply line from a desired remote location into the filter.

If the maximum pilot inlet pressure will be exceeded by main valve pressure, install a separate reducing regulator (if not already provided) in the pilot supply line.

A Type 99 regulator has two 1/2-inch threaded NPT control line pressure taps on opposite sides of the lower casing (key 29, Figure 9). The regulator normally comes from the factory with the tap closest to the regulator outlet left unplugged for the downstream control line as shown in Figure 1, and with opposite tap plugged.

Attach the control line from the unplugged tap 2 to

3 feet (0,61 to 0,91 meter) downstream of the regulator in a straight run of pipe. If impossible to comply with

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