Nibco NIP 1AU Upright Indicator Post Maintenance Guide

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A H E A D O F T H E F L O W

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PATENT #US 9,541,218

INSTALLATION, OPERATION, and MAINTENANCE GUIDE

NIBCO Adjustable Height Upright Indicator Posts

Series NIP-1AU

NIBCO Series NIP-1AU Adjustable Height Indicator Posts are designed and manufactured to:

• Operate non-rising stem (NRS) post indicator valves (PIV) that are buried underground

• Operate multi-turn post indicator valves (PIV) with an operating range from 10 to 50 turns

• Visually indicate if the underground valve is in the OPEN or SHUT position

• Provide a means to lock the valve into a desired position (usually OPEN)

NIBCO Indicator Posts are listed by Underwriters Laboratories Inc. (UL),

Underwriters Laboratories Inc. for use in Canada (C-UL), and approved by Factory Mutual Research Corp. (FM).

It is important to follow the instructions below to assure proper installation and safe trouble-free operation. Failure to follow these instructions may result in reduced product performance and may cause loss of manufacturer’s warranty.

1. Application

1.1 NIBCO Indicator Posts are primarily used with multi-turn non-rising stem (NRS) post indicator valves (PIV) controlling water supplies to sprinkler, deluge, water spray, foam, and standpipe systems used in fire protection service.

1.2 NIBCO Indicator Posts are designed for outdoor service and are coated with electrostatically applied fusion bonded epoxy resin to resist corrosion.

1.3 NIBCO Upright Indicator Posts have a 20” adjustment range, and can be ordered to accommodate various bury depths.

1.4 NIBCO Indicator Post view targets are adjustable to accommodate valves of various sizes.

1.5 NIBCO Indicator Posts are shipped for use with “left-hand” (counter-clockwise) opening valves.

1.6 NIBCO Indicator Posts are designed to allow the attachment of a Control Valve Supervisory Switch for electronic monitoring of the OPEN valve position. Simply follow the instructions provided with the Supervisory Switch for proper installation and operation.

1.7 NIBCO Upright Indicator Posts are designed to mate and bolt directly to the Post Indicator Valve (PIV) flange; four ¾” holes on a 10½” diameter bolt circle.

1.8 Indicator Posts should be inspected on a regular basis.

UINDP-0617

© 2017, NIBCO INC.

NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227

TECH SERVICES PH: 1.888.446.4226 • FAX: 1.888.234.0557 • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: +1.574.295.3455

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2. Indicator Post Selection

2.1 NIBCO Indicator Posts are designed to work with 4” thru 16” size NIBCO Resilient Wedge Gate Valves (RWGVs) and 4” thru

12” sizes NIBCO Iron Body Bronze Mounted (IBBM) Gate Valves. See Table 1 and Fig. 1 for valve dimensional data. They will also work with any manufacturers non-rising stem Post Indicator Valve (PIV) that operates from 10 to 50 turns, and a maximum operating torque of 900 ft·lbs.

DIMENSIONAL DATA FOR NIBCO RWGV AND IBBM GATE VALVES

VALVE

SIZE

4”

6”

8”

10”

12”

14”

16”

TURNS

TO OPEN

13

15.7

17.3

21.4

25.3

44

50

NIBCO RESILIENT WEDGE GATE VALVES

(RWGV)

NIBCO IRON BODY BRONZE MOUNTED

GATE VALVES (IBBM)

A B

1/2 PIPE OD

TURNS

INCH MM INCH MM INCH MM TO OPEN

13.46

342 10.12

257 2.40

61 9

17.01

432 13.78

350

20.47

520 17.32

440

23.82

605 20.71

526

27.01

686 23.86

606

31.81

808 28.58

726

34.21

869 30.98

787

3.45

4.53

5.50

6.60

7.65

8.70

88

115

140

168

194

221

Table 1

13.5

17.5

30.3

38.3

A B

INCH MM INCH MM INCH MM

14.13

359 10.47

266

18.54

471 16.30

414

22.13

562 18.11

460

25.75

654 21.89

556

29.49

749 24.57

624

1/2 PIPE OD

2.40

3.45

4.53

5.50

6.60

61

88

115

140

168

2.2 For Upright Indicator Posts, four Figure No. options are available. See Table 2.

• NIP-1AU, Standard height

• NIP-1AU E, Extended height

• NIP-1AU EE, Double extended height

• NIP-1AU EEE, Triple extended height

See Table 2 for adjustable height ranges, and Table 3 for Bury Depths.

ADJUSTABLE

HEIGHT RANGE

NIBCO UPRIGHT INDICATOR POST

ADJUSTABLE HEIGHT RANGE

NIP-1AU NIP-1AU E NIP-1AU EE NIP-1AU EEE

H* H H H

MINIMUM

MAXIMUM

INCH MM INCH MM INCH MM INCH MM

16 406 34 864 52 1321 70 1778

36 914 54 1372 72 1829 90 2286

Table 2

*For dimension “H” see Fig. 3

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Fig. 1



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Table 3 NIBCO UPRIGHT INDICATOR POST VALVE BURY DEPTH

VALVE

SIZE

*ROUNDED

ADJUSTABLE

BURY

DEPTH

RANGE

MINIMUM

NIBCO RESILIENT WEDGE

GATE VALVES (RWGV)

NIBCO IRON BODY BRONZE MOUNTED

GATE VALVES (IBBM)

NIP-1AU NIP-1AU E NIP-1AU EE NIP-1AU EEE NIP-1AU NIP-1AU E NIP-1AU EE NIP-1AU EEE

BURY

DEPTH

BURY

DEPTH

BURY

DEPTH

BURY

DEPTH

BURY

DEPTH

BURY

DEPTH

BURY

DEPTH

BURY

DEPTH

INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM

28 724 46 1181 64 1638 82 2095 29 733 47 1190 65 1647 83 2104

4”

MAXIMUM

MINIMUM

48

33

1232

844

66

51

1689

1301

84

69

2146

1758

102

87

6”

MAXIMUM

MINIMUM

53

38

1352

961

71

56

1809

1418

89

74

2266

1875

107

92

8”

MAXIMUM

MINIMUM

58

42

1469

1072

76

60

1926

1529

94

78

2383

1986

112

96

10”

MAXIMUM

MINIMUM

62

46

1580

1180

80

64

2037

1637

98

82

2494

2094

116

100

12”

MAXIMUM

MINIMUM

66

52

1688

1326

84

70

2145

1783

102

88

2602

2240

120

106

14”

MAXIMUM 72 1834 90 2291 108 2748

MINIMUM 56 1414 74 1871 92 2328

16”

MAXIMUM 76 1922 94 2379 112 2836

* INCH DIMENSIONS SHOWN ARE ROUNDED TO THE NEAREST INCH

126

110

130

2603

2215

2723

2332

2845

2443

2951

2551

3059

2697

3205

2785

3293

49

36

56

39

59

43

63

47

67

1241

908

1416

981

1489

1102

1610

1198

1706

67

54

74

57

77

61

81

65

85

1698

1365

1873

1438

1946

1559

2067

1655

2163

85

72

92

75

95

79

99

83

103

2155

1822

2330

1895

2403

2016

2524

2112

2620

103

90

110

93

113

97

117

101

121

2612

2279

2787

2352

2860

2473

2981

2569

3077

3. Installation of Upright Style Indicator Post

3.1 Fully OPEN the gate valve to which the Indicator Post is being attached.

3.2 Loosen but do not remove 2 Body Bolts (35) 3 turns. Remove Barrel (32) and Body Base (31) from inside Center Body (30).

Remove Operating Rod (26) from Indicator Post by sliding it out the bottom, See Fig. 2.

3.3 Position Body Base (31) on top of buried valve PIV plate and secure with 4 customer supplied bolts, washers, & nuts, See Fig. 3.

3.4 Remove Bolt (28), Flatwasher (38), and Lockwasher (39) from Upper Body (1) and lift Head Assembly from Center Body (30).

3.5 Slide Center Body (30) over Barrel (32) and slide down until BURY line cast on Center Body is even with planned finished grade soil level. Securely tighten 2 Body Bolts (35). See Fig. 2 & 3.

3.6 Insert 1” square Operating Rod (26) with attached Coupling (25) inside Barrel (32) and fully engage Coupling onto Operating

Nut of valve as shown in Fig. 3. Mark Operating Rod at a distance 10¾” from top edge of Center Body (30), See Fig. 4.

Remove Operating Rod (26) from Barrel (32) and cut off the top section of the 1” square Rod at location you just marked.

Remove any sharp edges from the Rod with a file.

3.7 Reinstall the shortened Operating Rod (26) into Barrel (32), making sure the Coupling (25) is fully engaged on Operating Nut of valve, See Fig. 3.

3.8 Reinstall the Head Assembly by sliding the 1” square pocket located in bottom side of Head Assembly onto

Operating Rod (26). Secure Head Assembly to Center Body (30) with Screw (28), Flatwasher (38), and Lockwasher (39).



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4

37

38

39

31

32

33

35

26

28

29

30

22

23

24

25

14

19

20

21

10

11

12

13

8

9

6

7

4

5

2

3

Table 4

UPRIGHT STYLE INDICATOR POST PARTS LIST

NO.

DESCRIPTION MATERIAL SPECIFICATION QTY.

1 UPPER BODY DUCTILE IRON ASTM A536 Gr. 65-45-12 1

CAP

T-HEAD BOLT, CAP

NUT, CAP

OPERATING STEM

RETAING RING, STEM

LEADING BOGIE

TARGET PLATE, OPEN

TARGET PLATE, SHUT

EXTENSION PLATE

TARGET ROD

VIEW WINDOW

GASKET, WINDOW

GUARD, WINDOW

SCREW, HEX HEAD CAP

WASHER

SCREW, SLOTTED FLAT HD.

PLUG, 1/2" PIPE

U-BOLT

STEEL, ZINC PLATED

FORGED STEEL

COTTER PIN STAINLESS STEEL

COUPLING, OPERATING ROD DUCTILE IRON

OPERATING ROD

SCREW, HEX HEAD CAP

WRENCH, OPERATING

CENTER BODY

STEEL

STAINLESS STEEL

DUCTILE IRON

DUCTILE IRON

BASE BODY

BARREL

SCREW, HEX HEAD CAP

SCREW, HEX HEAD CAP

SCREW, SOCKET HD. SET

WASHER, FLAT

WASHER, LOCK

DUCTILE IRON

DUCTILE IRON

STAINLESS STEEL

STAINLESS STEEL

STAINLESS STEEL

STAINLESS STEEL

STAINLESS STEEL

DUCTILE IRON

STEEL, ZINC PLATED

STEEL, ZINC PLATED

BRONZE

STAINLESS STEEL

BRONZE

ALUMINUM

ALUMINUM

ASTM A536 Gr. 65-45-12

ASTM A105

ASTM A105

ASTM B584 C84400 / B62 C83600

ASTM A276 S30400

ASTM B584 C84400 / B62 C83600

ASTM B26

ASTM B26

STEEL, PAINTED BLACK ASTM A1008

BRASS ASTM B16 C36000

POLYCARBONATE

RUBBER

COMMERCIAL

ASTM D2000 EPDM

CAST IRON

STAINLESS STEEL

STAINLESS STEEL

STAINLESS STEEL

ASTM B124 Gr. B

S30400

S30400

S30400

COMMERCIAL

ASTM A105

S30400

ASTM A536 Gr. 65-45-12

ASTM A105

S30400

ASTM A536 Gr. 65-45-12

ASTM A536 Gr. 65-45-12

ASTM A536 Gr. 65-45-12

ASTM A536 Gr. 65-45-12

S30400

S30400

S30400

S30400

S30400

6

1

1

3

2

1

1

1

1

1

1

1

1

1

1

4

4

2

4

2

2

2

2

2

2

1

1

2

1

1

2

Fig. 2



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Fig. 4

4. OPEN and SHUT Target Adjustment

4.1 All NIBCO Indicator Posts are shipped for use with

“left-hand” (counter-clockwise) opening valves.

4.2 Remove two Nuts (4) and two T-Head Bolts (3) that secure Cap (2) to Indicator Post. See Fig. 2.

4.3 Grasp Cap (2) and remove from Indicator Post by lifting upward until Target assembly is clear.

4.4 Target Plates (8 & 9) must be positioned with the OPEN

Plate (8) above the SHUT Plate (9) for “left-hand”

(counter-clockwise) opening valves. See Fig. 5.

Fig. 3



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Table 5

TARGET ASSEMBLY PARTS LIST

NO.

DESCRIPTION MATERIAL SPECIFICATION

7 LEADING BOGIE BRONZE ASTM B584 C84400 / B62 C83600

10

11

8

9

21

37

TARGET PLATE, OPEN

TARGET PLATE, SHUT

EXTENSION PLATE

TARGET ROD

SCREW, SLOTTED FLAT HD.

SCREW, SOCKET HD. SET

ALUMINUM

ALUMINUM

ASTM B26

ASTM B26

STEEL, PAINTED BLACK ASTM A1008

BRASS ASTM B16 C36000

STAINLESS STEEL

STAINLESS STEEL

S30400

S30400

4

6

2

2

QTY.

1

2

2 www.nibco.com

6

Fig. 5

NOTE: Only half of assembly is shown

4.5 Position OPEN Target Plates (8) so they are in the full upward position for “left-hand” (counter-clockwise) opening valves.

Secure OPEN Target Plates (8) by tightening Screws (37a). See Fig. 6.

4.6 Determine the number of turns required to fully open the valve. See Table 1 for NIBCO valves. You should always confirm actual turns required to open the valve by counting them.

4.7 Using Table 6, choose the closest “Number of Turns to Open Valve” and the corresponding “Distance Between Targets” dimension “X”.

4.8 Measure and position both SHUT Target Plates (9) at dimension “X” from OPEN Target Plates (8). See Fig. 6.

4.9 Secure both SHUT Target Plates (9) by tightening Screws (37a) with an Allen wrench.



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Table 6

NUMBER

OF TURNS

TO OPEN

VALVE

17

18

19

20

21

22

23

14

15

16

10

11

12

13

ADJUSTMENT OF TARGET PLATES

0.650

0.750

0.850

0.950

1.050

1.150

1.250

0.050

0.150

0.250

0.350

0.450

0.550

DISTANCE

BETWEEN TARGETS

X

INCH

0.000

MM

0.0

1.3

3.8

6.4

8.9

11.4

14.0

16.5

19.1

21.6

24.1

26.7

29.2

31.8

NUMBER

OF TURNS

TO OPEN

VALVE

31

32

33

34

35

36

37

28

29

30

24

25

26

27

2.050

2.150

2.250

2.350

2.450

2.550

2.650

1.450

1.550

1.650

1.750

1.850

1.950

DISTANCE

BETWEEN TARGETS

X

INCH

1.350

MM

34.3

36.8

39.4

41.9

44.5

47.0

49.5

52.1

54.6

57.2

59.7

62.2

64.8

67.3

NUMBER

OF TURNS

TO OPEN

VALVE

45

46

47

48

49

50

51

42

43

44

38

39

40

41

3.450

3.550

3.650

3.750

3.850

3.950

4.050

2.850

2.950

3.050

3.150

3.250

3.350

DISTANCE

BETWEEN TARGETS

X

INCH

2.750

MM

69.9

72.4

74.9

77.5

80.0

82.6

85.1

87.6

90.2

92.7

95.3

97.8

100.3

102.9

POSITIONING OF OPEN TARGET PLATES FOR VIEW WINDOW

STANDARD TARGET

LOCATION FOR “LEFT-HAND”

(COUNTER-CLOCKWISE)

OPENING VALVES

Fig. 6 Fig. 7



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6. Positioning of Targets in View Window

6.1 Rotate Square Operating Stem (5) positioning the center of the OPEN Target Plate (8) until it is located 6¾” from the inside lip of Cap (2). See Fig. 7.

6.2 Verify that the valve is in full OPEN position.

6.3 Reinstall the Cap (2) & Target assembly into the Upper Body (1) making sure both alignment ears on bronze Leading Bogie (7) straddle the guides cast on the inside of the Upper Body. See Fig. 2.

6.4 Reinstall 2 T-Head Bolts (3) in Cap and secure with 2 Nuts (4).

6.5 Check to assure that the OPEN Target Plate (8) is centered in both sides of the view window.

7. Operation

7.1 The post indicator valve (PIV) can be opened or shut by simply placing the Operating Wrench (29) onto Operating Stem (5) and rotating in the desired direction. To open the valve, simply turn the wrench in the counter-clockwise direction as indicated on

Cap (2). To shut the valve, simply turn the wrench in the clockwise direction. See Fig. 2.

7.2 The Target Plates (8) (9) can be visually checked in the view windows to determine if PIV is open or shut.

7.3 After installation, the PIV should be cycled to the full shut position and both view windows should be visually inspected to assure the SHUT target plates are centered. The PIV should then be cycled to the full open position and both view windows should be visually inspected to assure the OPEN target plates are centered.

7.4 Valve position can be secured by simply placing the Operating Wrench (29) over the Operating Stem (5) and over U-bolt (23). A customer supplied lock can be installed into the U-bolt securing Operating Wrench to the indicator post, preventing valve operation.

7.5 NIBCO Indicator Posts have provisions to add a Security Wire thru the Cap T-bolts (3) and Operating Stem (5) to prevent valve operation.

8. Maintenance

8.1 Lubrication should be added to oil hole located in top of Operating Stem (5) on an annual basis. Note: it is necessary to remove the Operating Wrench (29) to expose the oil hole.

8.2 Periodic visual inspection is recommended.

8.3 Exercising (cycling) of the valve to assure proper function is recommended.

9. Repair Parts

9.1 Some specialty components are available for replacement if needed. See Table 7.

9.2 Common fasteners such as nuts, bolts, and washers are available at your local hardware.

Table 7

REPAIR PARTS ADJUSTABLE HEIGHT UPRIGHT STYLE

NO.

3

12

13

14

24

DESCRIPTION

T-HEAD BOLT

VIEW WINDOW

WINDOW GASKET

WINDOW GUARD

COTTER PIN

PART NO.

NP1AU10

NP1AU06

NP1AU09

NP1AU07

NP1AU21

NO.

25

26

26

26

26

29

DESCRIPTION PART NO.

OPERATING ROD COUPLING NP1AU22

OPERATING ROD 72" NP1AU16

OPERATING ROD 90" NP1AU16E

OPERATING ROD 108"

OPERATING ROD 126"

OPERATING WRENCH

NP1AU16EE

NP1AU16EEE

NP1AU17

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Nibco NIP 1AU Upright Indicator Post Maintenance Guide

INSTALLATION, OPERATION, and MAINTENANCE GUIDE

NIBCO Adjustable Height Upright Indicator Posts

Series NIP-1AU

1. Application

2. Indicator Post Selection

DIMENSIONAL DATA FOR NIBCO RWGV AND IBBM GATE VALVES

VALVE

SIZE

NIBCO RESILIENT WEDGE GATE VALVES

(RWGV)

NIBCO IRON BODY BRONZE MOUNTED

GATE VALVES (IBBM)

A B

Table 1

A B

NIBCO UPRIGHT INDICATOR POST

ADJUSTABLE HEIGHT RANGE

Table 2

Fig. 1

Table 3 NIBCO UPRIGHT INDICATOR POST VALVE BURY DEPTH

3. Installation of Upright Style Indicator Post

Table 4

UPRIGHT STYLE INDICATOR POST PARTS LIST

Fig. 2

Fig. 4

4. OPEN and SHUT Target Adjustment

Fig. 3

Table 5

TARGET ASSEMBLY PARTS LIST

Fig. 5

Table 6

ADJUSTMENT OF TARGET PLATES

POSITIONING OF OPEN TARGET PLATES FOR VIEW WINDOW

Fig. 6 Fig. 7

6. Positioning of Targets in View Window

7. Operation

8. Maintenance

9. Repair Parts

Table 7

REPAIR PARTS ADJUSTABLE HEIGHT UPRIGHT STYLE

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