Products Testing Equipment / Tools & Accessories Deflection Testing

Deflection Testing

Deflection gauges (mandrels) are used to test flexible sewer pipe for out of roundness or deflection per ASTM specifications D3034 and F679.  This testing ensures that flexible pipe has been properly bedded and backfilled to give optimal performance. 

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285-698_h.jpg - Cherne® 6-10 in. 5% Aluminum Fin Set Deflection Gauge Kit for SDR 26 Pipe

Cherne® 5% Aluminum Fin Set Deflection Gauge Kits For SDR-26 Pipe Per ASTM D3034 (4"-15" Diameter)

Cherne

Waterworks

Deflection Testing

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

5.764 in. (146.41 mm), 7.715 in. (195.96 mm), 9.644 in. (244.96 mm)

5.33 in. (135.38 mm), 7.11 in. (180.59 mm), 8.87 in. (225.30 mm)

5.612 in. (142.54 mm), 7.488 in. (190.20 mm), 9.342 in. (237.29 mm)

6 in. (152.40 mm), 8 in. (203.20 mm), 10 in. (254.00 mm)

19 lb.

No

7.715 in. (195.96 mm), 9.644 in. (244.96 mm), 11.480 in. (291.59 mm)

7.11 in. (180.59 mm), 8.87 in. (225.30 mm), 10.55 in. (267.97 mm)

7.488 in. (190.20 mm), 9.342 in. (237.29 mm), 11.102 in. (281.99 mm)

8 in. (203.20 mm), 10 in. (254.00 mm), 12 in. (304.80 mm)

Yes

18 lb.

285-698_h.jpg - Cherne® 6-10 in. 5% Aluminum Fin Set Deflection Gauge Kit for SDR 35 Pipe

Cherne® 5% Aluminum Fin Set Deflection Gauge Kits For SDR-35 Pipe Per ASTM D3034 (4"-15" Diameter)

Cherne

Waterworks

Deflection Testing

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

No

5.893 in. (149.68 mm), 7.891 in. (200.43 mm), 9.864 in. (250.55 mm)

5.46 in. (138.68 mm), 7.28 in. (184.91 mm), 9.09 in. (230.89 mm)

5.742 in. (145.85 mm), 7.665 in. (194.69 mm), 9.563 in. (242.90 mm)

6 in. (152.40 mm), 8 in. (203.20 mm), 10 in. (254.00 mm)

18 lb.

7.891 in. (200.43 mm), 9.864 in. (250.55 mm), 11.737 in. (298.12 mm)

7.28 in. (184.91 mm), 9.09 in. (230.89 mm), 10.79 in. (274.07 mm)

7.665 in. (194.69 mm), 9.563 in. (242.90 mm), 11.360 in. (288.54 mm)

8 in. (203.20 mm), 10 in. (254.00 mm), 12 in. (304.80 mm)

Yes

19 lb.

675115285019_H_001.jpg - Cherne® FIN SET 4 IN. SDR 35 5%

Cherne® 5% Deflection Aluminum Fin Sets for SDR-35 Pipe Per ASTM D3034 (4"-15" Diameter)

Cherne

Waterworks

Deflection Testing

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

No

Consult Factory

4 in. (100 mm)

1.5 lb.

5.893 in. (149.68 mm)

5.46 in. (138.68 mm)

5.742 in. (145.85 mm)

6 in. (150 mm)

2 lb.

7.891 in. (200.43 mm)

7.28 in. (184.91 mm)

7.665 in. (194.69 mm)

8 in. (200 mm)

Yes

2.5 lb.

9.864 in. (250.55 mm)

9.09 in. (230.89 mm)

9.563 in. (242.90 mm)

10 in. (254.00 mm)

3 lb.

11.737 in. (298.12 mm)

10.79 in. (274.07 mm)

11.360 in. (288.54 mm)

12 in. (304.80 mm)

4 lb.

14.374 in. (365.10 mm)

13.20 in. (335.28 mm)

13.897 in. (352.98 mm)

15 in. (380 mm)

5 lb.

675115285019_H_001.jpg - Cherne® FIN SET 6 IN. SDR 26 5%

Cherne® 5% Deflection Aluminum Fin Sets for SDR-26 Pipe Per ASTM D3034 (4"-15" Diameter)

Cherne

Waterworks

Deflection Testing

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

5.764 in. (146.41 mm)

5.33 in. (135.38 mm)

5.612 in. (142.54 mm)

6 in. (150 mm)

2 lb.

7.715 in. (195.96 mm)

7.11 in. (180.59 mm)

7.488 in. (190.20 mm)

8 in. (200 mm)

Yes

2.5 lb.

9.644 in. (244.96 mm)

8.87 in. (225.30 mm)

9.342 in. (237.29 mm)

10 in. (254.00 mm)

3 lb.

11.48 in. (291.59mm)

10.55 in. (267.97 mm)

11.102 in. (281.99 mm)

12 in. (304.80 mm)

4 lb.

14.053 in. (356.95 mm)

12.90 in. (327.66 mm)

13.575 in. (344.81 mm)

15 in. (381.00 mm)

5 lb.

285-048_h.jpg - Cherne® DEFLECTION GAUGE SET, 6-10, 7.5%

Cherne® 7.5% Aluminum Fin Set Deflection Gauge Kits For SDR-35 Pipe Per ASTM D3034 (4"-15" Diameter)

Cherne

Waterworks

Deflection Testing

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

No

5.893 in. (149.68 mm), 7.891 in. (200.43 mm), 11.737 in. (298.12 mm)

5.31 in. (134.90 mm), 7.09 in. (180.10 mm), 10.51 in. (267.00 mm)

5.742 in. (145.85 mm), 7.665 in. (194.69 mm), 11.360 in. (288.54 mm)

6 in. (152.40 mm), 8 in. (203.20 mm), 10 in. (304.80 mm)

18 lb.

7.891 in. (200.43 mm), 9.864 in. (250.55 mm), 11.737 in. (298.12 mm)

7.09 in. (180.10 mm), 8.85 in. (224.80 mm), 10.51 in. (267.00 mm)

7.665 in. (194.69 mm), 9.563 in. (242.90 mm), 11.360 in. (288.54 mm)

Yes

8 in. (203.20 mm), 10 in. (254.00 mm), 12 in. (304.80 mm)

19 lb.

675115285019_H_001.jpg - Cherne® 18 In. Aluminum Fit Set for PS 115 (SDR-26) Pipe Per ASTM F679

Cherne® 5% Deflection Aluminum Fin Sets for PS 115 (SDR-26) Pipe Per ASTM F679 (18"-48" Diameter)

Cherne

Waterworks

Deflection Testing

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

17.278 in. (438.86 mm)

15.85 in. (402.59 mm)

16.688 in. (423.87 mm)

18 in. (457.20 mm)

8 lb.

No

20.370 in. (517.40 mm)

18.68 in. (474.47 mm)

19.666 in. (499.52 mm)

21 in. (525 mm)

10 lb.

No

22.918 in. (582.12 mm)

21.00 in. (533.40 mm)

22.102 in. (561.39 mm)

24 in. (600 mm)

Yes

11 lb.

25.829 in. (656.06 mm)

23.65 in. (600.71 mm)

24.899 in. (632.43 mm)

27 in. (685.80 mm)

12 lb.

No

29.566 in. (750.97 mm)

27.10 in. (688.34 mm)

28.523 in. (724.48 mm)

30 in. (762.00 mm)

13 lb.

No

35.389 in. (898.88 mm)

32.41 in. (823.21 mm)

34.120 in. (866.65 mm)

36 in. CIOD (914.40 mm)

15 lb.

No

41.116 in. (1044.35 mm)

37.64 in. (956.06 mm)

39.621 in. (1006.37 mm)

42 in. CIOD (1066.8 mm)

17 lb.

No

46.937 in. (1192.20 mm)

42.96 in. (1091.18 mm)

45.216 in. (1148.49 mm)

48 in. CIOD (1219.20 mm)

19 lb.

No

675115285019_H_001.jpg - Cherne® 4 In. 7.5% Deflection Aluminum Fin Set for SDR-35 Pipe Per ASTM D3034

Cherne® 7.5% Deflection Aluminum Fin Sets for SDR-35 Pipe Per ASTM D3034 (4"-15" Diameter)

Cherne

Waterworks

Deflection Testing

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

4 in. (100 mm)

1.5 lb.

No

5.893 in. (149.68 mm)

5.31 in. (134.90 mm)

5.742 in. (145.85 mm)

6 in. (150 mm)

2 lb.

7.891 in. (200.43 mm)

7.09 in. (180.10 mm)

7.665 in. (194.69 mm)

8 in. (200 mm)

Yes

2.5 lb.

9.864 in. (250.55 mm)

8.85 in. (224.80 mm)

9.563 in. (242.90 mm)

10 in. (254.00 mm)

3 lb.

11.737 in. (298.12 mm)

10.51 in. (267.00 mm)

11.360 in. (288.54 mm)

12 in. (304.80 mm)

4 lb.

14.374 in. (365.10 mm)

12.85 in. (326.40 mm)

13.897 in. (352.98 mm)

15 in. (381.00 mm)

5 lb.

No

073-202_h.jpg - Cherne® PROVING RING, 6 IN. 5% Deflection, SDR 35

Cherne® Proving Rings

Cherne

Waterworks

Deflection Testing

Standard sizes: 6 in.-18 in. SDR 35 5% deflection and 8 in.-12 in. SDR 35 7.5% deflection

Custom sizes available for 5 in.- 30 in.

For sizing and pricing contact Customer Service

No

6 in. (150 mm)

4 oz.

Yes

8 in. (200 mm)

4 oz.

8 in. (200 mm)

6 oz.

10 in. (250 mm)

4 oz.

10 in. (250 mm)

6 oz.

12 in. (300 mm)

7 oz.

12 in. (300 mm)

6 oz.

15 in. (380 mm)

6 oz.

18 in. (460 mm)

7 oz.

285-552_h.jpg - Cherne® FIN SET 18 IN. SDR 35 5%

Cherne® 5% Deflection Aluminum Fin Sets for PS 46 (SDR-35) Pipe Per ASTM F679 (18"-48" Diameter)

Cherne

Waterworks

Deflection Testing

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

No

17.643 in. (448.13 mm)

16.20 in. (411.48 mm)

17.054 in. (433.17 mm)

18 in. (457.20 mm)

8 lb.

20.800 in. (528.32 mm)

19.09 in. (484.89 mm)

20.098 in. (510.49 mm)

21 in. (525 mm)

10 lb.

23.402 in. (594.41 mm)

21.46 in. (545.08 mm)

22.586 in. (573.68 mm)

24 in. (600 mm)

Yes

11 lb.

26.374 in. (669.90 mm)

24.17 in. (613.92 mm)

25.446 in. (646.33 mm)

27 in. (685.80 mm)

12 lb.

30.192 in. (766.88 mm)

27.69 in. (703.33 mm)

29.151 in. (740.44 mm)

30 in. CIOD (762.00 mm)

13 lb.

36.135 in. (917.83 mm)

33.13 in. (841.50 mm)

34.869 in. (885.67 mm)

36 in. CIOD (914.40 mm)

15 lb.

41.984 in. (1066.39 mm)

38.47 in. (977.14 mm)

40.491 in. (1028.47 mm)

42 in. CIOD (1066.80 mm)

17 lb.

47.927 in. (1217.35 mm)

43.90 in. (1115.06 mm)

46.209 in. (1173.71 mm)

48 in. CIOD (1219.20 mm)

19 lb.

675115286573_H_001.jpg - Cherne® 8 In. 5% Fixed Steel Deflection Gauge for SDR-35 Pipe Per ASTM D3034

Cherne® 5% Fixed Steel Deflection Gauges for SDR-35 Pipe Per ASTM D3034 (4"-15" Diameter)

Cherne

Waterworks

Deflection Testing

Fixed steel design

Durable, zinc-plated construction resists corrosion

Conforms to mandrel sizing specification-blade length is equal to or greater than the nominal pipe size

Nine-arm design ensures testing accuracy

Open design allows gravel and debris pass-through

No

7.28 in. (184.91 mm)

7.665 in. (194.69 mm)

7.891" (200.43 mm)

8 in. (200 mm)

7 lb.

Yes

9.09 in. (230.89 mm)

9.563 in. (242.90 mm)

9.864" (250.55 mm)

10 in. (254.00 mm)

8 lb.

10.79 in. (274.07 mm)

11.360 in. (288.54 mm)

11.737" (298.12 mm)

12 in. (304.80 mm)

9 lb.

13.20 in. (335.28 mm)

13.897 in. (352.98 mm)

14.374" (365.10 mm)

15 in. (381.00 mm)

13.5 lb.

675115285019_H_001.jpg - Cherne® Fin Set 18 In Sdr 26 7.5% 15.44 Ga Dia

Cherne® 7.5% Deflection Aluminum Fin Sets for PS 115 (SDR-26) Pipe Per ASTM F679 (18"-48" Diameter)

Cherne

Waterworks

Deflection Testing

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

17.278 in. (438.86 mm)

15.44 in. (392.18 mm)

16.688 in. (423.87 mm)

18 in. (460 mm)

8 lb.

Yes

20.370 in. (517.40 mm)

18.19 in. (462.03 mm)

19.666 in. (499.52 mm)

21 in. (525 mm)

10 lb.

No

22.918 in. (582.12 mm)

20.44 in. (519.18 mm)

22.102 in. (561.39 mm)

24 in. (600 mm)

11 lb.

No

25.829 in. (656.06 mm)

23.03 in. (584.96 mm)

24.899 in. (632.43 mm)

27 in. (685.80 mm)

12 lb.

No

29.566 in. (750.97 mm)

26.38 in. (670.05 mm)

28.523 in. (724.48 mm)

30 in. CIOD (762.00 mm)

Yes

13 lb.

No

35.389 in. (898.88 mm)

31.56 in. (801.62 mm)

34.120 in. (866.65 mm)

36 in. CIOD (914.40 mm)

15 lb.

No

41.116 in. (1044.35 mm)

36.65 in. (930.91 mm)

39.621 in. (1006.37 mm)

42 in. CIOD (1066.80 mm)

17 lb.

No

46.937 in. (1192.20 mm)

41.82 in. (1062.23 mm)

45.216 in. (1148.49 mm)

48 in. CIOD (1219.20 mm)

19 lb.

No

675115285019_H_001.jpg - Cherne® 18 In. 7.5% Deflection Aluminum Fin Set for PS 46 (SDR-35)

Cherne® 7.5% Deflection Aluminum Fin Sets for PS 46 (SDR-35) Pipe Per ASTM F679 (18"-48" Diameter)

Cherne

Waterworks

Deflection Testing

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

17.643 in. (448.13 mm)

15.77 in. (400.56 mm)

17.054 in. (433.17 mm)

18 in. (457.20 mm)

Yes

8 lb.

20.800 in. (528.32 mm)

18.59 in. (472.19 mm)

20.098 in. (510.49 mm)

21 in. (525 mm)

10 lb.

No

26.374 in. (669.90 mm)

23.53 in. (597.66 mm)

25.446 in. (646.33 mm)

27 in. (685.80 mm)

12 lb.

No

30.192 in. (766.88 mm)

26.96 in. (684.78 mm)

29.151 in. (740.44 mm)

30 in. CIOD (762.00 mm)

Yes

13 lb.

No

36.135 in. (917.83 mm)

32.25 in. (819.15 mm)

34.869 in. (885.67 mm)

36 in. CIOD (914.40 mm)

15 lb.

No

41.984 in. (1066.39 mm)

37.45 in. (951.23 mm)

40.491 in. (1028.47 mm)

42 in. CIOD (1066.80 mm)

17 lb.

No

47.927 in. (1217.35 mm)

42.74 in. (1085.60 mm)

46.209 in. (1173.71 mm)

48 in. CIOD (1219.20 mm)

19 lb.

No

675115285019_H_001.jpg - Cherne® 6 In. 7.5% Deflection Aluminum Fin Set for SDR-26 Pipe Per ASTM D3034

Cherne® 7.5% Deflection Aluminum Fin Sets for SDR-26 Pipe Per ASTM D3034 (4"-15" Diameter)

Cherne

5.764 in. (146.41 mm)

5.19 in. (131.80 mm)

5.612 in. (142.54 mm)

6 in. (150 mm)

Waterworks

Deflection Testing

1

2 lb.

Yes

Open design allows gravel and debris pass-through

Lightweight, corrosion-resistant

Field-verifiable without a proving ring

Assembles without tools

All sizes fit through standard 24 in. manhole

Fins for 4 in.-15 in. gauges have skid size equal to th nominal pipe size-gauge will meet regional codes and will not tip in the line

Nine-fin design ensures testing accuracy

675115286726_H_001.jpg - Cherne® 18 In. 7.5% Fixed Steel Deflection Gauge for PS 46 (SDR-35) Pipe Per ASTM F679

Cherne® 7.5% Fixed Steel Deflection Gauges for PS 46 (SDR-35) Pipe Per ASTM F679 (18"-48" Diameter)

Cherne

Waterworks

Deflection Testing

15.77 in. (400.56 mm)

17.054 in. (433.17 mm)

17.643" (448.13 mm)

18 in. (457.20 mm)

1

15 lb.

Yes

Fixed steel design

Durable, zinc-plated construction resists corrosion

Conforms to mandrel sizing specification-blade length is equal to or greater than the nominal pipe size

Nine-arm design ensures testing accuracy

Open design allows gravel and debris pass-through

No

675115286726_H_001.jpg - Cherne® 6 In. 7.5% Fixed Steel Deflection Gauge for SDR-35 Pipe Per ASTM D3034

Cherne® 7.5% Fixed Steel Deflection Gauges for SDR-35 Pipe Per ASTM D3034 (4"-15" Diameter)

Cherne

Waterworks

Deflection Testing

Fixed steel design

Durable, zinc-plated construction resists corrosion

Conforms to mandrel sizing specification-blade length is equal to or greater than the nominal pipe size

Nine-arm design ensures testing accuracy

Open design allows gravel and debris pass-through

No

5.31 in. (134.90 mm)

5.742 in. (145.85 mm)

5.893" (149.68 mm)

6 in. (150 mm)

5 lb.

Yes

7.09 in. (180.10 mm)

7.665 in. (194.69 mm)

7.891" (200.43 mm)

8 in. (200 mm)

7 lb.

675115285613_H_001.jpg - Cherne® 10 In. Mandrel for 4-15 In. Aluminum Fin Sets

Cherne® Core Mandrels for Aluminum Finned Deflection Gauges

Cherne

Waterworks

Deflection Testing

Core Mandrel for Aluminum Finned Deflection Gauges

No

10 in. Mandrel for 4 in. – 15 in. aluminum fin sets

Yes

24 in. Mandrel for 18 in. – 48 in. aluminum fin sets

There are no results available

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