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Aluminum Fin Style Deflection Gauge:
• Lightweight, corrosion-resistant
• Field-verifiable without a proving ring
• Assembles without tools
• All sizes fit through standard 24" manhole
• Fins for 4"-15" gauges have skid size equal to the nominal pipe size—gauge will meet regional codes and will not tip in the line
• Nine-fin design ensures testing accuracy
• Open design allows gravel and debris pass-through

 
Cherne Aluminum Fin Style Deflection Gauge

Cherne Field Verification: Field Verification:
Cherne's Fin Style Deflection Gauges are designed to be field verified by inspectors without the use of a proving ring. Simply place two fins end to end as pictured to the right and measure the width.

Add one inch to the mandrel and you have the outside dimension of the gauge. Using this method simplifies the inspector's job of verifying sizes on deflection gauges.

 

Part Number

Nominal Size

Pipe

Deflection

Product Weight

Aluminum Fin Sets

285688

6", 8", 10"

SDR 26

5%

18 lbs

285005

6", 8", 10"

SDR 35

5%

18 lbs

285013

6", 8", 10"

SDR 35

7.5%

18 lbs

285698

8", 10", 12"

SDR 26

5%

19 lbs

285021

8", 10", 12"

SDR 35

5%

19 lbs

285048

8", 10", 12"

SDR 35

7.5%

19 lbs

 

Mandrels

285617

10"

Mandrel (4" -15" Fins)

288250

24"

Mandrel (18"- 48" Fins)

 

 

Nominal Size

Pipe

5% Deflection

7.5% Deflection

Product Weight

Deflection Gauge Part Numbers

4"

SDR 35

285056

285137

1.5 lbs

6"

SDR 26

285638

Custom

2 lbs

6"

SDR 35

285072

285153

2 lbs

8"

SDR 26

285648

Custom

2.5 lbs

8"

SDR 35

285080

285161

2.5 lbs

10“

SDR 26

285658

Custom

3 lbs

10“

SDR 35

285099

285188

3 lbs

12“

SDR 26

285668

Custom

4 lbs

12“

                                                                                                SDR 35

285102

285196

4 lbs

15“

   SDR 26

285678

Custom

5 lbs

15“

  SDR 35

285110

285218

5 lbs

18“

   SDR 35

285536

285560

8 lbs

21“

   SDR 35

285544

285579

10 lbs

24“

    SDR 35

285552

285587

11 lbs

27“

SDR 35

285595

285609

12 lbs


Larger and custom sizes are available