Velocity Washer

Velocity Washer™

Is galling delaying breakouts on your torqued flange assemblies? Then you need the Velocity Washer™!

Designed and patented by our own experts, the Velocity Washer eliminates galling, reducing downtime and costs and increasing production. Installed like a regular washer, the Velocity Washer is easy to use and ideal for exchangers, reactors, and blindpoints. With over 100 million combined usage hours and installations all over North America ranging from -40° to over 700° Fahrenheit, the Velocity Washer has gained our clients up to 94% time savings and 70% cost savings. Find out how our Velocity Washer can help you eliminate galling today.

Patented – US Patent #8,579,572   |   CA Patent #2794673  China Patent #ZL 201380048895X  |  Europe Patent #2875245

Velocity Washer
Velocity Washer

FEATURES

HOW IT WORKS

Place on Stud

Velocity Washer on stud

To install, simply place the Velocity Washer on the stud. Due to its symmetric design, it can’t be installed in the wrong orientation, delivering the simplest installation.

Torque the Nut

Torqued nut on Velocity Washer

Torque the nut on using standard procedures: there are no special tools.

Turn the Nut

Nut turned to left

As always, turn the nut to the left. It will take less than one stroke of the torque wrench for the Velocity Washer to release all load.

Run the Nut Off

All load removed

Once the Velocity Washer pops, all load will be removed, allowing the nut to be easily run off.

Specifications & Dimensions

Velocity Washer™ provides the same load distribution benefits as using a traditional hardened washer and meets ASTM F436 specification for material, hardness, and fitment. Standard specifications such as size, stress area, and maximum bolt load are listed below. For information regarding a Velocity Washer™ outside this range, please contact our experts.

Velocity Washer

Specifications Sheet

Nominal Bolt Size
Material
Hardness
Outer Diameter
Height
Activation Displacement
Activation Rotation
Stress Area
Stress-to-bolt Area Ratio
Maximum Bolt Load
Maximum Bolt Stress
Maximum Grip Length
in
AISI
HRC
in
in
in
ͦ
in2
kip
ksi
in
1
4340 HT
38-45
1.99
0.44
0.08
12.5
1.44
2.38
64
105
8
1  1/8
4340 HT
38-45
2.24
0.44
0.08
12.5
1.83
2.32
83
 105
9
1  1/4
4340 HT
38-45
2.49
0.44
0.08
12.5
2.26
2.26
105
 105
10
1 3/8
4340 HT
38-45
2.74
0.44
0.08
12.5
2.74
2.22
130
 105
11
1 1/2
4340 HT
38-45
2.99
0.44
0.08
12.5
3.27
2.19
157
 105
12
1 5/8
4340 HT
38-45
3.24
0.55
0.09
12.5
3.84
2.16
186
 105
13
1 3/4
4340 HT
38-45
3.36
0.55
0.09
12.5
4.02
1.93
219
 105
14
1 7/8
4340 HT
38-45
3.49
0.55
0.09
12.5
4.23
1.75
253
 105
15
2
4340 HT
38-45
3.74
0.55
0.09
12.5
4.88
1.76
291
 105
16
2 1/4
4340 HT
38-45
3.99
0.62
0.10
12.5
5.31
1.49
373
 105
18
2 1/2
4340 HT
38-45
4.49
0.62
0.10
12.5
6.80
1.53
466
 105
20
2 3/4
4340 HT
38-45
4.99
0.62
0.10
12.5
8.48
1.56
515
95
22
3+
–Please Call–
Nominal Bolt SizeMaterialHardnessOuter DiameterHeightActivation DisplacementActivation RotationStress AreaStress-to-bolt Area RatioMaximum Bolt LoadMaximum Bolt StressMaximum Grip Length
inAISIHRCininin0in2kipksiin
14340 HT38-451.990.440.0812.51.442.38641058
1-1/84340 HT38-452.240.440.0812.51.832.32831059
1-1/44340 HT38-452.490.440.0812.52.262.2610510510
1-3/84340 HT38-452.740.440.0812.52.742.2213010511
1-1/24340 HT38-452.990.440.0812.53.272.1915710512
1-5/84340 HT38-453.240.550.0912.53.842.1618610513
1-3/44340 HT38-453.360.550.0912.54.021.9321910514
1-7/84340 HT38-453.490.550.0912.54.231.7525310515
24340 HT38-453.740.550.0912.54.881.7629110516
2-1/4
4340 HT38-453.990.620.1012.55.311.4937310518
2-1/24340 HT38-454.490.620.1012.56.801.5346610520
2-3/44340 HT38-454.990.620.1012.58.481.565159522
3+–Please Call––Please Call––Please Call––Please Call––Please Call––Please Call––Please Call––Please Call––Please Call––Please Call––Please Call–

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