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Where can I find a caliper (or something similiar) to measure spur gear teeth pitch. Northern Gauge Sherwood Park Ab

I understand the dangers of mismatching hammer union sizes. I am after specific acme thread sizes pitch major diameter, pitch diameter, minor diameter information for style 1502 Blue hammer nuts. Please advise and Thanks much.... Northern Gauge Sherwood Park Ab

I assume you are using an optical reticle for inspection of the part. Obviously the higher the magnification the higher the accuracy of the measurement. You want to invest in a calibration block to verify your measuring accuracy. Northern Gauge Sherwood Park Ab

Keep in mind that there are different types of NPT gauges that gauge different characteristics of the thread. The NPT L1 plug checks for hand tight engagement and will not check the thread taper. In order to check the taper one must also purchase either a NPT L3 plug which checks wrench tight...

Is there some exception in ASME regarding not having to perform PWHT on minor surface weld repairs (i.e. porosity of RTJ surface), eventhough the WPS has been qualified with PWHT. Northern Gauge Sherwood Park Ab

Hello, gauge dimensions for coated part threads are based on gauge maker tolerances along with the coating thickness of the part. I carry a line of thread gauging call Northern Gauge in Canada; perhaps I can help supply you a gauge for your specific application. Regards, Peter Northern Gauge...

Please advise what specification is used to manufacture the thread gauges go and nogo for the following: 6" api 6a back pressure valve threads HBPV Atlas Bradford gauges and the like. thanks much....