What is a Van Stone flange?
Van Stone Flange – This is a two piece flange with a rotating ring that makes bolt alignment simple. This flange has one female threaded end to connect to a male threaded fitting or nipple.
How do you calculate flange force?
Fbu = T × 12/(k dnom) U.S. Customary Units (Equation 2) Where, F bu = Bolt force from torque, lbf. T = Torque, ft.lb. k = Nut factor, dimensionless dnom = Nominal bolt diameter, in. The total force on the flange from bolt-up becomes the force of a given bolt times the number of bolts.
What is the torque on a 1 inch bolt?
Recommended bolt torques
| Size (in) | Torque (lbf ft) | |
|---|---|---|
| SAE Grade 2 | 18-8 S/S | |
| 3/4 | 115 | 128 |
| 7/8 | 129 | 194 |
| 1 | 188 | 287 |
Are Van Stone flanges raised face?
One note of caution – the van stone surface creates a raised face and is a sheet metal surface (no serrated surface) so gasket accordingly.
What is a Van Stone thermowell?
Ashcroft® Van Stone thermowell isolates and protects a temperature instrument’s sensing element from pressurized, high velocity and corrosive media. They ensure longer life and accurate measurement while allowing the sensing instrument to be removed without shutting down the process.
How big are Van Stone PVC pipe flanges?
Sizes 10″, 12″, 14″ and 16″ flanges are Van Stone style which means they have a free-floating ring that enables the bolt holes to be aligned after the flange has been assembled to the pipe, greatly simplifying installation.
What is the temperature of Van Stone flanges?
Rotating flanges are also known as Van Stone flanges; they swivel for easy bolt hole alignment. Made of CPVC, these flanges can handle high temperatures up to 200° F.
Can you use PTFE on Van Stone flanges?
Tape or sealants with PTFE are not recommended for plastic-to-plastic connections. Rotating flanges are also known as Van Stone flanges; they swivel for easy bolt hole alignment. Made of CPVC, these flanges can handle high temperatures up to 200° F.
Why do you need loose ring Vanstone flanges?
Loose-ring Vanstone flanges allow for greater flexibility during installation. Interior remains smooth in virtually every service, making it resistant to rust, pit, scale and corrosion