Threaded flanges are threaded in the bore to match an external
thread on the pipe. The threads are tapered to create a seal
between the flange and pipe as the tapers approach the same
diameter. These flanges are normally designed for low pressure,
Cangzhou Hangsheng Flange & Pipeline Equipment Co.,Ltd has been
a international manufacturer of flanges and precision machining in
carbon steel, stainless steel and the alloys since 2002. We also
manufacture DIN/JIS/BS (Metric) flanges, orifice unions, galvanized
flanges, long weld necks, pad flanges / studding outlets, special
facings and custom flanges.
Orifice flanges may be provided in one of three types of flanges:
Welding Neck, Slip-On and Threaded. Each flange is provided with a
pair of pressure taps for measurement of pressure drop in the flow
through the orifice plate.