Stainless Steel BSP and NPT Pipe Fittings
Stainless Steel BSP Thread Pipe Fittings are a family of fittings used to connect up threaded pipe and equipment in non-critical low pressure situations with maximum pressure of no more than 150 PSI. Anzor's BSP Pipe Fitting range is made of 316 Stainless Steel and types of fittings include; BSP Elbows, BSP Tees, BSP Nipples, BSP Reducing Bushes, BSP Reducing Sockets, BSP Hex Caps, BSP Round Caps, BSP Male & Female Elbows, BSP Hose Tails/BSP Hose Nipples and BSP Reducing Nipples.
How Stainless BSP Fittings work:
Female BSP fittings have a parallel thread and male BSP fittings have a tapered thread, when fitted together with a sealant either PTFE tape or some other thread sealing compound a leak proof joint is formed. These sealants also assist in lubricating the joint during assembly and reduce the potential for galling.
BSP Types/BSP Styles:
There are a few different methods of manufacture of Stainless BSP pipe fittings, they can be manufactured from pipe, bar, hollow-bar, castings or forgings, and the method of manufacture has a large bearing on the final cost and performance of the fittings.
Anzor Stainless BSP fittings are manufactured by the lost wax casting method (not sand cast), this means they have a smooth finish, which not only looks good, but is also more corrosion resistant. With sand cast fittings the fittings are more likely to have air pockets and therefore more likely to fail.
Anzor's BSP Sockets are OD machined for a smooth finish and all fittings are 316 grade.
How To Identify BSP Fittings:
BSP fittings are measured by NB (nominal bore size). Nominal bore is the inside diameter of the pipe, not the outside diameter. So for example, if the inside diameter of the pipe is 6mm, the BSP size required is 1/8BSP. Here are the common BSP sizes, with the nominal bore in brackets: 1/8 BSP (NB6mm), ¼ BSP (NB8mm), 3/8 BSP (NB10mm), ½ BSP (NB15mm), ¾ BSP (NB20mm), 1” BSP (NB 25mm), 11/4” BSP (NB 32mm), 11/2” BSP (NB 40),
2” BSP (NB 50), 21/2” BSP (NB65), 3”BSP (NB65), 4”BSP (NB100mm).
Materials used to make BSP Fittings:
Anzor BSP fittings are all grade 316, lost wax investment cast.
Typical Applications for BSP Fittings:
316 Stainless BSP fittings are used in a multitude of applications for transporting fluids in situations requiring maximum corrosion resistance, E.g. Marine industry, chemical industry, fertiliser plants, dairy plants, petroleum industry, food processing plants, Fish processing plants, Brewing plants, pharmaceutical plants, and wine process facilities to name a few.
Advantages of Stainless BSP Fittings:
They can be used in situations where welding or hot work is not possible, they are demountable and are able to be used again. Used to connect valves into lines so maintenance or replacement of valves can take place.
Tips for when Installing Stainless BSP Fittings:
Make sure enough sealant or PTFE tape is used to make a leak proof joint.
Don't grind or cut pipe using carbon based cutting discs, only use inox cut-off discs, so cross contamination doesn't occur.