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TWISTEE SADDLE DN150

Connecting any DN150 lateral (Supersleve, Twinwall, PVC) to existing clay and concrete sewers from DN300 and above.

» read more/DOWNLOAD or CALL 0114 257 0040
CONTRACTORS GUIDE 2018

Our new 2018 contractor guides are available.

» DOWNLOAD here
TWISTEE SADDLE DN150

Connecting any DN150 lateral (Supersleve, Twinwall, PVC) to existing clay and concrete sewers from DN300 and above.

» read more/DOWNLOAD or CALL 0114 257 0040
CONTRACTORS GUIDE 2018

Our new 2018 contractor guides are available.

» DOWNLOAD here
TWISTEE SADDLE DN150

Connecting any DN150 lateral (Supersleve, Twinwall, PVC) to existing clay and concrete sewers from DN300 and above.

» read more/DOWNLOAD or CALL 0114 257 0040
CONTRACTORS GUIDE 2018

Our new 2018 contractor guides are available.

» DOWNLOAD here

Stainless Steel Clamping Bands, Shear Rings and components

Stainless steel refers to a range of iron based alloys which rely on their chromium content for resistance to corrosion. Research in a number of countries worldwide has shown that in normal soils austenitic stainless steel with a 17% chromium and 8% nickel content gives satisfactory performance with a design life in excess of 100 years. Whereas in poorly drained gravels, industrial or colliery spoil and in cases where the ground or groundwater contains chlorides (exceeding 1000 ppm) pitting of the steel can occur. In these circumstances then the application of a protective wrapping such as “Densotape” will give adequate protection. Alternatively, in these circumstances an austenitic stainless steel containing molybdenum (minimum 2%) will give better corrosion resistance without the need for additional protection.

Standard, Drain, Adaptor and Extra wide Couplings


Mission therefore supplies couplings in two grades of austenitic stainless steel to suit either normal conditions or conditions when additional corrosion resistance is required.


For use in normal conditions Mission’s standard products use components manufactured from grade 1.4301 (304) austenitic stainless steel to BS EN10088-2:1995. This grade of stainless steel meets the requirements of EN295:Part4:1995.


For those conditions requiring higher corrosion resistance then components manufactured from grade 1.4401 (316) austenitic stainless steel to BS EN10088-2:1995 is available to special order. This grade contains 2% molybdenum and is especially suitable for marine environments.


Plumbing fittings, End caps and Flexible saddles


The components on these items are manufactured from a marine grade 300 series austenitic stainless steel.