horizontal-slide
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

MISSION Non-Return Valves

Brochure

Non return valves or backwater valves are used within sewerage and drainage systems to eliminate the risk of flood damage by the backflow of sewage into properties through low level entries such as low level drain gullies, toilets and washing machine outlets.

The Environment Agency in their publication on damage limitation for properties at risk from flooding and the Government guidance note “Preparing for Floods” both recommend the installation of non-return valves (anti-flooding devices) on all drains and sewers.

The Building Regulations 2000, Approved Document H, recommends the installation of double flap non-return valves on drains from basements in low risk areas and on all drains in areas with a high risk of flooding or sewer surcharge.

These valves are also used in commercial and industrial applications where non-pressure flow control is required (e.g. fish farming).

MISSION RANGE (DN100 to DN300)

Body & Flap:     PVCu

Seal:                EPDM to BS EN 681-1

 

 

MISSION COMMERCIAL RANGE (DN250 to DN500)

Body & Flap:     Glass reinforced plastic using a isophtalic polyester resin with surface isophtalic gel coat

Hinge:              Self lubricating Ertacetal plastic

Seal:                EPDM to BS EN 681-1

Fittings:            AISI 316 1.4401 austenitic stainless steel to BS EN 10088-2