Flowstopping Products
Flowstopping is a safe, easy-to-use and cost-effective system for maintenance, repair and modification of distribution networks whilst preserving continuity of supply. The entire procedure is totally gas-free, carried out through an arrangement of valves. ALH supplies the complete package, including drilling machines, plug insertion equipment and flowstopping bags.
Flowstopping Kit for MP Metering Installations – upto 4 Bar
bw-admin2024-04-02T17:19:04+00:00The patented bag design enables an ECV to be changed within 15 minutes. A unique bag that enables operatives to flowstop up to 4 Bar supplies in a live environment without the need to excavate.|
System 1 – Twin Bagtube Kit
bw-admin2024-07-23T10:08:40+00:00Experience quick and cost-effective MP metering solutions with tangible savings!|
System 3 – Large Diameter Bagtube Kit
bw-admin2024-07-23T10:10:53+00:00The System 3 bagtube is designed for flowstopping 14"-36" mains with gas free insertion.|
Flowstopping Bags
bw-admin2022-11-26T18:34:21+00:00ALH Systems offers a full range of low and medium pressure Flowstopping Bags from 2 inch (50mm) to 60 inch (1500mm).|
Bond & Bolt
bw-admin2024-07-23T13:32:08+00:00ALH Systems has designed a Bond & Bolt saddle which provides a cost effective method to gain access into live large diameter gas mains.|
Flowstopping Parts and Accessories
Products and replacement parts complementing the Flowstopping range.
System 3 Valve Assembly
bw-admin2024-07-23T10:11:55+00:00The ALH System 3 valve assembly is designed for 2bar (30psi) working on 10" to 48" live gas mains. Stainless steel gate for quality seal and longevity|
System 3 Drill & Tap (Pneumatic)
bw-admin2024-07-23T10:30:45+00:00The ALH System 3 has a two-stage air motor for high speed drilling and low speed tapping.|
System 3 Drilling Machine (Hydraulic)
bw-admin2024-07-23T11:09:48+00:00ALH System 3 drilling machine with hydraulic motor offers total gas free drilling in live mains|
System 1 Purge Ejector
bw-admin2022-11-28T15:11:03+00:00The ALH System 1 purge ejector is a fast an effective method to purge gas. Suitable for pipes up to 18" diameter.|
GIS E20A Bags – 14″- 48″ Flowstop Bag
bw-admin2024-07-23T13:12:19+00:00GIS/E20A flowstop bags have been specially designed for working in conjunction with the ALH System 3 flowstopping kit.|
Low Pressure GIS/E4 Bags
bw-admin2024-07-23T13:05:11+00:00Full range of bags 3”-12” conforming the GIS/E4 specification. Outer cover is a strong 4oz nylon, flexible back bone, connector available with UNF, BSP or NPT thread.|
Rider hose assembly
bw-admin2022-11-28T17:28:17+00:00Rider hose assembly|
Bypass Head Assembly with Reducer Assembly
bw-admin2022-11-28T17:27:48+00:00Bypass Head Assembly with Reducer Assembly|
System 1 Valve
bw-admin2024-07-23T12:28:32+00:00The ALH System 1 valve has an Aluminium body with a stainless steel gate for quality seal and longevity|
System 1 Drill & Tap
bw-admin2024-07-23T11:33:03+00:00The ALH System 1 drill and tap has been used for over 30 years world-wide|
Non Tap Plugs
bw-admin2022-11-27T11:24:26+00:00A full range of non-tap-plugs from 2”-6” with the advantage of easy and guaranteed extraction due to the unique two flat design feature. Non-tap-plugs provide a simple and effective alternative to screwed plugs.|