Butterfly Valve Installation and Chamber Construction

How to install a Butterfly Valve and construct Chamber?

Here I share some pictures describing procedures of Butterfly Valve installation and Chamber construction for 1200 mm diameter DI pipe.

1. 100mm thick cc casting with C20 concrete. Then make a layout for re-bar binding.




2. Then start re-bar binding according to drawing. In this case 16mm dia Grade 60 re-bars are used. Must maintain the c/c distance and clear cover. During bending the re-bar development length must have to maintain as per drawing.



3. When re-bar binding finish then the workmanship must be checked by the consultant.






4. After checked by the consultant start form setting. Use required size of block to maintain clear cover. Provide necessary support to prevent form failure during casting. In this case 75mm block are used.
               
                  5. Before casting check the slump value of concrete. Take cube for compression strength test.









6. After curing for 7 days start pipe laying. Joint the Butterfly Calve with the Flange pipe. Check the joint thoroughly if there are any defects. 




















7. After installation of valve start re-bar binding as per drawing, finishing re-bar binding go for form setting work. During form setting keep the clear cover as per requirement, use cc block to maintain covering. Cast the concrete with C25, during casting use vibrator properly to prevent formation of void. After 7 days of curing remove form and continue curing as per requirement.


















8. Set the precast top slab and install manhole cover in the site. Elevate the cover according to road level. Don't set the manhole cover too much higher than road level because it causes problem for traffic.






















Comments

  1. Concorde Valves8 December 2018 at 04:07

    This comment has been removed by the author.

    ReplyDelete
  2. Anonymous19 April 2023 at 05:48


    Providing good information about butterfly valve.. Really Good. Keep it up.
    A butterfly valve is a type of quarter-turn valve that is used to regulate or isolate the flow of fluid in a pipeline.

    ReplyDelete
  3. Anonymous14 May 2024 at 06:30

    Providing good information about butterfly valve

    SKS VALVES is a Brand or a product line that specializes in valves. manufacturer of SKS range Valves.

    https://www.pipelineproductsindia.com/butterfly-valve

    ReplyDelete

Post a Comment

Popular posts from this blog

Air Valve Chamber Construction

Image
How to construct a Air Valve Chamber? Air valve in water pipeline construction is generally placed in higher position to release air maintaining the water flow through pipe smooth. Here I will tell you about the construction method of air valve chamber in case Ductile Iron Pipe. For your better understanding I have shared pictures of construction work with details. 1. Installation of All Socket Tee: First we have install the all socket tee DI pipe and joint a cutting pipe with tee. From center of tee pipe keep at least 3m clear to both sides for the ease of form setting work. After installation check the elevation of pipe and to maintain it use heavy sheet pile or H-beam and wire to hold the tee pipe.   2. After that start form setting around the Tee for concrete casting. The casting dimension is 2.2m x 2.2m x 1.7m. Keep 300mm clear at the bottom of pipe. 3. Concrete casting with C25 concrete.   ...
Read more

COLLAR JOINT

Image
What is Collar Joint in DI Pipeline construction? Collar joint is a type of joint which is generally used in case of DI Pipeline construction. The components of collar joint are; 1. Collar, 2. T-head bolts, 3. Gland 4. Rubber Gasket. Generally when there are different contractors work on a large pipeline construction or during bridge, culvert crossing it is not possible to carry on the work at same time which results in different segment of a same pipeline. To joint those segments we need to use collar. For this joint, it is necessary to maintain same elevation and alignment on both sides of the joint otherwise joint can not be done. To do this we need to expose both side when there is about at least 30m gap. During collar joint there are some checks we must have to perform which are gasket check, joint gap checking which is should be less than 5mm.
Read more