1

winter construction measures to carry out water pressure test under negative temperature.

consequences: because when water pressure test tube in the frozen rapidly, make the pipe frost crack.

measures: as far as possible before winter applied to carry out water pressure test, and after water pressure test, water shall be clean, very is water inside the valve must be eliminate in the net, otherwise the Industrial Valves light corrosion, or frozen.

when the project is important to carry out water pressure test in the winter, to maintain the room temperature is out, after water pressure test, water shall be clean.

two

pipe system software completed before cleaning not attentively, traffic and customers don't pipeline cleaning requirements. And even in pressure drainage alternative cleaning compressive strength experiment.

consequences: water of piping system software operation, often will continue to lead to reduced or blocked pipeline in cross section.

measures: use within the larger system software design traffic or not less than 3 m/s velocity to carry out the cleaning water. Want to row of inward and outward color, clarity and channel water color, clarity, estimates for the standard.

3

there is no irrigation test for waste water, precipitation, condensate pipe hidden it ourselves.

result: is likely to lead to water penetration, and lead to damage.

measures: in the experimental work should strict according to standard inspection acceptance of work. Underground laying, decorate between ceiling, pipes and other dark bury waste water, precipitation, coagulation water not to ensure no seepage.

4

pressure pipeline system software compressive strength experiment and sealing, only observe the working pressure value and change the water, the water leakage inspection.

consequences: software operation after leaking pipeline system, but the normal application.

measures: pipeline system software according to the regulations of design and construction technology requirements to carry out the experiments, in addition to record work pressure value within the required time or the water level change, is very careful with leaking problem.

5

butterfly valve flange with general valve flange.

consequences: butterfly valve flange with general Industrial Valves flange specifications and sizes, some of the flange diameter is small, and the piston valve disc valve, result in unable to open or forced open and make the Industrial Valves damage.

measures: should be in accordance with the specifications of the butterfly valve flange manufacturing flange.

taboo 6

building structure construction site without embedded perforation and built-in parts, or embedded didn't do up small hole size and logo.

consequences: construction, warm who chipped building structure, and disconnect the longitudinal reinforcement, harm coefficient of building construction.

measures: knowing who warm project engineering drawings, according to the pipeline and seismic bracket installation, construction engineering construction embedded in conjunction with your heart perforation and built-in parts, and the actual reference design rules and construction process requirements.

taboo 7

pipeline welding welding, pipe after professing hi-lo without an axis, professing no interspace, thin-walled tube not shovel weld, welding of the total width and height to construction technology.

consequences: pipe axis hi-lo no immediate harm to electric welding welding quality and sensory quality. Professing no interspace, weld thin wall pipe is not a shovel, total width, height is not in conformity with the provisions of the welding welding welding of no on the rules of the compressive strength.

measures: after welding welding pipe professing, pipe can't be wrong, should be on an axis; Professing to interspace; Thin wall pipe to shovel the weld. Moreover the total width and height should be in accordance with the provisions of the standard welding wire welding.

taboo 8

pipeline laying in permafrost and immediately on digging the unresolved, pipeline piers interval and poor areas, and even choose dry brick yards.

consequences: pipe support is not strong because it is over, destroyed in the backfill compaction process, lead to repair and maintenance.

measures: pipeline laying in permafrost and digging the unresolved, piers interval to be construction technology, the mat wants firm, is very flexible, cannot bear the shear stress. Brick piers to tap water to thin mortar masonry wall, to ensure that the detailed and strong.

Professional resilient seated valve also understand that when you're working with resilient valve product, it's important to understand that quality of ductile iron gate valve always matters.
If you are interested in any of water gate valve, please feel free to contact us.
We should take a step back to review how Mech approach tracking, implementing, and communicating compliance-related changes and attempt to identify areas of improvement in their processes.