Gear pump stop running maintenance and seal failure

Gear pump gear pumps in all belong to the more excellent quality and have a special range of applications. However, stainless steel pumps also have some unexpected malfunctions at work, such as downtime. We need to analyze the main reasons for downtime, so as to avoid unnecessary damage to the machine in the future. Downtime is mainly caused by the failure of the mechanical seal. Mainly due to the failure of the performance of the leak, the leakage of the following reasons: ① static and dynamic ring seal surface leakage, the main reasons are: flatness of the end surface, roughness does not meet the requirements, or scratch the surface; particulate matter between the ends, resulting in two Face can not be the same run; installation is not in place, the way is not correct. ② compensation ring seal leakage, mainly due to: gland deformation, uneven pre-tightening; installation is not correct; seal quality does not meet the standards; seal selection wrong. Gear pump stop running after the request: ① transport easy to crystallize, easy to coagulate, easy precipitation and other media pump, stop the pump to prevent clogging, and timely flush with water or other media pumps and pipes. ② high-temperature pump should be stopped according to the provisions of technical documents, after parking should be partial 20 -30 30min half a turn until the pump temperature dropped to 50 ℃ so far. ③ cryogenic pump parking, when no special requirements, the pump should always be filled with liquid; suction valve and the discharge valve should be kept normally open state; the use of double-end mechanical seal of the cryogenic pump, liquid level controller and seal the liquid seal chamber The pump grouting pressure should be maintained. ④ Centrifugal pump should stop running after the pump population valve, to be cooled and then turn off the auxiliary system valves. Exhaust the liquid stored in the pump to prevent corrosion and cracking. Editor: Buddhist niche

Swing Door

1.with 3000 square meter factory about 35 workshop workers and 25 office workers.

2.More than 20 sets of advanced machines with more than ten years domestic trade experience and international trade experience.

3.Manufacture and supply good quality automatic doors

4.With ISO 9001 Certification and many others certifications

5. Excellent DC brushless motor , high wear-resistant qualities wheels and reasonable structure design makes it more stable, quiet, longer life

6.Our Service system is perfect

Controller Dimensions : 85×124×600mm

Weight :12 kg

Maximun leaf weight :150 kg

Open range : 70°~115°

Closing speed : 10~43 cm/s

Door hold time :0.5~10 seconds

Main Power :AC 220V~250V,50~60 Hz

Maximum current :1A

Maximun motor power:55W

Wait Power :14W

Fuse :Minimum 3.5 ASlow

Operating Temperature : -30℃ ~+50℃

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