Gear pump leakage reasons

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 conveying easy crystallization, easy to coagulate, easy precipitation and other media pump, stop the pump should be blocked, 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.

Led Saltwater Aquarium Lighting

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Aquarium Led lighting

2 Manual dimmers for White, Blue change the intensity of lighting

Simulates the sunset and sunrise

55pcs 3w leds offer lighting to tank effectively

Adjustable kits, detachable cords

Key Features

1.The lifespan is over 50000 hours,low maintenance costs.

2.Energy conservation,saving over 80% energy than the traditional HPS.

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4.Build-in cooling system,could solve the heat dissipation excellently.

5.Built-in power supply, CE approved, No setup required, just simpler and safer plugs directly into AC85V-264V, no reflector & ballast needed.

Package Include

1 X LED Aquarium Light

1 X Free Hanging Kit

1X Free Power Cord

All the lamps have passed strict quality examination and are packed carefully before shipping.In order that our customers get high quality lamps,we attach importance to every details.

Application

1. coral reef lighting,fish tank lighting,coral reef tank lighting

2. aquarium lighting,aquarium art,aquarium shop,aquarim centre

3. fish bowl lighting,fish lighting,freshwater lighting,saltwater lighting

We have over 6 years` experience in designing and manufacturing led aquarium lights,providing lamps of solid quality and getting high reputation from our clients from over 30 countries. All products are based on high-standard LEDs and comply with authoritative certification FCC, CE and ROHS..Our Saltwater Aquarium Lighting have the professional spectrums and simulate the changes of sunlight in the whole day and the lunar cycle,creating the best light environment for reef, coral, Fish, etc.

Product Images

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