Pump valve leakage reasons after the maintenance requirements

Pump valve leak reasons after the maintenance requirements:

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.

First, the performance of the pump valve failures are mostly leaks, leaks for the following reasons:

① static and dynamic ring seal surface leakage, mainly due to: face flatness, roughness does not meet the requirements, or scratches the surface; between the end of the particulate matter, resulting in both ends 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.

Second, 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

More Search Keywords: Pumps , Valves

Wrapping Machine works by using different angles veneer roller coated on the workpiece to suppress, in the process, the process pressure rate and pressure can be adjusted according to different coating material.
A full set of manufacturing processes can be a full automatic assembly line, the normal working can be done without human intervention, it just need to feed material from adhesive coating to expect the sending until the product be finished which reduce labor costs and ensure the passing rate of processed products and processing efficiency.
Max film covering width:300mm heating power: 12.5kw
Max process thickness: 90mm overall dimensions:6000*600*1800mm
Min process length: 600mm weight:2500kgs
Feeding speed:1-60m/min max diameter of rolling cover material:400mm
Feeding motor power:1.5kw max width of cover film 600/800/1200mm
We have the following features:
1. Good quality quality is our culture
2. Fast service 24 hours answering service Vip service for you
3. Good reputation influence company
4. Quick after-sale service
5. Professional in this industry for 7 years
6. with us your money is safe,your business is safe.
7. We think our products will give you an edge over your competitors.
advantages of XINGBANG machine
NO items
1 the panel are made by CNC Gantry Milling,dimensions tolerance is under 0.05mm.
2 The shaft had a scale,which can control the size of workpiece.
3 All tubes and the guide bars are chromed with 0.03-0.05mm.
4 we adopt Magnetic brake in our control system,which is about RMB1000.while others use air brake or belt brake.
5 we use Aviation connector,which can be used for decades.
6 we use Bidirectional sophisticated glue knives.which made by Japanese material.
7 high-precision rolling guide are imported from taiwan.
8 excellent silicon gel wheels
9 all french Schneider brand electrical control system
10 each machine and compontes to be tested twice before shipment.(we have QC department)
11 our production aea about 10000 square meters.
12 we sell about 200sets woodworking machines each month.
13 our hot adhensive machines are NO 1 sales in domestic market,Quality stability has been recognized by the majority of our customers.
14 we have 10 Senior professional after-sale-service wrapping engineers all over the country,
15 PUR machine has the features of High efficiency, high speed, about 1-60m/miunute, suitable for mass production.
16 flexile frames,can save much space and save time.improve efficiency.

Door Decorative Machine

Alumium Wrapping Machine, Decorating Machine, Woodworking Machinery

Shandong Qufu Xingbang Heavy Equipment Co., Ltd. , http://www.chinaxingbangheavyindustry.com