Vacuum pump oil usage

Vacuum pump oil usage:
(1) The oil-filled window must be clean, it is forbidden to expose to sunlight and outdoor storage, and should be stored in a dark, dry and ventilated place to prevent the mixing of water and dust.
(2) When taking oil or loading oil, the drizzle around the lid must be removed to prevent the sundries from mixing into the oil, causing the pump to wear.
(3) different brands, varieties of vacuum pump oil can not be mixed, old and new oil can not be mixed.
(4) strictly avoid mixing vacuum oil and other lubricants, but also can not be mixed with light oil, or not will affect the vacuum performance.
(5) vacuum pump should try to avoid pumping solvent, water vapor and corrosive gases, etc., must be used to check,
Change oil frequently.
(6) oil change should be used in the body of the old pump oil emissions, the new oil into the slowly turn the pump shaft, clean up the exhaust row pump residue, repeated cleaning several times, such as washed into a new oil.
(7) The pump must be overhauled with solvents or cleaning agents to clean the pump parts, and parts drying.
(8) refueling appliances must be special equipment, should not be presented by other oil or solvent containers; pumping.
(9) When the mineral oil is exchanged with ester oil or other synthetic oil, the pump should be disassembled for thorough cleaning. Including all parts must be immersed in the ester oil to prevent contamination.
(10) If inhalation of chemical gases and solvents, the impact of pump oil pollution after the vacuum, it must be for cleaning oil change treatment.
(11) Oil change period:
a. When the pump oil vacuum fell, can not meet the needs;
b. When the pump oil color becomes dark, brown, they should be changed.

our dished heads are used in a variety of applications and industries such as storage tanks, pressure vessels, road tank, food processing operations, chemical plants ,Nuclear operation, Oil Refining, Architectural feature, power generation.

Due to our forming experience and equipment, we can spin or press the first part of the process of forming your products, It depend on the thickness and material performance,

Our main products are 2:1 SE dished heads, Torispherical heads, Cones,Hemispherical Heads etc

Choosing the right type is the key decision for each customer and one for which our experience team to happy to give advice, simple speaking, the torispherical heads, the less ressure it can withstand, Conversely, the deeper dished heads, for example Elliptical heads, hemispherical, the greater pressure it can take.

Our in house-capability to form dished heads by cold press brings major benefits to our customers and sets us apart from others dished heads manufactures

For carbon steel dished heads, we can forming this dished heads from 76-9000mm in diameter and below 250mm in thickness

The general forming process as the below sketches

Technical Delivery Condition
1,Our material (hot Rolled Unalloyed structural steel, high and low temperature steel, High Alloy steel)
We have no carbon steel plates in our stock and most of plates are from Chinese steel market or mill. Meanwhile As Japanese owed company, We can also source the plates from Japanese ex-mill if end user can`t accept ex-chinese mill.
Basically the delivery time shall be below 20days for dished heads if plates are from steel market. and Max plates width from them is below 2200mm. it means that the seamless dished heads diameter shall be below about 1800mm.
The max width CS plates that Chinese mill can do is below 4700mm,and dished heads can be seamless below 3800mm in diameter.

2,Enquiry/order required information

We can give our clients once they gave us the below information

But if clients tolerance is higher than below Hokkai standards, it shall be provided to Hokkai prior to offer or ordering.

Cold Spinning Dished Head

Cold Spinning Dished Head,Stainless Steel Flanged Dished Head,Cold Spinning Stainless Dished Head,Quality Cold Spinning Dished Head

YIXING HOKKAI HEAD PLATE CO.,LTD , http://www.hokkaidishedend.com