When vacuum is obtained by injecting the resin used to make GRP parts for ships, all ships have an outer shell and inner shell made of glass fiber reinforced plastic, and the resin used is mainly vinyl ester or epoxy resin. In the resin injection process, the H series single stage rotary piston v...

Introduction Dry screw vacuum pump means that the pump can start pumping under atmospheric pressure and can directly discharge the pumped gas to the atmosphere. There is no oil or other working medium in the pump cavity, and the ultimate pressure of the pump is the same as that of an oil-sealed v...

As a kind of rectangular building material used for building walls, bricks are closely related to everyone’s life. The size of Chinese standard clay bricks is 240×115×53mm. In the 1960s, China’s vacuum brick machines imported from abroad were equipped with water ring type vacuum pumps. Due...

Diffusion pump is one of the main tools to obtain high vacuum. They are easy to operate, have no moving parts, are relatively cheap, and have little and easy maintenance. But even so, there are some points to pay attention to when using diffusion pump. Here are 12 things that vacuum furnace user...

Gives the minimum requirements for liquid ring vacuum pump and compressor systems for service in the petroleum, chemical, and gas industries. Includes both vacuum pump and compressor design and system design. Substitute standard number : API 681 Ed. 1 (1996/R2002) Standard catalogue : Section 1 &...

Problem a: Differences between frequency conversion motor and ordinary motor: One, frequency conversion motor and common motor on the whole there are three main differences 1. Different heat dissipation system; Common fan cooling fan and fan movement with the same line, and frequency conversion m...

Why do Roots blowers need to be used in sewage ponds? How does Roots blowers play in sewage treatment? As we all know, Roots blowers are the core equipment in the sewage treatment process, which directly determines its effect and energy consumption. The Roots blower is mainly used in the biologic...

Configured-to-Order Engineered Separator Package for Paper Mills Developed as part of EVP’s closed cycle system and heat recovery program for the Paper Industry, the GLS series of pre-separator packages are efficient, reliable, and simple in design and operation. Self-priming filtrate pump ...

In this application, the moisture from the filtrate receiver of a vacuum filter is collected and fed back into the system. If a system upset occurs, such as the failure of the filtrate pump, slugs of liquid can carry over into the vacuum system. Soft solids from the filter can also enter the vacu...

Vacuum pump maintenance directly affect the stability of the pump, and even affect the service life of the vacuum pump, maintenance methods are many, and we share some scientific vacuum pump winter maintenance methods. 1. Do not use it in too cold environment, and it can be properly preheated bef...