Posted on Fri, 18 May 2018 08:39:03 +0000
Flange connections are widely used in the connection of vacuum units, such as vacuum pumps and pipes, valves, cold traps. Commonly, there are three types of them: CF, KF and ISO. What are differences between them? 1.CF flange: CF is the abbreviation for Conflat Flange. It is a static metal seal. ...
Read MorePosted on Fri, 18 May 2018 08:37:36 +0000
Shanghai EVP vacuum produce kinds of liquid ring vacuum pumps. In the following we classify liquid ring vacuum pumps. 1, single-stage single-acting liquid ring vacuum pump: Single-stage single-acting liquid ring vacuum pump, means that only a single-stage impeller, single action refers per rotati...
Read MorePosted on Fri, 18 May 2018 08:36:24 +0000
EVP 2BV VS SIHI LEM/LELC 2BV structure and characteristic 1.Compared with SIHI LEMA, we have more big model 2BV5-161 and 2BV6-161, but LEM not available. 2. more material version to suit different working environment; A.Cast iron material, stainless steel 304 impeller B.All stainless steel 304 m...
Read MorePosted on Fri, 18 May 2018 08:34:44 +0000
DLV double stage water ring pump: The new type dual stage water ring pump can complete replace the SIHI LPH series pump from the pump performance, power and outline dimension. Even though our DLV pump parts can replace the SIHI pump parts. Such as the impeller as follow: Our pump impeller have n...
Read MorePosted on Fri, 18 May 2018 08:31:39 +0000
Dry screw vacuum pump is mainly use a pair of screws, which characteristics is calibrating or balancing the dynamic balance through its two screws, supported by the bearing, installed in the pump housing, there is a certain gap between each screw to avoid fricting between each other during workin...
Read MorePosted on Fri, 18 May 2018 08:30:20 +0000
Part 1 : Working principle of vacuum drum filter as shown in the figure: In each rotation of the drum, it through four functional zones. Such as the filter cake forming zone, sucking dry zone, back blowing zone and the rest zone. The resting zone mainly function is buffer between positive pressu...
Read MorePosted on Fri, 18 May 2018 08:27:47 +0000
Vacuum distillation in metallurgy is mainly reflected in the vacuum smelting of non-ferrous metal materials, with a short process, less consumption, higher metal recovery, and many advantages, like non-waste (waste water, waste residue, waste gas), no pollution to the environment, little processi...
Read MorePosted on Fri, 18 May 2018 08:20:08 +0000
Vacuum distillation in metallurgy is mainly reflected in the vacuum smelting of non-ferrous metal materials, with a short process, less consumption, higher metal recovery, and many advantages, like non-waste (waste water, waste residue, waste gas), no pollution to the environment, little processi...
Read MorePosted on Fri, 18 May 2018 08:19:04 +0000
The relationship between roots pumpcapacity and the pumping speed of the former pump depends on the volume efficiency and the pressure difference of the roots pump license. If the volume efficiency is low, the effective pumping speed of the roots pump system will decrease obviously. If the pressu...
Read MorePosted on Fri, 18 May 2018 08:18:33 +0000
Mould material is the material and technical foundation of mould manufacturing industry. The mould steel is the traditional mold material, its variety, specification and quality have a decisive effect on the performance, service life and manufacturing cycle of the mould. The die steel plate numbe...
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