product manual:

Hand - operated shank - shaped gate valve DMZ73H

New Product Overview

This knife gate valve is a new type of gate valve, small size, light weight, light materials, sewage, coal slurry, syrup, mud, air, slag water mixture, water, paper, mining and other industries ideal product.

Knife gate valve using metal-to-metal hard seal, or the use of metal-to-rubber soft seal. In the opening and closing process, the gate and sealing surface with a special design, less friction, durable.

The knife seal on the top of the seal seal broke through the traditional form of the use of the cover structure, making the seal from a large area of the rectangular seal into a small area of the circumferential seal, sealing performance is greatly enhanced. The basis of the circumference of the seal, but also uses the current international advanced floating seal into the area of the circumferential seal, sealing performance greatly improved. On the basis of the circumference seal, it adopts the international advanced floating seal structure (see Fig. 1), which makes the upper seal reach the same life with the pipeline, thus improving the service life of the valve as a whole.

Such gate valve in the hand wheel at the top of the installation of the envelope device, you can make the valve moving parts all in a closed state, the gate and the stem of the screw drive will not be dry because of oil jam.

Particularly suitable for dust and dry harsh environment for long-term normal work (see Figure II). Note: According to the user's environment and requirements to design and production, suitable for the user's installation and use.

Design and manufacture:JB/T8691-1998
structural length: GB/T15188.2-94
Flange connection: GB/T9113.1-2000 JB/T79-94
testing and acceptance: GB/T13927-92

Key performance indicators
 

Profile and connection dimension                                 Unit:mm