DMZ73H carbon steel clamp type concealed stem knife type gate valve

NegotiableUpdate on 04/06

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Nature of the Manufacturer: Producers

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Overview

Product Overview: DMZ73H Manual Hidden Rod Knife Gate Valve is a gas knife gate valve with short structural length, small volume, reliable sealing, and long service life. The composition includes the valve body, gate, valve cover, valve stem, and transmission mechanism. Its characteristic is that the valve body is a flat plate-shaped structure

Product Details

Product Overview:

DMZ73H manual concealed rod knife gate valve is a gas knife gate valve with short structural length, small volume, reliable sealing, and long service life. The composition includes a valve body, a gate plate, a valve cover, a valve stem, and a transmission mechanism. Its characteristics are that the valve body is a flat plate-like structure, connected to the pipeline by clamping. The gate plate adopts a single gate plate, with one side sealed with the valve body seat and the back side in wedge-shaped contact with the other side of the valve body. The sealing surface is opposite to the direction of the medium flow. The wedge-shaped contact structure is equipped with wedge-shaped compression blocks on the back of the sealing surface, and an adjusting top wire is provided at the corresponding compression block on the other side of the valve body. This utility model has the advantages of short length and light weight of the valve body structure, the sealing surface of the valve seat can be protected from medium erosion, the sealing surface is uniformly compressed, tightly adhered, dust particles, tar, etc. on the sealing surface of the valve seat can be scraped off during the closing process, and the discharge is convenient. Suitable for use in gas pipelines containing dust or tar.

Product Features:

1. Ultra short structural length saves materials and greatly reduces the overall weight of the pipeline system.

2. Occupying a small effective space, it can effectively support the strength of the pipeline and reduce the possibility of pipeline vibration.

3. The gate is made of austenitic stainless steel, which greatly improves its corrosion resistance and can effectively prevent sealing leakage caused by gate corrosion.

4. The upper sealing filler adopts flexible PTFE, which is reliable in sealing and easy to operate.

5. The gate has the function of a knife, which can effectively block various impurities in the medium.

Performance parameters:

Nominal pressure (MPa)	Shell test (MPa)	Sealing test (MPa)	Operating Temperature	Applicable Medium
1.0 1.6	1.5 2.4	1.1 1.8	≤100℃ ≤100℃	Pulp, wastewater, coal slurry, ash, slag water mixture

Component materials:

Body and lid	ram	valve stem	sealing surface
Stainless steel, carbon steel, gray cast iron	Carbon steel, stainless steel	stainless steel	Rubber, PTFE, stainless steel, hard alloy

Connection size:

Nominal pressure (MPa)	Nominal diameter (mm)	L	D	D1	D2	H	N-M	D0
1.0	150	70	280	240	210	475	8-M20	280
	200	80	335	295	265	540	8-M20	360
	250	85	390	350	320	630	12-M20	360
	300	100	440	400	368	480	12-M20	400
	350	100	500	460	428	885	16-M20	400
	400	110	565	515	782	990	16-M22	400
	450	120	615	565	532	1100	20-M22	530
	500	130	670	620	585	1200	20-M22	530
	600	140	780	725	685	1450	20-M27	600
	700	165	895	840	800	1700	24-M27	600
	800	190	1010	950	905	2000	24-M30	680
	900	200	1110	1050	1005	2300	28-M30	680