Lug Ceramic Knife Gate Valve

The lug ceramic knife gate valve of TOT Valve adopts hard seal for sealing surface, and the parts in contact with the medium are made of structural ceramic materials with good chemical stability and high hardness.

When you need to open and close pipelines containing high-hardness particles or soft particles but corrosive media, our ceramic knife gate valve is your ideal choice because it has strong wear resistance and corrosion resistance.

Description

The lug ceramic knife gate valve produced by TOT Valve is made of high-quality WCB and stainless steel materials for casting or forging of valve body, gate and other main components, and the valve seat sealing surface is made of advanced structural ceramics such as aluminum oxide (Al₂O₃), zirconium oxide (ZrO₂).

Most customers choose ceramic knife gate valves mainly for slag conveying systems, which do not need to achieve zero leakage level. But if you need a zero leakage valve, we can change the valve seat material on one side from ceramic to polyurethane (PU), which can not only make your pipeline system reach zero leakage level, but also has excellent wear resistance.

Lug Ceramic Knife Gate Valve Features

The sealing surface is made of structural ceramics, which is wear-resistant and has a long service life
The valve seat adopts a single valve seat design to prevent adhesion and dust accumulation
The ceramic knife gate valve has the characteristics of self-cleaning sealing surface
Short end face size, easy installation, easy maintenance, etc.
Widely used: ash, slag, coal slag in steel mills or ash conveying systems in power plants, pulp in the papermaking industry, sewage and slurry in purification plants, especially suitable for heavy medium systems of coal mills.

Main Performance Specification

Nominal Pressure (Mpa)	Body Testing (Mpa)	Working Temperature (℃)	Appropriate Media
1.0, 1.6	10.3	≦425℃	Paper Pulp, Dirty Water, Coal Slurry, Ashes, Compounds of Water and Slag

Materials of Main Pads

Body, Cover	Gate	Stem	Seal Surface
Stainless Steel, Carbon Steel, + TC	Stainless Steel+TC	Stainless Steel	Ceramic

Nominal Diameters and Coupling Sizes

Nominal Pressure 1.0 MPa
DN	L	D	K	d	H	N-M	D0
50	48	160	125	100	310	4–M16	180
65	48	180	145	120	340	4–M16	180
80	48	195	160	135	380	8–M16	220
100	50	215	180	160	450	8–M16	220
125	50	245	210	180	480	8–M16	240
150	70	280	240	200	520	8–M20	240
200	70	335	295	250	580	8–M20	280
250	70	390	350	320	680	12–M20	320
300	70	440	400	370	720	12–M20	320
350	76	500	460	430	820	16–M20	350
400	89	565	515	480	980	16–M22	500
450	114	615	565	532	1150	20–M22	500
600	140	780	725	625	1800	20–M27	700
800	160	1020	950	898	2100	24–M30	700

Nominal Pressure 1.6 MPa
DN	L	D	K	d	H	N-M	D0
50	48	160	125	100	310	4–M16	180
65	48	180	145	120	340	4–M16	180
80	48	195	160	135	380	8–M16	220
100	50	215	180	160	450	8–M16	220
125	50	245	210	180	480	8–M16	240
150	70	280	240	200	520	8–M20	240
200	70	335	295	250	580	12–M20	280
250	70	405	355	320	680	12–M22	320
300	70	460	410	370	720	12–M22	320
350	76	520	470	430	820	16–M22	350
400	89	580	525	480	980	16–M27	500
450	114	640	585	532	1150	20–M27	500
600	140	815	740	625	1800	20–M30	700
800	160	1020	950	898	2100	24–M36	700