Water Sealed Shut Off Valve for Coke Oven Coal Chemical Plant China Manufacturers

Water Seal Shut-Off Valve

Water sealed globe valve is a special globe valve that forms a liquid seal barrier by injecting water. Its valve cover or stem is equipped with a water seal chamber, which injects water or sealing liquid to enhance sealing performance, effectively isolating the leakage of high-temperature steam (such as ≤ 600 ℃), toxic gases or strong corrosive media. It is suitable for harsh working conditions such as thermal power generation and chemical industry that require extremely high sealing requirements.

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Standardization and universality
Maintain convenience
Outstanding environmental protection and safety
Optimize sealing performance and lifespan
Compact and flexible structure
High corrosion resistance design
Double water seal structure

Standardization and universality

Standardization and universality
01
Manufactured according to national and industry standards, suitable for different pipe materials and working conditions, with both reliability and global applicability.

Maintain convenience

Maintain convenience
01
Packing replacement can be completed without stopping the machine, reducing system downtime and lowering maintenance costs.

Outstanding environmental protection and safety

Outstanding environmental protection and safety
01
The water seal structure avoids medium leakage and reduces environmental pollution, especially suitable for high-risk scenarios such as thermal power generation and chemical industry, and meets environmental and industrial safety standards.

Optimize sealing performance and lifespan

Optimize sealing performance and lifespan
01
The sealing pair adopts a combination of hard and soft seals to reduce friction loss, extend the service life of the sealing surface, and the detachable valve seat is convenient for cleaning coking and particulate matter.

Compact and flexible structure

Compact and flexible structure
01
The design follows the GB/T12235 standard, with a lightweight and compact structure, flexible operation, and easy maintenance. It supports multiple connection methods such as flanges or welding.

High corrosion resistance design

High corrosion resistance design
01
The valve stem has undergone quenching and surface nitriding treatment, making it corrosion-resistant and scratch resistant; The valve body is made of corrosion-resistant materials such as stainless steel or copper, suitable for strong corrosive media such as acid, alkali, and salt.

Double water seal structure

Double water seal structure
01
By injecting water to form a liquid seal barrier, 0.6-1.6MPa water or sealing liquid is connected to the packing box, and stainless steel thread reverse sealing is used to effectively isolate the leakage of high-temperature steam (≤ 600 ℃), toxic gases, or corrosive media, achieving system isolation from the atmosphere.

Main Component Materials

valve body	valve cover	valve disc	valve seat	valve stem	filler	Applicable Medium	Applicable temperature (≤ ℃)
WCB		25+D507M0	25+D577	2Crl3	flexible graphite	Water, oil, steam	425℃

Performance Specifications & Dimensions

Nominal Pressure PN

0.6/1.0/1.6/2.5/4.0/6.4/10.0/16.0
Shell F

Px1.5
Sealing Pressure

Px1.1
Medium

Water, steam, oil
Temperature (℃)

≤425℃

Nominal Diameter DN(mm)	PN2.5MPa								weight (kg)
Nominal Diameter DN(mm)	L	D	D1	D2	b	Z-φd	H	D0	weight (kg)
10	130	90	90	40	16	4-14	272	120	6
15	130	95	65	45	16	4-14	272	120	6
20	150	105	75	55	16	4-14	280	120	6
25	160	115	85	65	16	4-14	332	160	10
32	190	135	100	78	18	4-18	342	160	11
40	200	145	110	85	18	4-18	395	200	17
50	230	160	125	100	20	4-18	431	240	24
65	290	180	145	120	22	8-18	457	280	33
80	310	195	160	135	22	8-18	505	320	47
100	350	230	190	160	24	8-23	549	360	62
125	400	270	220	188	28	8-25	621	400	96
150	480	300	250	218	30	8-25	703	400	128
200	600	360	310	278	34	12-25	828	400	168

Note: The above data is for reference only. For details, please consult the company's sales department.

Valve Application

Oil & Gas Transportation

Oil and gas transportation involves multiple modes such as pipelines and ships, and is the core link of the energy supply chain.
Chemical Raw Material Control

The control of chemical raw materials covers the entire process of mining, storage, and production, ensuring safety and process stability.
High Temperature SteamPipeline in Power System

High temperature steam pipelines are the core of energy transmission in power systems, supporting the efficient operation of thermal and nuclear power plants.
Other Industries

Valves control fluids in multiple industries such as new energy and electronics, ensuring safe and efficient production.