30years factory manufacture gate valve ANSI standard wcb rising stem hard seal cast steel flanged gate valve

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Product Overview

Description



Company Profile








VIP customers from Zambia visited our factory.
VIP customer from South Africa visited our factory.


Participated in the International Water System Exhibition in 2006.
VIP customers from Saudi Arabia visited our factory.


Canton Fair.



Due to different materials, pressures and sizes, the prices of valves cannot be displayed one by one. Please contact customer service to give a correct quotation.




Why Choose Us


Accept customization
1. Material customization
2. Size customization
3. Color customization
4. Pressure customization
5. Logo customization

Please tell our customer service about your needs, and we will give you a suitable quotation as soon as possible according to your needs! thank you!








Our company participates in large-scale urban construction projects in China.
1. Project of China Railway
2. Project of GREENTOWN CHINA HOLDINGS LTD.
3. Project of Hangzhou asian games village
4. Project of Shenzhen Fangda Plaza








Products Description



The opening and closing parts of cast steel gate valve Z41H-25C are gate plates.

The movement direction of the gate plate is perpendicular to the direction of the fluid. The gate valve Z41H-16C/25C can only be fully opened and closed, not regulated and throttled.

Manual gate valves are suitable for a wide range of pressure, temperature and caliber, especially for medium and large caliber pipelines.

Nominal size DN15~DN800, nominal pressure 1.0mpa ~ 25.0mpa, sealing surface adopts asbestos graphite or flexible graphite, working temperature ≤570℃, operation modes are manual, gear transmission, electric, pneumatic, etc., mainly suitable for petroleum, chemical, pharmaceutical, chemical fertilizer, power industry and other working conditions of the pipeline.
















Main features


1. Compact structure, reasonable design, good rigidity of the valve, smooth channel, small flow resistance coefficient, small erosion and erosion of the sealing surface by the medium.

2. The sealing surface adopts stainless steel and hard alloy, high temperature and high pressure resistance optional materials, wide range of application,long service life.

3. Flexible graphite packing plate, reliable sealing, light and flexible operation.

4. Drive mode, motor, electric, pneumatic, gear transmission, structural form; Elastic wedge type single valve, rigid wedge type single valve plate and double gate type.

5. The applicable pressure, temperature range is large, widely used in petroleum, chemical, thermal power plants and other oil,water, steam pipeline for connecting or cutting off the opening and closing device of the pipeline medium.


Relevant implementation standards


Design and manufacture: API600, API6D, GB12234
Flange size: ANSI B16.5, JB/T79, GB9113
Pressure temperature: ANSSI B 16.34
Length: ANSI B16.10, GB12221
Butt welding joint size: ANSI B 16.25
Inspection and test: API598, JB/T9092
Applicable medium: water, steam, oil, acid, alkali medium, etc.


PN
Strength test
Water seal test
Gas seal test
MPa
Lbf/in2
MPa
Lbf/in2
MPa
Lbf/in2
150
3.1
450
2.2
315
0.5~0.7
60~100
300
7.8
1125
5.6
815
600
15.3
2225
11.2
1630
900
23.1
3350
16.8
2440
1500
38.4
5575
28.1
4080
2500
64.6
9367
47.4
6873


Main parts and materials:


Part name
Material
Body
WCB
ZGCr5Mo
CF8
CF8M
ZG1Cr18Ni9Ti
CF3
CF3
Cover
WCB
12CrMoV
ZGCr5Mo
304
CF8
316
CF8M
CF3
CF3
316L
Support
WCB
WCB
CF8
CF8M
CF3
CF3
Disc
WCB
ZGCr5Mo
CF8
CF8M
CF3
CF3
Stem
2Cr13
25Cr2MoV
1Cr18Ni9Ti
Seat ring
25
304
304
304
304
304
Gasket、Ring gasket、Sealing ring
Cladding gasket、304、Reinforced flexible graphite
Packing
Reinforced flexible graphite
Stem Nut
ZCuA110Fe3


Main structure and connection dimensions






FAQ




0.2302 s.