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Flanged gate valve

Flanged gate valve

Valve use :
High and medium pressure flanged gate valves are suitable for pipelines of various systems in petroleum, chemical, hydraulic and thermal power stations with a nominal pressure of PN1.6 ~ 16.0MPa and operating temperature ≤-29 ℃ ~ 550 ℃. . Applicable medium: water, oil, steam, acid, alkali, ammonia, urea, sulfur-containing natural gas, etc. The operation modes are: manual, gear transmission, electric, pneumatic, etc.
Structure and characteristics :
1. Exquisite selection of materials, in accordance with relevant standards at home and abroad, high overall quality of materials.
2. Meet the requirements of domestic and foreign advanced standards, reliable sealing, excellent performance and beautiful appearance.
3. The sealing pairing is advanced and reasonable. The sealing surfaces of the gate and valve seat are made of Stellite cobalt-based hard alloy with different hardness. 2. Good anti-scratch performance and long life.
4. The valve stem undergoes quenching and tempering and surface nitriding treatment, and has good corrosion resistance, abrasion resistance and wear resistance.
5. It adopts wedge-type elastic brake plate structure. Thrust bearings are set in the middle and large calibers, and the friction force is small. It is also equipped with an impact hand wheel, which can be opened and closed easily. Widely used in petrochemical, thermal power plants and other oil products, water vapor pipeline as the opening or closing device to connect or cut off the medium in the pipeline.
6. Various piping flange standards and flange sealing surfaces can be used to meet various engineering needs and user requirements.

Standards and specifications :
Design and manufacture: According to the requirements of GB / T12234-89 Structural length: According to the requirements of GB / T12221-89 Flange size: According to the provisions of JB79GB / T9112-9131 Inspection and test: An JB / T9092-99GB / T13927-92 Required transmission method: manual, electric, gear

Performance and specifications:

model
Type
Nominal pressure
Nominal
Pressure
test pressure
Test Pressure
Working temperature (℃)
Temperature
Suitable medium
Medium
Strength (water)
(Mpa)
Sealed (water)
Air (Mpa)
Low pressure seal
Air (Mpa)
Z41H-16C
1.6
2.4
1.8
0.6
≤425
steam,
Oil products
Z41H-25C
2.5
3.8
2.8
0.6
≤425
Z41H-40C
4.0
6.0
4.4
0.6
≤425
Z41H-64C
6.4
9.6
7.0
0.6
≤425

Material of main parts:
Part Name
Body Material Code
Part Name
Body / bonnet
WCB
ZGCr5Mo
ZG1Cr18Ni9Ti / CF8
ZG1Cr18Ni12Mo2Ti / CF8M
Body / Bonnet
gate
WCB
ZGCr5Mo
ZG1Cr18Ni9Ti / CF8
ZG1Cr18Ni12Mo2Ti / CF8M
Wedge
Valve stem
Cr13
25Cr2MoV
1Cr18Ni9Ti
1Cr18Ni12Mo2Ti
Stem
filler
Flexible Graphite
PTFE / PTFE
Packing
Gasket
18-8 Flexible Graphite
Gasket
bolt
35 / 35CrMo
25CrMoV
1Cr18Ni9
1Cr18Ni9
Bolt
proper temperature
-29-425 ℃
-29-450 ℃
-40-200 ℃
-40-200 ℃
Suitable Temp.
Applicable medium
Water, oil, steam
Water, Oil, Steam
Steam and oil
Steam, Oil
Nitric acid
Nitrc Acid
Acetic acid
Acetic Acid
Suitable Medium

Bevel gear stainless steel gate valve medium pressure national standard cast steel gate valve manual flange gate valve national standard steel gate valve flange gate valve

Links: Pneumatic globe valve

Address: North Puxi Industrial Zone, Yongjia District Telephone: 0577-67385088 67385087 67385086 67385085 Fax: 0577-67385089 Mobile: 18058386238 Mr. Xu
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