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Manual worm gear blind valve



Location:Products >> Metallurgical valve >> Manual worm gear blind valve
Model: F343CX
Nominal diameter: DN300 ~ 2000mm
Nominal pressure: PN0.05 ~ 0.25MPa
Suitable temperature: -20 ℃ ~ 300 ℃
Suitable temperature: 200 ℃ (silicone rubber) 300 ℃ (Viton)
Design criteria: API 600, API6D, ASME B16.34 , GB / T 12234
Structure length: ASME B16.10, API6D, GB / T 12221
Connector Standard: ASME B16.5, ASME B16.47, GB / T 9113, JB / T 79, HG / T 20592
Pressure test: API 598, GB / T 13927, JB / T 9092
Pressure - Temperature class: ASME B16.34 , GB / T 12224
Product details

First, the structural characteristics

The manual worm gear blind valve is mainly composed of the left valve body, the right valve body, the screw rod pair, the flap, the seal ring, the lever, the worm gear and other components. The rigid base body and the support column form a rigid structure body. Rubber ring embedded in the flap, with high temperature, good sealing performance, easy replacement, long service life and so on.


 Second, the main performance parameters

Nominal pressure MPa 0.25 0.15 0.10 0.05
Seal test pressure MPa 0.275 0.165 0.11 0.055
Strength test pressure MPa 0.40 0.225 0.15 0.075
Drive source Compressed air 0.4-0.6MPa; Hydraulic pressure 6.3MPa; 3-phase 380V50HZ
Applicable temperature ℃ Nitrile rubber Silicone Rubber fluororubber
-20-100 -20-200 -20-300
Suitable media Gas and other toxic, harmful, flammable gas
Opening and closing time S ≤60
The main components of the material Valve body, the gate for the carbon steel; screw for the alloy steel; nut manganese copper alloy, ductile iron; expansion device for stainless steel


Third, the main connection size:

DN D D1 b n-φd L
300 440 395 22 12-φ22 500
350 490 445 22 12-φ22 500
400 540 495 22 16-φ22 600
450 595 550 24 16-φ22 600
500 645 600 24 16-φ22 600
600 755 705 24 20-φ26 600
700 860 810 26 24-φ26 800
800 975 920 26 24-φ30 800
900 1075 1020 28 24-φ30 800
1000 1175 1120 30 28-φ30 800
1100 1275 1220 30 28-φ30 800
1200 1375 1320 30 32-φ30 800
1300 1475 1420 32 32-φ30 800
1400 1575 1520 32 36-φ30 850
1500 1675 1620 32 36-φ30 850
1600 1790 1730 32 40-φ30 850
1800 1990 1930 32 44-φ30 1100
2000 2190 2130 32 46-φ30 1100