Products > Metallurgical valve > Manual worm gear blind 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
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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 MPa0.250.150.100.05
Seal test pressure MPa0.2750.1650.110.055
Strength test pressure MPa0.400.2250.150.075
Drive sourceCompressed air 0.4-0.6MPa; Hydraulic pressure 6.3MPa; 3-phase 380V50HZ
Applicable temperature ℃Nitrile rubberSilicone Rubberfluororubber
-20-100-20-200-20-300
Suitable mediaGas and other toxic, harmful, flammable gas
Opening and closing time S≤60
The main components of the materialValve 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:

DNDD1bn-φdL
3004403952212-φ22500
3504904452212-φ22500
4005404952216-φ22600
4505955502416-φ22600
5006456002416-φ22600
6007557052420-φ26600
7008608102624-φ26800
8009759202624-φ30800
900107510202824-φ30800
1000117511203028-φ30800
1100127512203028-φ30800
1200137513203032-φ30800
1300147514203232-φ30800
1400157515203236-φ30850
1500167516203236-φ30850
1600179017303240-φ30850
1800199019303244-φ301100
2000219021303246-φ301100