CN1808 Internal and External Thread Washer Seal Pneumatic Ball Valve
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  • CN1808 Internal and External Thread Washer Seal Pneumatic Ball Valve

I. Core Structural Features

  1. Connection and Sealing :Left end external thread, right end internal thread, thread conforms to 《GB/T 7306 55° sealing pipe thread》; built-in nitrile rubber sealing gasket (conforms to 《GB/T 5574 Industrial vulcanized rubber sheet》), forming a double seal with the valve core soft seal (conforms to 《GB/T 12237 Industrial valves metal sealed ball valves》) Double Seal ,Reinforces gas medium airtightness.
  2. Operating Mechanism :Red engineering plastic handle (conforms to 《GB/T 1040 Determination of tensile properties of plastics》), 90° rotation opening and closing, handle and stem are non-detachable, small operating torque and intuitive opening and closing status (handle parallel/perpendicular to flow direction corresponds to opening and closing).
  3. Valve Body Material :The main body uses brass material (conforms to 《GB/T 5231 Chemical composition and product shapes of processed copper and copper alloys》), suitable for gas, compressed air and other non-corrosive gas environments.

 

II. Main Technical Parameters (National Standard)

Parameter Name Value / Range Unit National Standard Basis
Nominal Pressure PN16 MPa GB/T 12224《Steel valves General requirements》
Applicable Medium Natural gas, liquefied gas, compressed air and other non-corrosive gases - - (Gas medium adaptability)
Medium Temperature -20~120℃ GB/T 12225《General valves Copper alloy castings technical conditions》
Thread Standard G (55° sealing pipe thread) - GB/T 7306《55° sealing pipe thread》
Sealing Test Pressure 1.1×PN MPa GB/T 13927《Industrial valves Pressure test》
Shell Test Pressure 1.5×PN MPa GB/T 13927
Applicable Nominal Diameter DN10~DN25 mm -

 

III. Main Part Materials (National Standard)

Part Name Material Implementation Standard
Valve Body Brass H59 GB/T 5231《Chemical composition and product shapes of processed copper and copper alloys》
Valve Core Brass H62 GB/T 5231
Sealing Gasket Nitrile rubber NBR GB/T 5574《Industrial vulcanized rubber sheet》
Operating Handle Reinforced nylon (PA6+GF) GB/T 1040《Determination of tensile properties of plastics》
Valve Stem Brass H62 GB/T 5231

 

IV. Dimensions and Specifications (National Standard)

Specifications and Models Nominal Diameter DN (mm) Thread Specification (G) Structural Length L (mm) National Standard Basis
CN1808-10 10 G1/4" 60 GB/T 12221《Metal valves Structural length》
CN1808-15 15 G1/2" 70 GB/T 12221
CN1808-20 20 G3/4" 80 GB/T 12221
CN1808-25 25 G1" 90 GB/T 12221

 

V. Typical Application Scenarios

  1. Domestic Gas System :Natural gas, liquefied gas household branch pipes, gas stove/water heater front-end pipeline control (must comply with local gas safety regulations);
  2. Industrial Gas Transportation :Opening and closing of compressed air, nitrogen, argon and other inert gas pipelines (suitable for pneumatic equipment, gas station houses);
  3. Pneumatic Equipment Matching :Gas source switch for pneumatic tools, cylinders and other pneumatic components, facilitating equipment maintenance and gas volume adjustment;
  4. Laboratory Gas Path :Precise control of gaseous media for analytical instruments and experimental devices (suitable for small and medium-sized precision scenarios);
  5. Small Gas Appliances :Gas supply pipeline for gas boilers and burners (gasket seal enhances airtightness).

Keyword

CN1808 Internal and External Thread Washer Seal Pneumatic Ball Valve
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  • CN1808 Internal and External Thread Washer Seal Pneumatic Ball Valve

CN1808 Internal and External Thread Washer Seal Pneumatic Ball Valve

The CN1808 internal and external thread gasket sealed pneumatic ball valve uses a brass valve body (compliant with GB/T 5231), integrating internal and external thread (compatible with GB/T 7306) and nitrile rubber gasket (compliant with GB/T 5574) double sealing, meeting the GB/T 12237 soft sealing requirements. The red handle is convenient to operate and is suitable for non-corrosive gases such as fuel gas and industrial gases. It is specially designed for small and medium-sized gas pipelines, providing a professional gas control solution with high gas tightness and convenient operation.

Professional valve manufacturing 



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