SEK9013 live connection ball valve
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  • SEK9013 live connection ball valve

I. Core Structural Features

  1. Connection Structure : Uses live connection + external thread Combination connection (left end external thread with live connection nut, right end with internal thread interface). The live connection structure meets the adaptation requirements of GB/T 12465 Pipeline Loose Coupling Compensation Joint, can compensate for pipeline installation errors, and is convenient for later disassembly and maintenance;
  2. Sealing Form : The valve core and valve seat use Nitrile rubber soft seal , which meets the soft sealing performance requirements of GB/T 12237 Industrial Valves Metal Sealed Ball Valves, ensuring low leakage;
  3. Operating Mechanism : Configured with butterfly engineering plastic handle The handle and stem feature an anti-脱落 design, requiring minimal operating torque. The open/close status is clearly indicated (handle parallel/perpendicular to flow direction).
  4. Valve Body Protection : Brass substrate with nickel plating, corrosion resistance meets GB/T 12225 General Valves Copper Alloy Castings Technical Conditions, suitable for humid or weakly corrosive 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 Water, oil, non-corrosive fluid - - (General fluid adaptability)
Medium Temperature ≤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 Thread Specifications G1/2"~G2" - GB/T 7306

 

III. Main Part Materials (National Standard)

Part Name Material Implementation Standard
Valve Body Brass H59 (Nickel-plated) GB/T 5231 Processed Copper and Copper Alloy Chemical Composition and Product Shapes
Valve Core Brass H62 GB/T 5231
Sealing Element Nitrile Rubber NBR GB/T 5574 Industrial Vulcanized Rubber Sheets
Handle Reinforced Nylon (PA6+GF) GB/T 1040 Plastics Determination of Tensile Properties
Live Connection Nut Brass H59 GB/T 5231
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) Live Connection Nut Outer Diameter (mm) National Standard Basis
SEK9013-15 15 G1/2" 90 32 GB/T 12221 Metal Valves Structural Length
SEK9013-20 20 G3/4" 100 38 GB/T 12221
SEK9013-25 25 G1" 110 45 GB/T 12221
SEK9013-32 32 G1 1/4" 125 52 GB/T 12221
SEK9013-40 40 G1 1/2" 140 60 GB/T 12221
SEK9013-50 50 G2" 160 70 GB/T 12221

 

V. Typical Application Scenarios

  1. Building Water Supply and Drainage : Residential/commercial building water supply branches, water heaters/washing machines and other sanitary ware connections (live connection structure is convenient for later maintenance);
  2. HVAC : Opening and closing control of underfloor heating and radiator branches (live connection adapts to pipeline thermal expansion and contraction, reducing leakage risk);
  3. Solar Water Heating System : Collector and water tank connecting pipelines (live connection design adapts to the disassembly and assembly requirements of outdoor installation);
  4. Small industrial equipment Machine tool cooling system, lubricating oil pipeline flow control (threaded connection adapter equipment interface);
  5. Gas pipeline (Limited to non-corrosive gases): Natural gas household branch pipe (must comply with local gas regulations, soft seal to ensure airtightness).

Keyword

SEK9013 live connection ball valve
+
  • SEK9013 live connection ball valve

SEK9013 live connection ball valve

The SEK9013 live-connection ball valve uses a nickel-plated brass valve body (compliant with GB/T 5231), integrating live-connection and threaded double connection (adaptable to GB/T 7306, GB/T 12465). The butterfly handle is easy to operate, and the nitrile rubber soft seal (compliant with GB/T 12237) ensures low leakage. Suitable for non-corrosive fluids such as water and oil, covering building water supply and drainage, HVAC, solar energy, etc. It combines installation flexibility and reliable sealing, providing an integrated solution for efficient opening and closing + convenient maintenance for small and medium-sized pipe lines.

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