Gaote Holding Group focuses on the research and development and production of various valves
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Products
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I. Core Structural Features
- 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;
- 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;
- 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).
- 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 |
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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
- 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);
- HVAC : Opening and closing control of underfloor heating and radiator branches (live connection adapts to pipeline thermal expansion and contraction, reducing leakage risk);
- Solar Water Heating System : Collector and water tank connecting pipelines (live connection design adapts to the disassembly and assembly requirements of outdoor installation);
- Small industrial equipment Machine tool cooling system, lubricating oil pipeline flow control (threaded connection adapter equipment interface);
- 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
Professional valve manufacturing
Contact Us
Belongs to:
Gaote Holding Group Co., Ltd.
Tel: +86-595-8896-8800
Email: gaotegroup@126.com
Address: Chenggong Development Zone, Ximei Street, Nan'an City, Quanzhou City, Fujian Province
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