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Ball Valves

3-Piece Flanged Ball Valve

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The 3-Piece Flanged Ball Valve is a high-performance industrial valve named for its unique three-piece structure and flanged connection. Its valve body consists of a central body and two end caps. This modular design allows for convenient in-line inspection, maintenance, or replacement of internal parts without removing the entire valve from the pipeline after installation, significantly reducing equipment downtime and maintenance costs. The flanged connection ensures the firmness and reliable sealing between the valve and the pipeline. This valve is widely used in industries such as petroleum, chemical, pharmaceutical, and power generation for on/off service or flow diversion.

Main Performance Specification

Item Name (English) Parameters (PN) Parameters (PT)
Nominal pressure 1.6, 2.5, 4.0, 6.4 MPa -
Strength testing pressure - 2.4, 3.8, 6.0, 9.6 MPa
Seal testing pressure (low pressure) 0.6 MPa -
Seal testing pressure (high pressure) 1.8, 2.8, 4.4, 7.1 MPa -
Applicable medium (Q41F-(16-64)C) Water, Oil, Gas -
Applicable medium (Q41F-(16-64)P) Nitric acid -
Applicable medium (Q41F-(16-64)R) Acetic acid -
Applicable temperature -40 ~ 180℃ -

Materials of Main Parts

Part Name (English) Q41F-(16-64)C Q41F-(16-64)P Q41F-(16-64)R
Body WCB ZG1Cr18Ni9Ti/CF8 ZG1Cr18Ni12Mo2Ti/CF8M
Bonnet WCB ZG1Cr18Ni9Ti/CF8 ZG1Cr18Ni12Mo2Ti/CF8M
Sphere 1Cr18Ni9Ti/304 1Cr18Ni9Ti/304 1Cr18Ni12Mo2Ti/316
Stem 1Cr18Ni9Ti/304 1Cr18Ni9Ti/304 1Cr18Ni12Mo2Ti/316
Seal ring PTFE PTFE PTFE
Packing PTFE PTFE PTFE

No drawing available.