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One-piece ball valve with internal thread

A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category.

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Classification:

Screw thread valve series

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Description


A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category. The valve may be operated manually or with a hand wheel, handle or pedal, and may also be controlled to vary the pressure, temperature and flow rate of the fluid medium. The valve can perform continuous or repeated operations on these changes, such as safety valves installed in hot water systems or steam boilers. In more complex control systems, automatic control valves are used as required by external inputs (I. e., to adjust the changing set point of the flow through the pipeline). The automatic control valve does not need to be manually operated according to its input and setting, so that the valve can accurately control the various requirements of the fluid medium. Valves can also be divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum steel valves, chromium molybdenum vanadium steel valves, dual phase steel valves, plastic valves, non-standard customized valve materials, etc.

◆ Main performance specifications

Product specification: NPS 3/8 "~ 2-1/2"(DN 10-65)
Nominal pressure: PN 2.5/4.0/6.4MPa
Applicable medium: water, air, oil, acid
Applicable temperature:-40-180 ℃
Thread standard: according to BSPT, BSP, NPT, DIN2999 manufacturing



◆ Material of main components

Component Name Material
Q11F-25,40C Q11F-25,40P Q11F-25,40R
Valve body WCB ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
Sphere 1Cr18Ni9Ti ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
Stem 1Cr18Ni9Ti ZG1Cr18Ni9Ti 1Cr18Ni9Ti
Sealing ring PTFE PTFE
Packing PTFE PTFE

 

◆ Main outline connection dimension

NPS DN d L H W
3/8" 10 8 50 30 65
1/2" 15 9.5 52 34 85
3/4" 20 12.5 56 40 95
1" 25 16 67 52 110
1-1/4" 32 20 74 62 140
1-1/2" 40 25 81 68 140
2" 50 32 93 75 155
2-1/2" 65 40 120 82 180

 

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