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Micro ball check valve

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.

Key words:

Classification:

Ductile iron 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.

◆ Product overview

HQ44X/45X micro-resistance ball check valve, using rubber wrapping ball as the valve disc, under the action of the medium, can roll on the slideway in the valve body, thus opening or closing the valve, large flow resistance loss, good sealing performance, muffler closed, can reduce the water hammer wave. Horizontal or vertical mounting is acceptable. Can be used for cold water, hot water, industrial and domestic sewage and other pipe network pump outlet, to prevent the medium back flow.

◆Technical parameters

Nominal pressure: 1.0 ~ 1.6MPa
Nominal diameter: 50~1000mm
Applicable medium: water and weak corrosive fluid
Applicable temperature: 0~80 ℃
Flange standard: GB/T 17241.6
Test standard: GB/T 13927




◆ Typical installation diagram

 ◆ Material of main parts

Serial Number 1 2 3 4
Part Name Valve body Disc Spring Valve seat
Material Cast iron, ductile iron Cast copper, stainless steel Stainless Steel Copper, stainless steel

 

◆ Main outline connection dimension

DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000
L 203 216 241 292 330 356 495 622 698 781 914 978 978 1295 1448 1600 1760 1900
L1 - - - - - - 550 650 689 781 914 978 978 1295 1448 1600 1760 1900
H 180 210 225 245 280 320 380 450 470 500 - - - - - - - -
H1 - - - - - - 510 570 640 715 815 825 980 1155 1260 1350 1660 1700

 

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