Self-supporting flow balancing 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
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
ZL47F self-operated flow balancing valve, mainly consists of an automatic control valve and manual control valve. Using the automatic pressure change of the medium as the driving force, the flow through the valve itself is automatically adjusted accurately and stably, and at the same time, it has an opening indication, locking, closing and other kinetic energy. Suitable for heating, air conditioning and other non-corrosive medium flow control. One-time adjustment before operation can make the system flow automatically constant at the required set value.
◆Technical parameters
Nominal pressure: 1.6MPa
Nominal diameter: 15~350mm
Applicable medium: water, oil and other non-corrosive liquid
Applicable temperature: 0~100 ℃
Flange standard: GB/T 17241.6
Test standard: GB/T 13927
◆ Typical installation diagram
◆ Material of main parts
| Part Name | Valve body, bonnet | Stem | Disc | Diaphragm |
| Materials | cast iron | Stainless Steel | cast copper | nitrile rubber |
◆ Main outline connection dimension
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 |
| L | 110 | 110 | 115 | 160 | 200 | 215 | 230 | 275 | 290 | 310 | 350 | 430 | 520 | 635 | 670 |
| H1 | 120 | 122 | 137 | 182 | 191 | 197 | 205 | 259 | 268 | 334 | 357 | 407 | 452 | 486 | 555 |
| H | 70 | 70 | 74 | 91 | 147 | 147 | 154 | 189 | 211 | 227 | 260 | 303 | 367 | 430 | 495 |
| Flow (m3/h） | 0.1~1 | 0.1~1.5 | 0.2~2 | 0.5~4 | 1~6 | 2~10 | 3~15 | 5~25 | 10~35 | 15~50 | 30~80 | 40~180 | 100~300 | 150~500 | 200~700 |
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