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Groove elastic seat seal gate 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

Groove elastic seat seal gate valve is a new generation of valves connected by clamps. It has the advantages of simple installation, material saving, fast speed, and easy maintenance of pipeline valves. It is widely used in water supply and drainage, fire protection, air conditioning, chemical industry, water treatment, municipal engineering, etc.

◆Technical parameters

Nominal diameter Nominal pressure (MPa) Sealing test (MPa) Shell test pressure (Mpa) Medium temperature Applicable media
DN50~DN300 1.0/1.6 1.1/1.76 1.5/2.4 0~70 ℃ Clean water, sewage and raw water

 

◆ Material of main parts

Name Valve body Spool valve core rubber Bonnet Stem snap ring Gland Bracket Sealing ring Handwheel Bolt
Material ductile iron ductile iron EPDM
NBR
ductile iron 20Cr13 Bronze ductile iron ductile iron NBR ductile iron Galvanizing

 

◆ Main outline connection dimension

DN L D₁ D₂ A B H1 H₂ H₃ Trench type
DN50 178 57 53.9 16 8 32 211 300~350 X
60.3 57.2 Y
DN65 190 73 69.1 39.5 340 325~390 X
76.1 72.3 Y
DN80 203 88.9 85 48 290 375~455 X
DN100 229 108 103.7 9.5 70 310 415~515 X
114.3 110.1 Y
DN125 254 133 129.1 83.5 370 500~625 X
139.7 135.5 Y
141.3 137 Z
DN150 267 159 154.5 99 410 575~725 X
165.1 160.8 Y
168.3 164 Z
DN200 292 219.1 214.4 19 11.1 125 520 760~960 X
DN250 330 273 268.3 12.7 152 620 920~1170 X
DN300 356 323.9 318.3 180 707 1055~1355 X

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