{"id":1547,"date":"2026-02-03T22:19:17","date_gmt":"2026-02-03T14:19:17","guid":{"rendered":"http:\/\/zjjafm.ceshi24.7-mi.net\/?p=1547"},"modified":"2026-02-03T22:19:19","modified_gmt":"2026-02-03T14:19:19","slug":"zazn-type-electric-two-seat-control-valve","status":"publish","type":"post","link":"https:\/\/www.jinaovalve.com\/?p=1547","title":{"rendered":"ZAZN type electric two-seat control valve"},"content":{"rendered":"

Product Description:<\/strong>
\nZAZN series electric two-seat control valves accept the DC current signal from the regulating instrument, change the flow rate of the medium to be modulated, and keep the controlled process parameters at the given value. It is widely used in production automation control in electric power, metallurgy, chemical, petroleum, textile, pharmaceutical, papermaking and other industrial sectors.
\nThe nominal diameter of this series of products is from 20 to 200mm, the nominal pressure is 1.0, 1.6, 4.0, 6.4MPa, the operating temperature range is -40\u00b0C~450\u00b0C, and the acceptance signal is 0~10mA.DC or 4~20mA.DC. Among them, the electric single-seat control valve is suitable for occasions with small pressure difference, large medium viscosity or slightly particulate impurities. Electric sleeve control valves are suitable for large pressure differences. According to the material of the sealing part of the valve trim, there are two types of metal-metal and non-metal-metal seals, the latter of which can reach the VI (zero leakage) standard when the valve is closed. According to different packing materials, it can be divided into two types: general packing seals and bellows seals, the former is used in general occasions, and the latter is used in important occasions where leakage is not allowed. The flow characteristics are linear or equal percentage. The actuators with different actuators can be divided into two types: ordinary type and electronic type. A wide variety of sizes are available.<\/p>\n

Product Features:<\/strong>
\nThe valve body is designed according to the principle of hydrodynamics, and the rated flow coefficient is increased by 30%.
\nThe adjustable range is large, the intrinsic adjustable ratio is 50, and the flow characteristics are straight and equal percentages.
\nThe adjustable cut-off type adopts a soft seal structure spool, which meets the Class VI leakage standard (zero leakage).
\nThe servo amplifier uses deep dynamic negative feedback for improved auto-adjustment accuracy.
\nElectric actuators come in a variety of forms and can be applied to 4~20mA. DC or 0~10mA.DC.
\nElectronic electric control valves can directly control the valve opening by the current signal, without the need for a servo amplifier.
\nBellows sealed control valves form a complete seal on the moving valve stem and block fluid leakage.<\/p>\n

Part Materials:<\/strong>
\nValve body, valve cover: HT200, ZG230-450, ZG1Cr18Ni9Ti
\nValve spool: ZG1Cr18Ni9Ti, Stella alloy overlay weld reinforced PTFE
\nFillers: Teflon, flexible graphite
\nPutter, bushing: 2Cr13
\nGaskets: Rubber asbestos board, 10, 1Cr18Ni9Ti asbestos wound gasket
\nBellows: 1Cr18Ni9Ti<\/p>\n

Technical parameters<\/strong>
\nMain technical parameters<\/strong><\/p>\n

\"\"
\nThe performance indicators of this product comply with GB\/T4213-92. Technical parameters of the supporting electric actuator
\n\"\"<\/p>\n

The data in the table is only for general configuration, and the specific selection depends on the main parameters and user requirements.<\/p>\n

Allowable pressure differential<\/strong><\/p>\n

\"\"<\/p>\n

If the allowable differential pressure value is greater than the nominal pressure, the nominal pressure value is taken.<\/p>\n

Product features:<\/p>\n

\"\"
\nDimensional weight<\/p>\n

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\u00a0<\/span>
\nConnection standard<\/strong>
\nFlange standard: cast iron flange according to GB4216-84, cast iron flange according to GB9113-88
\nFlange sealing surface type: PN10 and PN16 are convex surfaces
\nPN40 and PN64 are concave and convex surfaces, and the valve body is concave
\nStructure length: GB12221-89
\nJacket insulation jacket heat-carrying body interface: butt weld \u03c618\u00d74
\nThe body flange and flange end face distance can be manufactured according to the standard specified by the user. Such as ANSI, JIS, DIN, and other standards.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u54c1\u724c\uff1a\u91d1\u5965<\/p>\n

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