Product technology and selection method of aquamatic diaphragm valve

1、 Aquamatic diaphragm valve 1 Operation principle 1) open the valve: when the pressure in the pressure control chamber at the upper part of the diaphragm is discharged, the liquid at the inlet of the valve (Zui low pressure 1.5 kg / cm2) will push the shaft rod away from the base to flow through the valve 2) close the valve: through the introduction of pressure (hydraulic or pneumatic) to the pressure control chamber on the upper part of the die plate, the shaft rod in the valve body is pushed to the cushion seat to block the flow of liquid through the valve 2 Model of hydraulic v42 series metal diaphragm valve: v421, v424, v425, v426 ● feature 1) Y-type channel design provides the water flow capacity of low pressure drop 2) the separation design of fluid chamber and pressure control chamber enables the valve to be closed without the assistance of spring 3) through special one-time forming and stress relief process, the fatigue effect of diaphragm is reduced, and the service life of diaphragm is prolonged The standard material is Buna-N (operating temperature is lower than 650C), and Viton material (operating temperature is lower than 1210c) is available for selection 4) the standard material of the valve body is cast iron, equipped with stainless steel shaft and copper baffle parts, greatly enhancing the service life of the valve 5) the standard valve is normally open Aquamatic can provide other operation modes, such as NC, sac, Sao, LS, PI, to meet the diversified operation requirements 2 Aquamatic K52 series plastic diaphragm valve model: k520, k521, k524, k526, ● feature 1) Y-type channel design provides the water flow capacity of low pressure drop 2) the separation design of fluid chamber and pressure control chamber enables the valve to be closed without the assistance of spring 3) through the special one-time forming and stress relief process, the fatigue effect of the diaphragm is reduced, and the service life of the diaphragm is prolonged The standard material is Buna-N (the operating temperature is lower than 650C) 4) the standard material of valve body is glass fiber reinforced plastic filled with NORYL, equipped with PVC shaft rod and baffle parts, greatly enhancing the service life of the valve Standard seal ring material is EP, Viton material (for acid liquid) and butyl material (for alkaline liquid) are available 5) the standard valve is normally open Aquamatic can provide alternative operation modes, such as NC, sac, Sao, LS, PI, etc., to meet diversified operation requirements 3 Aquamatic K53 series plastic diaphragm valve model: k531 k534, k535 ● feature 1) the improved y-channel design provides a lower pressure drop than the K52 series 2) the separation design of fluid chamber and pressure control chamber enables the valve to be closed without the assistance of spring 3) through special one-time forming and stress relief process, the fatigue effect of diaphragm is reduced, and the service life of diaphragm is prolonged The standard material is Buna-N (operating temperature is lower than 650C), and Viton material (operating temperature is lower than 820C) is available for selection 4) the standard material of valve body is glass fiber reinforced plastic filled with NORYL, equipped with PVC shaft rod and baffle parts, which greatly enhances the service life of the valve In addition, CPVC shaft rod and baffle parts (operating temperature lower than 820C) are available for selection 5) two sets of sealing rings are set at the shaft rod to improve the leakage of the shaft rod; on the other hand, overflow holes are added in the middle of the valve body to lead out water drops The standard material of sealing ring is EP, and Viton material (for acid liquid) and butyl material (for alkaline liquid) are available 6) the new bonnet top design allows the internal parts of the valve body to be disassembled without special tools 7) the lower part of the valve body is provided with a bolt fixing seat, which brings a more convenient construction method to the user 8) the standard valve is normally open Aquamatic can provide alternative operation modes, such as NC, sac, Sao, LS, PI, FSSC, to meet the diversified operation requirements Specification and dimension of hydraulic diaphragm valve v42 series K52 series K53 series model Interface C V value model interface C V value model interface C V value 1 / 2 "--- k520 Union 4- -- 3 / 4 "v421dv3 female 11.5- ---- 1 "v421dv4 internal thread 13 k521 Union 15 k531 union 18 1-1 / 4“ V424dv5 internal thread 26.5 ------ -1-1 / 2 "v424dv6 internal thread 32.5 k524 Union 38 k534 union 48 2 "v425dv internal thread 56 k524dv8w socket 42 k535 union 84 2“ V426dv8 female thread 68 k524dv8f flange 42 -- -2-1 / 2 "v426dv10 female thread 84 k526dv10w socket
100
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2-1/2"
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K526DV10F flange 100 --- 3“ V427sdv internal thread 135 k526dv12f flange 100 k537 Union 200 3 "v427fdv flange 135 - -- --- 4 "v428dv flange 275 -
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6"
V429DV
Flange 680 ----