 Design structure of the serial code indicated in capital letters: by (6)
| Code |
Significance |
ellipsis |
first product design products designed |
A |
second product design products designed |
B |
third product design products designed |
| ··· ··· |
the use of sub-section design several products |
below a few examples :
1, GM-25H (Ⅰ) vacuum valves, said public Path 25mm, with both ends welded structure.
2, CCQ-150 ultrahigh vacuum pneumatic valve nominal Path 150mm.
3, GID-250 electric vacuum Butterfly public Path 250mm said.
4, GUQ-40 (KF) pneumatic high vacuum (pressure) valve, said public Path 40mm. GB4982 way to connect the "quick release clamping flange vacuum" DN40 the quick release flange.
5, GD-J100b high vacuum valve nominal 100mm Path, through the form of a guided drive the form of stainless steel metal bellows seals.
6, DYC-JQ50 electromagnetic vacuum pressure valve, said public Path 50mm, through the form of guidance role. (Low vacuum general can only vacuum word).
7, DDC-JQ80 electromagnetic vacuum belt inflatable valve nominal Path 80mm, through the form of guidance role. (Low vacuum general can only vacuum word).
8、 GDC-J25b Baffle electromagnetic vacuum valve, said public Path 25mm, through the form of roles I.
B. Selection vacuum valve factor to be considered (based on) a low pressure vacuum valve.
Ultrahigh vacuum valve and vacuum valves. According to the structural characteristics of a baffle valve pin board valve, butterfly valve, valve, valves, angle valve, the valve direct, three-way valve. According to principles of a manual transmission, pneumatic, electric, and electromagnetic. General electromagnetic pilot pneumatic cylinder moves the implementation process, the pilot can use the control valve cylinder moves the implementation process. For the electric hand-electric, a power outage can be used for manual operation. According to the materials, stainless steel, carbon steel, aluminum alloy materials for the main valve. According to seal the sealed metal and non-metallic materials can be sealed valve. Rubber O-ring seals used in the general vacuum seal leakage rate 10-4Pa.L/S，in the process of axial movement is not high vacuum, high vacuum conditions for the use of a modest; metal bellows seals to the sealed 10-7Pa.L/S its leakage rate applicable to the use of ultrahigh vacuum conditions.
The following is a brief review of the company's production of generic vacuum valve uses. Electromagnetic valve and vacuum belt inflatable electromagnetic vacuum pressure valve is devoted to the prevention of mechanical vacuum pump oil back to the vacuum valve. Installation of mechanical vacuum pump inlet and pump simultaneously open and closed. Generally not used elsewhere, for the vacuum system is not used for gas. Use electromagnetic vacuum pressure valve has the advantage of minimal power consumption, save energy ≤ 50 ml valve made of aluminum alloy. Light weight, small size, fast closing the valve. Flapper Valve used in the vacuum-tube Road links and links the local angle. Driven approach to the hand, gas, electromagnetic, electrical decided by the users. Baffle which GDC-J electromagnetic valve for high vacuum sealed metal bellows, the broader the scope of its application. When activated valve can be used; Location can be arbitrary, a counter-top atmosphere and a feedback signal output. Plank Valve used in a vacuum pipe size requirements, or require a high degree of occasions. Full guide to 10-7Pa.L/S valve leakage rates, double-sealed. Driven hand, gas, electric decided by the users. Pneumatic and electrical installations have feedback signals. Valves and valve for straight-through processing, and can be used in pressure and vacuum both occasions. Driven hand, gas, electric decided by the users. Butterfly for straight-through processing of hand, natural gas, driven by the users -- three decisions. Opening arbitrary angle adjustable manual butterfly valve; Intelligent opened its butterfly valve pneumatic and electrical arbitrary angle adjustable.
Ⅱ.Conditions of Use :
Media valve for the pure air or corrosive gases. Medium temperature determined by the use of rubber extreme temperatures -30 ～ +80 ° C : general NBR. Flours rubber -25~+150 ℃. Solenoid Valve 0~+50 ° C temperature environment (in the freezing conditions of use), relative humidity less than 80%. In addition to electromagnetic vacuum belt inflatable valve only horizontally or vertically, Path following 200mm in the rest of the public said the valve will be installed and arbitrary; as large-diameter valve shaft power, Cantilever its installation should try to avoid the phenomenon, otherwise they will affect the performance and service life of the valve.
Conditions of Use: pneumatic valve pneumatic valve is the main valve leading from the use of electromagnetic conditions: electromagnetic pilot valve requirements: Media must work 40 tm filter filtration. 0.4 ～ 0.6 MPa of pressure. 0.4 MPa pressure for the design of valves. Temperature 0-50 ° C (used in the freezing conditions). For the exchange of supply voltage 220V ± 10% (50Hz). (Who may also provide other DC24V, AC110V. subject to specified) IP65 rating for protection (also marked another special-ordering riot Exm II T4), the two electric companies have the electric valve head. Her first two non-explosion-proof electrical products. One is rotated 90 degrees in electrical head; another is a multi-linear electric rotary head. Two electrical wiring plans for your reference to the first three.
III.Vacuum valve on the storage and installation of attention:
~Responses valve should be kept clean and dry indoors.
~Responses to the long-term storage should regularly check valve to prevent the wet, rust and rubber pieces of aging.
~Responses before installation should contact the surface by vacuum valve and vacuum cleaning deal with health requirements.
~Responses and the user side of the flange connected to the valve, not connected to a hole in the abdomen welding scars, with a range of essential orifice.
~Responses needed for the installation of valves and flanges on both sides to maintain Care.
~Responses and no long-term storage of the valve, the valve should be inching safety in the state. If re-valve assembly overhaul
~Responses, the need for a vacuum test.
IV.Proper understanding of the use and maintenance of vacuum valve.
~Responses to the same connecting flange, which is very important. Many questions from here.
~Responses valves users do best to check first whether the valve intact. Action normal. Annex complete.
~Responses 0.4~0.6MPa pneumatic valve pressure of the gas supply.
~Responses electromagnetic valve leading to the supply voltage AC 220 ± 10% (50Hz).
~Responses pneumatic valve switching signals directly bear AC220V, current limiters; Series should be a relatively large resistance than 1K Ω can. If the DC link should pay attention to the correct polarity.
~Responses to the AC supply voltage electric valve 220 ± 10% (50Hz).
~Responses pin board valve closed when the vacuum valve plate to the side, the other side of the atmospheric conditions, and no open valves Pegboard damage to the components or otherwise affect its doors sealing performance. Only when both sides of the pressure balance valve plate (pressure is less than 2700Pa) allowed only open valve.
~Responses valve to allow the baking temperature is less than or equal to 150 ℃.
~Responses to the use of pneumatic valve may encounter a new source of gas pressure required to close higher, which is a normal phenomenon. to be closed after more than the required number of moves the air pressure drop.
~Responses inflatable valve to allow electromagnetic vacuum belt saw or vertical, but not flip.
~Responses welded valves, valve removed users welding necessary to prevent damage to high-temperature membrane. It should be noted that no welding litter into the valve cavity effect sealing performance.
~Responses to light Canal vacuum valves light up to prevent a strong vibration, and kept clean and dry.
~Responses pneumatic valve called Path 160mm respectively following the installation of an arbitrary direction. Now vacuum valve, the valve on top of the atmosphere can maintain a good vacuum seal. Path said.
~Responses baffle valve normally be vertically above 200mm.
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Supporting the use of vacuum products represent models, Chinese pinyin first letter of its keyword (Printed capital). By (1)
Represents a product-driven approach. Chinese pinyin first letter of its keyword (Printed capital). By (3)
Represents valve channel form Chinese pinyin first letter of its keyword (Printed capital), according to (4)
Exceptions: Only with an inflatable valve Phonetic capital letters Q for code symbols for other types of valves were not coded.
Represent three-way valve product specifications parameter-called public Path. In Arabic, said unit mm. If so DN16mm, 100mm, 500mm expressed with 16,100,500.
Gland seal structure represents footnote, the only stainless steel bellows seals for use code for the Chinese Phonetic Alphabet lowercase letters b, and other sealed structures (such as rubber seal, PTFE) said they were not alphabetical. Only a handful of products (such as vacuum (pressure) valve) to use capital letters within parentheses said linking the main valve or seal materials for the code. By (5)
