p1111 p1136 ivt control solenoid valve

... van Cổng vào Cổng Cuộn / Solenoid Cuộn dây Dẫn Dây điện Con chạy Lò xo Cửa van IV .SOLENOID VALVE – NGUYÊN TẮC HOẠT ĐỘNG Một van điện từ có hai phần chính: solenoid van Solenoid chuyển đổi lượng ... hiệu phản hồi từ lõi valve để điều khiển xác Hiện có hai loại card điện tử: Gắn trực tiếp thân valve hình vẽ card điện rời lắp tủ điều khiển nối valve tỷ lệ Trong mạch thủy lực, valve phân phối tỷ ... Phần thân vỏ valve với lõi 2- Phần cuộn điện từ với phần 3- Card a trượt l v e p h â n p h ố i t ỷ l ệ hồi tiếp điện tử điện tử 1- Phần thân vỏ valve với lõi trượt (tương đối giống valve phân phối...

Ngày tải lên: 14/05/2014, 13:08

... pattern and angle pattern control valves The nominal sizes included are DN 15 to DN 400 for straight pattern control valves and DN 25 to DN 400 for angle pattern control valves Normative references ... of currently valid International Standards IEC 60534-1:1987, Industrial-process control valves – Part 1: Control valve terminology and general considerations Definitions For the purposes of this ... of pressure ratings given in the tables Control valve FTF and CTF dimensions taken from a given pressure rating group shall be the same; however, control valves may differ in other respects NOTE...

Ngày tải lên: 25/12/2013, 11:08

... control valve assembly components Whether it is called a valve, control valve or a control valve assembly is not as important as recognizing that the control valve is a critical part of the control ... range of valve travel over which a control valve can maintain the installed valve gain between the normalized values of 0.5 and 2.0 Control Valve: (See Control Valve Assembly.) Control Valve Assembly: ... ensure that the control valve is not the weakest link Following are definitions for process control, sliding-stem control valve, rotary-shaft control valve, and other control valve functions...

Ngày tải lên: 01/01/2014, 18:55

... lệ Valve phân phối tỷ lệ: Valve chia làm ba phần: 1- Phần thân vỏ valve với lõi trượt (tương đối giống valve phân phối thông thường) Dưới hình ảnh so sánh khác lõi valve điện tỷ lệ (bên phải) valve ... sử dụng valve valve thường đóng NC để làm thay đổi áp suất làm việc hai nhánh làm việc khác Tức có áp suất chênh hai nhánh làm việc hệ thống gây valve Khác với valve an toàn, cửa dầu valve (cửa ... valve đặt 50 bar cho xy lanh B Do valve phân phối bắt đầu cấp dầu, xy lanh A thò kẹp chi tiết trước kẹp rồi, áp suất hệ thống tăng lên 50 bar mở để xy lanh B xuống 3- Valve giảm áp: Được ví valve...

Ngày tải lên: 08/01/2014, 01:45

... CONTROL VALVES AND TUNING Page of 13 CONTROL VALVES AND TUNING Selecting the proper control valve for each application involves many factors The valve body design, actuator, ... DISCUSSION OF FLOW CHARACTERISTICS AND VALVE SELECTION The flow characteristic of a control valve is the relationship between the flow rate through the valve and the valve travel as the travel is varied ... percentage valves for linear measurement Valve is the major dynamic element P + I controllers Gain near 1, fast reset rate Derivative of no value Linear valve Self acting or high gain proportional controllers...

Ngày tải lên: 12/03/2014, 16:34

... range of valve travel over which a control valve can maintain the installed valve gain between the normalized values of 0.5 and 2.0 Control Valve: (See Control Valve Assembly.) Control Valve Assembly: ... ensure that the control valve is not the weakest link Following are definitions for process control, sliding-stem control valve, rotary-shaft control valve, and other control valve functions ... about each of these control valve assembly components Whether it is called a valve, control valve or a control valve assembly, is not as important as recognizing that the control valve is a critical...

Ngày tải lên: 14/03/2014, 19:43

... control valve assembly components Whether it is called a valve, control valve or a control valve assembly is not as important as recognizing that the control valve is a critical part of the control ... range of valve travel over which a control valve can maintain the installed valve gain between the normalized values of 0.5 and 2.0 Control Valve: (See Control Valve Assembly.) Control Valve Assembly: ... ensure that the control valve is not the weakest link Following are definitions for process control, sliding-stem control valve, rotary-shaft control valve, and other control valve functions...

Ngày tải lên: 29/03/2014, 08:20

... through control valves, but it may also cause material damage, excessive noise, and high vibration This material damage can severely affect the control valve s operability and overall control ... facilities FIELDVUE™ digital valve controllers installed on Fisher control valves protect your assets by giving a view of operating characteristics such as supply pressure, control signal, friction, ... Fisher V150 Vee-Ball control valve, FieldQ actuator, and FIELDVUE DVC2000 digital valve controller ™ ™ Fisher® Pulp and Paper Solutions | 11 Cooking Digester Liquor Level Control Continuous digester...

Ngày tải lên: 01/04/2014, 00:20

... pneumatic signal for process control systems Expression of performance of air quality infra-red analyzers 60534: Industrial-process control valves 60534-1 (1987) Part 1: Control valve terminology and ... flanged, two-way, globe-type control valves 60534-3-2 (1984) Part 3: Dimensions Section Two Face-to-face dimensions for flangeless control valves except wafer butterfly valves 60534-4 (1982) 60534-5 ... control valve actuators 60534-6-1 (1997) Part 6: Mounting details for attachments of positioners to control valves Section 1: Positioner mounting on linear actuators 60534-7 (1989) Part 7: Control...

Ngày tải lên: 04/04/2014, 11:29

... positionneurs sur les actionneurs rotatifs Industrial-process control valves – Part 6-2: Mounting details for attachment of positioners to control valves – Positioner mounting on rotary actuators ``````-`-`,,`,,`,`,,` ... ELECTROTECHNICAL COMMISSION –––––––––––– INDUSTRIAL-PROCESS CONTROL VALVES – Part 6-2: Mounting details for attachment of positioners to control valves – Positioner mounting on rotary actuators FOREWORD ... for Resale 60534-6-2 © IEC:2000 –5– INDUSTRIAL-PROCESS CONTROL VALVES – Part 6-2: Mounting details for attachment of positioners to control valves – Positioner mounting on rotary actuators Scope...

Ngày tải lên: 04/04/2014, 11:29

... considộrations gộnộrales 534-7 O IEC -7- INDUSTRIALPROCESS CONTROL VALVES Part 7: Control valve data sheet Introduction The writing of control valve specifications is an extremely important segment ... process control system If the wrong control valve is specified, due to either incomplete or erroneous specification, the replacement of that valve becomes costly to both the user and the control valve ... appropriate, for example, cable gland (M20 X 1,5) 89 Solenoid valve manufacturer and model number Body style of solenoid valve Position of control valve in case of electric power failure or emergency...

Ngày tải lên: 04/04/2014, 11:30

... dimensions for flanged, two-way, globe-type control valves 534-3-2 (1984) Section Two - Face-to-face dimensions for flangeless control valves except water butterfly valves 534-4(1982) 534-5 (1982) Part ... COMMISSION INDUSTRIALPROCESS CONTROL VALVES Part 8: Noise considerations Section One - Laboratory measurement of noise generated by aerodynamic flow through control valves FOREWORD 1) The formal ... pressure levels radiated by control valves and/or associated piping configurations, including k e d restrictions, through which compressible fluids are passing Note - Control valves discharging directly...

Ngày tải lên: 04/04/2014, 11:31

... IEC 534-1: 1987, Industrial-process control valves Part 7: Control valve terminology and general considerations IEC 534-2-3: 1983, Industrial-process control valves Three: Test procedures - Part ... INTERNATIONALELECTROTECHNICALCOMMISSION INDUSTRIAL-PROCESS CONTROL VALVES Part 8: Noise considerations Section 2: Laboratory measurement of noise generated by hydrodynamic flow through control valves FOREWORD 1) The formal ... O IEC -7- INDUSTRIAL-PROCESS CONTROL VALVES Part 8: Noise considerations Section 2: Laboratory measurement of noise generated by hydrodynamic flow through control valves Scope This section of...

Ngày tải lên: 04/04/2014, 11:32

... International Standards IEC 60534 (all parts), Industrial-process control valves IEC 60534-1, Industrial-process control valves Part 1: Control valve terminology and general considerations Definitions ... p 2CE = 5.2 p1 22 (6) Regime definition A control valve controls flow by converting potential (pressure) energy into turbulence Noise in a control valve results from the conversion of a small ... of IEC 60534 make use of the valve sizing factors as used in IEC 60534-1 and IEC 60534-2-1 In the usual control valve, little noise travels through the wall of the valve The noise of interest...

Ngày tải lên: 04/04/2014, 11:33

... IEC 534-1 : 1987, Industrial-process control valves general considerations - Part I: Control valve terminology and IEC 534-2: 1978, Industrial process control valves - Part 2: Flow capacity - Section ... (5) using AL, calculated = O Any deviation from a reference control valve can be corrected by the valve ALF ' The reference control valve which has a AL, = O is defined as follows: size in the ... flanged, two-way, globe-type control valves 534-3-Z(1984) Pan 3: Dimensions - Section Two - Face-to-face dimensions for flangeless control valves except wafer buttediy valves 534-4 (1982) Quatriốme...

Ngày tải lên: 04/04/2014, 11:33

... dimensions for flanged, two-way, globe-type control valves 534-3-2 (1984) Section Two - Face-to-face dimensions for flangeless control valves except water butterfly valves 534-4(1982) 534-5 (1982) Part ... COMMISSION INDUSTRIALPROCESS CONTROL VALVES Part 8: Noise considerations Section One - Laboratory measurement of noise generated by aerodynamic flow through control valves FOREWORD 1) The formal ... pressure levels radiated by control valves and/or associated piping configurations, including k e d restrictions, through which compressible fluids are passing Note - Control valves discharging directly...

Ngày tải lên: 04/04/2014, 13:00

... INDUSTRIAL-PROCESS CONTROL VALVES Part 1: Control valve terminology and general considerations Scope I E C Publication 534 applies to all types of industrial-process control valves (hereafter referred toas control ... of a closure member in the valve in response to a signal from the controlling system 3.1.1 Control valves with a linear motion closure member 3.1.1.1 Diaphragm valve A valve in which a flexible ... 3.2.4.1 Valve seats The corresponding sealing surfaces within a control valve which make full contact when the control valve is in the closed position 3.2.4.2 Seat ring A part assembled in the valve...

Ngày tải lên: 04/04/2014, 14:47

... 60534-1 :1987, Industrial-process control valves - Part 7: Control valve terminology and general considerations IEC 60534-2-3:1997, Industrial-process control valves - Part 2: Flow capacity - ... downstream to a control valve body The Fp factor is the ratio of the flow rate through a control valve installed with attached fittings to the flow rate that would result if the control valve was installed ... Double seated globe valve, contoured plug Offset seat butterfly valve Swing-through butterfly valve Contoured small flow valve Single port, equal percentage, contoured globe valve, flow-to-open...

Ngày tải lên: 04/04/2014, 14:49

... ``````-`-`,,`,,`,`,,` - IEC 760/97 a) Control valve Flow 6D 2D IEC 761/97 IEC 762/97 b) Control valve with reducer and expander Flow 2D 6D c) Control valve with elbows Flow 6D 2D IEC d) Control valve with by-pass ... Throttling valves The upstream throttling valve is used to control the inlet pressure to the test section The downstream throttling valve is used for control during testing Together they are used to control ... IEC 60534-1:1987, Industrial-process control valves – Part 1: Control valve terminology and general considerations IEC 60534-2:1978, Industrial-process control valves – Part 2: Flow capacity – Section...

Ngày tải lên: 04/04/2014, 14:49

... speciñc control valve is related solely to the interaction between the closure member and the flow control orifice of a valve This given value may not be applicable when the control valve is ... voltage signals Analogue pneumatic signal for process control systems 534: - Industrial-process control valves 534-1 (1987) Part 1: Control valve terminology and general considerations 534-2 (1978) ... dimensions for flanged, hvo-way, globe-type control valves 534-3-2 (1984) Section Two - Face-to-face dimensions for flangeless control valves except wafer butterfly valves 534-4 (1982) Part 4: Inspection...

Ngày tải lên: 04/04/2014, 14:50