仪表阀门说明书

实用文档1.4阀门及小型设备代号解释1.4.1闸阀（GATE VALVE）、截止阀（GLOBE VALVE）止回阀（CHECK VALVE）、针型阀（NEEDLE GLOBE VALVE） －  / 特殊代码（3位）见表1.4.1-8阀芯材质，见表1.4.1－7阀体材质，见表1.4.1－6连接型式，见表1.4.1－5接管壁厚，见表1.2.1－2*传动机构，见表1.4.1－4结构型式，见表1.4.1－3压力等级，见表1.4.1－2阀门类别，见表1.4.1－1 注*：只有“连接型式”中为BW时才有此项↑对CL900.1500.2500三个等级的阀门，一般采用压力密封阀盖，此时“阀盖垫片”和“阀盖螺栓”项缺省。

→等级1a、2a、3a、4a、5a适用于JB标准阀门。

注：←如果阀门的结构型式为“2”、“8”和“9”，即阀盖为压力密封阀盖，则该表中的“阀盖垫片材料”和“阀盖螺栓材料”栏缺省。

↑如果阀门的结构型式为“5”，则该表中的“阀杆填料”栏缺省。

表1.4.1－8，特殊代码1.4.2球阀（BALL VALVE）特殊代码（3位）见表1.4.1-8阀芯材质，见表1.4.2－2阀体材质，见表1.4.1－6连接型式，见表1.4.1－5接管壁厚，见表1.2.1－2*传动机构，见表1.4.1－4结构型式，见表1.4.2－1压力等级，见表1.4.1－2阀门类别：球阀/BALL VALVE，代号－Q1.4.3 旋塞阀(PLUG VALVE)阀芯材质，见表1.4.3－2阀体材质，见表1.4.1－6连接型式，见表1.4.1－5接管壁厚，见表1.2.1－2*传动机构，见表1.4.1－4结构型式，见表1.4.3－1压力等级，见表1.4.1－2阀门类别：旋塞阀/PLUG VALVE，代号－P1.4.4 蝶阀(BUTTERFLY VALVE)阀芯材质，见表1.4.4－2阀体材质，见表1.4.1－6连接型式，见表1.4.1－5接管壁厚，见表1.2.1－2*传动机构，见表1.4.1－4结构型式，见表1.4.4－1压力等级，见表1.4.1－2阀门类别：蝶阀/BUTTERFLY VALVE，代号－D1.4.5 疏水阀(STEAM TRAP VALVE)阀芯材质，见表1.4.5－2阀体材质，见表1.4.1－6连接型式，见表1.4.1－5结构型式，见表1.4.5－1压力等级，见表1.4.1－2阀门类别：疏水阀/STEAM TRAP VALVE，代号－S1.4.6 过滤器(STRAINER)阀体材质，见表1.2.1－3连接型式，见表1.4.1－5接管壁厚，见表1.2.1－2*结构型式，见表1.4.6－1压力等级，见表1.3.1－2阀门类别：过滤器(STRAINER)，代号－T 阀芯材质一般为3041.4.7视镜（SIGHT GLASS）阀体材质，见表1.2.1－3连接型式，见表1.4.1－5接管壁厚，见表1.2.1－2*结构型式，见表1.4.7－1压力等级，见表1.3.1－2阀门类别：视镜（SIGHT GLASS），代号－G 注*：只有“连接型式”中为BW时才有此项1.4.8仪表测压阀（Y）接管材质，见表1.4.8-3阀芯材质，见表1.4.1阀体材质，见表1.2.1－3近主管接管长度，见表1.4.8－2接管壁厚，见表1.2.1－2压力等级，见表1.3.1－2主阀类型，见表1.4.8－1阀门类别：仪表测压阀，代号－Y。

双向直动式电磁阀SXDF-8~100系列常闭式SXDF-8K~100K 系列常开式BSXDF-8~100系列防爆型一、产品概述SXDF-8~100系列直动式双向电磁阀是我公司工程技术人员在参改国外同类产品的基础上自发研制成功的一种多功能高技术的自控阀门。

该产品具有结构紧凑，动作灵敏，性能可靠，特别是介质方向可任意流动，解决了目前国内外绝大多数电磁阀只允许介质单向流通的难题，可适用于工业及民用自控领域对管道中的介质进行快速切断及远程控制。

二、主要特点1、工作介质或正反方向流动：由于采用进出口平衡结构，介质压力互相抵消，故电磁阀可实现正反方向正常工作。

2、介质范围广：由于采用直动式，使用介质不需先导孔调整，故可实现气体、液体及各种油类同时使用。

3、无压差工作：由于电磁阀动作不受工作介质压力影响，只靠电磁铁吸力及复位弹簧共同作用。

故工作可靠、安全、迅速。

4、可直接用于真空管道中：由于采用了软密封方式，介质压力与复位弹簧力可均作用于阀口，所以关闭严密，内外泄漏量均高于行业标准最高要求。

5、流通面积大：易于克服通道结疤、堵塞等弊端。

三、工作原理当电磁线圈通电时，电磁铁产生吸力，克服弹簧力。

由于阀塞上、下介质压力相等互相抵消，故阀塞不受介质压力影响。

在铁芯的拉力作用下，阀塞被推离阀口，使阀门开启。

当电磁铁线圈断电后，同样阀塞处于平衡状态，电磁铁吸力消除，阀塞在复位弹簧力的作用下推到密封阀座上，使阀门紧密关闭。

四、主要技术参数公称通径 8 10 15 20 25 32 40 50 65 80 100连接方式 G1/4 G3/8 G1/2 法兰 G3/4法兰G1″法兰G11/4法兰G11/2法兰G2″ 法兰 四孔法兰 四孔法兰八孔法兰公称压力 1.6Mpa 介质压力 +1.0Mpa~ -0.8Mpa +0.8Mpa~ -0.6Mpa 工作温度 5℃~80℃ （特殊-20℃~+150℃）环境温度 -20℃~+60℃工作电压 AC220V 380V 110V DC24V 220V线圈功耗 70W 80W 120W 150W 防爆等级 ExdIICT4 适用介质 气体 燃气 水 轻油开关时间 ≤1S材 质 不锈钢 铸铁、铸钢、不锈钢螺纹式结构图（1）螺纹式外形尺寸（单位：mm ）型号规格SXDF-8B SXDF-10B SXDF-15B SXDF-20 SXDF-25SXDF-32SXDF-40SXDF-50 备 注 连接方式 G 1/4″/G 3/8″/G 1/2″G 3/4″ G 1″ G11/4″ G11/2″ G2″长（L ） 69 73 100 115 120 168 宽（A ） 80 80 80 86 95 125 高（H ） 185 195 218 270 275 295 常开型高度增加40mm防爆型高度 增加35mm宽度加40mm（2）法兰型外形尺寸（单位：mm ）型号规格 SXDF-15BF SXDF-20BF SXDF-25BF SXDF-32BF SXDF-40BFSXDF-50BF 备 注 连接方式 4孔法兰 4孔法兰 4孔法兰 4孔法兰 4孔法兰 4孔法兰 长（L ） 110 110 140 148 148 195 宽（A ） 95 105 115 135 145 160 高（H ） 225 235 260 335 340 360常开型高度增加40mm防爆型高度增加35mm（3）大口径法兰型外形尺寸（单位：mm ）型号规格 SXDF-65FSXDF-80F SXDF-100F SXDF-125F SXDF-150F SXDF-200F 备 注 连接方式 4孔法兰 4孔法兰 4孔法兰 4孔法兰 4孔法兰 4孔法兰 长（L ） 290 310 350 400 480 600 宽（A ） 185 200 220 250 285 340 高（H ） 450 480 520 600 650 680 常开型高度增加40mm防爆型高度增加35mm H六、安装使用注意事项1、电磁阀安装时应选择振动较小的水平管道锻为宜，尽量远离弯道处，以防止水锤对阀芯的冲击。

仪表专业阀门定位器操作维护规程一、概述阀门定位器是调节的主要附件，它与气动调节阀配套使用，接受调解器（包括DCS 或P1.G的调节回路）、气动仪表或电气转换器的输出信号，然后输出气信号去控制气动调节阀，当调节阀动作后，阀的阀位又通过机械装置反馈到阀门定位器，从而使阀门的位置能按调节器输出的控制信号进行正确定位。

阀门定位器的产品按其结构形式和工作原理可以分成电气阀门定位器、气动阀门定位器和智能阀门定位器。

电气阀门定位器能够起到电气转换器和气动阀门定位器的两种作用。

阀门定位器能够增大调节阀的输出功率，减少调节信号的传递滞后，加快阀杆的移动速度，能够提高阀门的线性度，克服阀杆的摩擦力并消除不平衡力的影响，从而保证调节阀的正确定位。

通用型阀门定位器可用于弹簧抚慰型（但动作型）执行器及双动作型执行器,反馈方式通常有直行程和角行程之分，一般均能实现正、反作用的任务选择，反馈凸轮特性有线性、等百分比等特性选择。

智能型电气阀门定位器性能稳定、调校方便；有自动校准系统和HART协议通讯功能；能实现与DCS、现场总线控制系统直接通讯，具备强大自诊断功能及其他扩展功能，控制更精确、稳定，维修简单。

二、电气、气动阀门定位器以KOSOEP800系列阀门定位器为例。

1技术标准（1）气源：净化空气额定压力0.14-0.7MPa（具体以有关产品说明书为难）。

（2）输入信号：4〜20mADC（电气定位器）或20〜IOOKPa（气动定位器）。

（3）输出信号：0.02-0.IMPa或0.04-0.2MPa,最大输出可到100%气源压力（双动作型阀门定位器除外）。

（4）灵敏度：0.1%。

（5）环境温度：-20〜80℃。

(6)电气阀门定位器绝缘电阻:〉20MΩo(7)基本误差：±1机(8)回差：1%。

2检查校验(1)校准仪器1) a.电流信号发生器1台2) b.气动定值器1台3) c.校准压力表2台(2)定位器的检查校验一般应在调节阀(或执行器)检查校验合格、定位器与调节阀装配好后进行。

I&M V 9629 R6 Solenoid Valves used in SafetyInstrumented SystemsASCO Valves ®Page 1 of 7Table of Contents1 I ntroduction (3)1.1 Terms and Abbreviations (3)1.2 Acronyms (3)2 Designing a Safety Instrumented Function using an ASCO Solenoid Valve (4)2.1 Safety Function (4)2.2 Environmental limits (4)2.3 Application limits (4)2.4 Design Verification (4)2.5 SIL Capability (5)2.5.1 Systematic Integrity (5)2.5.2 Random Integrity (5)3 Installation and Commissioning (5)3.1 Installation (5)3.2 Response Time (6)4 Operation and Maintenance (6)4.1 Proof test without automatic testing (6)4.2 Proof test with automatic partial valve stroke testing (6)4.3 Repair and replacement (7)4.4 ASCO Notification (7)5 ASCO Solenoid Pilot Valves Covered (7)6 Status of the document (7)6.1 Releases (7)1 IntroductionThis Operating Manual provides the necessary information to design, install, verify and maintain a Safety Instrumented Function (SIF) utilizing an ASCO Solenoid Valve. This manual provides necessary requirements for meeting the IEC 61508 or IEC 61511 functional safety standards.1.1 Terms and Abbreviations• Process Valve Any valve that is used to control the flow of media being used in a process.For the purpose of this document, this is usually a 2-way valve whosemovement is being controlled by an actuator and pilot valve.• Pilot Valve A 3-way or 4-way valve that is used to send or remove pressurized mediato and from an actuator for the opening and closing of a process valve.• Direct Acting Refers to a solenoid valves main orifice that is opened and closed as adirect result of the solenoid valves electromagnetic movement when thecoil is energized and de-energized.• Indirect Acting Refers to a solenoid valve’s main orifice that is opened and closed as aresult of fluid flow being directed from the electromagnetic 3-way solenoidpilot.• Safety Freedom from unacceptable risk of harm• Functional Safety The ability of a system to carry out the actions necessary to achieve or tomaintain a defined safe state for the equipment / machinery / plant /apparatus under control of the system• Basic Safety The equipment must be designed and manufactured such that it protectsagainst risk of damage to persons by electrical shock and other hazardsand against resulting fire and explosion. The protection must be effectiveunder all conditions of the nominal operation and under single faultcondition• Safety Assessment The investigation to arrive at a judgment - based on evidence - of thesafety achieved by safety-related systems• Fail-Safe State The state where the solenoid is de-energized and its return spring holdsthe pilot in the closed position.• Fail Safe Failure that causes the valve to go to the defined fail-safe state without ademand from the process.• Fail Dangerous Failure that does not respond to a demand from the process (i.e. beingunable to go to the defined fail-safe state).• Fail Dangerous Undetected (DU) Failure that is dangerous and that is not being diagnosed byautomatic stroke testing.• Fail Dangerous Detected (DD) Failure that is dangerous but is detected by automatic stroke testing.• Fail No Effect Failure of a component that is part of the safety function but that has noeffect on the safety function.• Low Demand Mode Mode, where the frequency of demands for operation made on a safety-related system is no greater than twice the proof test frequency.1.2 Acronyms• FMEDA Failure Modes, Effects and Diagnostic Analysis• HFT Hardware Fault Tolerance• MOC Management of Change: These are specific procedures often done whenperforming any work activities in compliance with government regulatoryauthorities.• PFD AVG Average Probability of Failure on Demand• SFF Safe Failure Fraction, the fraction of the overall failure rate of a device thatresults in either a safe fault or a diagnosed unsafe fault.• SIF Safety Instrumented Function, a set of equipment intended to reduce therisk due to a specific hazard (a safety loop).• SIL Safety Integrity Level, discrete level (one out of a possible four) forspecifying the safety integrity requirements of the safety functions to beallocated to the E/E/PE safety-related systems where Safety Integrity Level4 has the highest level of safety integrity and Safety Integrity Level 1 hasthe lowest.• SIS Safety Instrumented System – Implementation of one or more SafetyInstrumented Functions. A SIS is composed of any combination ofsensor(s), logic solver(s), and final element(s).2 D esigning a Safety Instrumented Function (SIF) using an ASCOSolenoid Valve2.1 Safety FunctionWhen de-energized, the ASCO Solenoid Pilot Valve moves to its fail-safe position. Depending on the solenoid specified Normally Closed (NC) or Normally Open (NO), the valve will supply the fluid media or vent the fluid media depending on the piping of the installation. Please note that the solenoid pilot valve must be piped to the actuator in accordance with the manufacturer’s recommendations and allowable desired function.The valve is intended to be part of final element subsystem as defined per IEC 61508 and the achieved SIL level of the designed function must be verified by the designer.2.2 Environmental limitsThe environmental limits of each solenoid are specified in the products respective catalog and Installation & Maintenance Instructions. The designer of a SIF must check that the product is rated for use within the expected environmental limits.2.3 Application limitsThe application limits of an ASCO Solenoid are specified in the products respective catalog and Installation & Maintenance Instructions. It is especially important that the designer check for material compatibility considering on-site chemical contaminants and air supply conditions. If the solenoid valve is used outside of the application limits or with incompatible materials, the reliability data provided becomes invalid.2.4 Design Verification• A detailed Failure Mode, Effects, and Diagnostics Analysis (FMEDA) report is available from ASCO.This report details all failure rates and failure modes as well as the expected lifetime.•The achieved Safety Integrity Level (SIL) of an entire Safety Instrumented Function (SIF) design must be verified by the designer via a calculation of PFD avg considering redundant architectures, proof test interval, proof test effectiveness, any automatic diagnostics, average repair time and the specific failure rates of all products included in the SIF. Each subsystem must be checked to assure compliance with minimum hardware fault tolerance (HFT) requirements. The Exida exSILentia tool is recommended for this work.•When using an ASCO Solenoid in a redundant configuration, a common cause factor of 5% should be included in safety integrity calculations.•The failure rate data listed the FMEDA report is only valid for the useful life time of an ASCO Solenoid.The failure rates will increase sometime after this time period. Reliability calculations based on the data listed in the FMEDA report for mission times beyond the lifetime may yield results that are too optimistic, i.e. the calculated Safety Integrity Level will not be achieved.2.5 SIL Capability2.5.1 Systematic IntegrityThe product has met manufacturer design process requirements of Safety Integrity Level (SIL) 3. These are intended to achieve sufficient integrity against systematic errors of design by the manufacturer. A Safety Instrumented Function (SIF) designed with this product must not be used at a SIL level higher than the statement without “prior use” justification by end user or diverse technology redundancy in the design.2.5.2 Random IntegrityThe solenoid valve is a Type A Device. Therefore when used the only component in a final element subassembly, a design can meet SIL 3 @ HFT=1 and SIL 2 @ HFT=0.When the final element assembly consists of many components (solenoid valve, quick exhaust valve, actuator, isolation valve, etc.) the SIL must be verified for the entire assembly using failure rates from all components. This analysis must account for any hardware fault tolerance and architecture constraints.3 Installation and Commissioning3.1 Installation•The ASCO Solenoid valve must be installed per standard installation practices outlined in the Installation Manual.•The environment must be checked to verify that environmental conditions do not exceed the ratings.•The ASCO Solenoid must be accessible for physical inspection.•Instrument Air Filtration: These solenoids are intended for use on clean, dry air or inert gas filtered to50 microns or better. To prevent freezing, the dew point of the media should be at least 18°F(10°C)below the minimum temperature to which any portion of the clean air or gas system could be exposed.Instrument air in compliance with ANSI/ISA Standard S7.3-1975 (R1981) exceeds the above requirements and is, therefore, an acceptable medium for these valves.• It is the operator’s responsibility to only use design options such as latches, when it is safe to do so.• Typical 3-way pilot valve piping configurations:a. 1 out-of 1 – This is the most common pilot valve configuration used.b. 2 out-of 2 – This is commonly used for high availability applications. In the case that onesolenoid valve was to spuriously trip, the second solenoid still maintains the position of theactuator/process valve at its operating state. Both solenoids must close in order to shift theactuator/process valve to its non-operating state.3.2 Response TimeThe response time of a solenoid pilot valve will vary by design. The factors that affect response time are pilot valve orifice size, operating pressure, size of actuator, torque required to open and close process valve, and distance between pilot valve and actuator. It is the responsibility of the end user to use a pilot valve that delivers the correct opening and closing time of the process valve required for the application.4 Operation and Maintenance4.1 Proof test without automatic testingThe objective of proof testing is to detect failures within an ASCO Solenoid that are not detected by any automatic diagnostics of the system. Of main concern are undetected failures that prevent the safety instrumented function from performing its intended function.The frequency of proof testing, or the proof test interval, is to be determined in reliability calculations for the safety instrumented functions for which an ASCO Solenoid is applied. The proof tests must be performed more frequently than or as frequently as specified in the calculation in order to maintain the required safety integrity of the safety instrumented function.The following proof test is recommended. Any failures that are detected and that compromise functional safety should be reported to ASCO.Table 11Bypass the safety PLC or take other appropriate action to avoid a false trip, following company Management of Change (MOC) procedures2Inspect the external parts of the solenoid valve for dirty or clogged ports and other physical damage. Do not attempt disassembly of the valve.the 3De-energize the solenoid coil and observe that the actuator and valve move. Energize solenoid after a small movement of the valve.4Inspect the solenoid for dirt, corrosion or excessive moisture. Clean if necessary and take corrective action to properly clean the air supply. This is done to avoid incipient failures due todirty air.5Record a n y failures i n your c o m p a n y’s S I F i n s p e c t i o n d a t a b a s e. Restore the loop t o full operation.6Remove the bypass from the safety PLC or otherwise restore normal operationThis test will detect approximately 99% of possible DU failures in the solenoid (Proof Test Coverage).The person(s) performing the proof test of an ASCO Solenoid should be trained in SIS operations, including bypass procedures, solenoid maintenance and company Management of Change procedures. No special tools are required.4.2 Proof test with automatic partial valve stroke testingAn automatic partial valve stroke testing scheme that performs a full stroke of the solenoid valve and measures valve movement timing will detect most potentially dangerous failure modes. It is recommended that a physical inspection (Step 2 from Table 1) be performed on a periodic basis with the time interval determined by plant conditions. Maximum inspection interval is five years but an annual inspection is recommended.4.3 Repair and replacementAccording to section 7.4.7.4 of IEC 61508-2 a useful lifetime based on experience, should be assumed. General field knowledge suggests that most solenoid valves have a useful life of 3 to 10 years, but may be longer depending on the valve series and other factors.It is the responsibility of the end user to establish a preventative maintenance process to replace all solenoids before the end of the useful life.4.4 ASCO NotificationAny failures that are detected and that compromise functional safety should be reported to ASCO Valve. Please contact ASCO customer service.5 ASCO Solenoid Pilot Valves CoveredSelect ASCO valves from the following series have been evaluated per IEC 61508 parts 1 and 2 and covered under this document:∙8314 Series - 3-Way Direct Acting Pilot Valves∙8320 Series - 3-Way Direct Acting Pilot Valves∙8316 Series - 3-Way Indirect Acting Pilot Valves∙551, 552, 553 Series - 3 and 4-Way Indirect Acting Pilot Valves∙8317, 8320, 8321 Series - 3-Way Harsh Environment Pilot Valves∙327/8327 Series - 3-Way Direct Acting Pilot Valves.∙126 Series - 3-Way Direct Acting Pilot Valves.∙8317 Series – 3-Way Piloting Quick Exhaust valve∙307 Series - 3-Way Direct Acting Pilot Valves∙364 Series – 3-Way Spool Valves∙362/562 Series – 3-Way and 4-Way Spool Valves6 Status of the document6.1 ReleasesRevision: GECN Number: 264756Release status: V9629 Initial Release on 02/18/11。