
Z11/61Y美标螺纹闸阀说明:
闸阀又称闸板阀或闸门阀,应用广泛的一种阀门。它是通过闸板的升降来控制阀门的启闭,闸板垂直于流体方向,改变闸板与阀座间相对位置即可改变通道大小。
闸阀具有以下优点:
1、流体阻力小,密封面受介质的忡刷和侵蚀小。
2、开闭较省力。
3、介质流向不受限制,不扰流、不降低压力。
4、形体简单,结构长度短,制造工艺性好,适用范围广。
Z11/61Y美标螺纹闸阀结构设计和规范:
锻钢闸阀制造按API 602,BS5352,ANSI B16.34.
试验与验收按API 598,标识按照MSS SP-25.
Z11/61Y美标螺纹闸阀结构型式:
1.全通径或缩径;
2.明杆带支架;
3.两端自动调心的填料压套;
4.用缠绕式垫片的螺栓型阀盖、螺纹密封焊接型阀盖,或自密封阀盖;
5.本体倒密封;
6.承插焊接ANSI/ASME B16.11;
7.螺纹端(NPT端)按ANSI/ASME B1.20.1。
Z11/61Y美标螺纹闸阀材料表:
| 序号 NO. | 名 称 | 美标碳钢 CS to ASTM | 美标合金钢 AS to ASTM | 美标不锈钢钢 SS to ASTM | ||
| Part Name | Type A 105 | Type F22 | Type F304(L) | Type F316(L) | ||
| 1 | 阀体 | Body | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 2 | 阀座 | Seat Ring | A276 420 | A276 304 | A276 F304(L) | A276 F316(L) |
| 3 | 闸板 | Wedge | A276 430&410 | A182 F304 | A182 F304(L) | A182 F316(L) |
| 4 | 阀杆 | Stem | A182 F6 | A182 F304 | A182 F304(L) | A182 F316(L) |
| 5 | 垫片 | Gasket | Corrugated SS+graphite | SS+PTFE | ||
| 6 | 阀盖 | Bonnet | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 7 | 螺栓 | Bonnet Bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
| 8 | 销 | Pin | A276 420 | A276 F304 | ||
| 9 | 填料压套 | Gland | A276 410 | A182 F304(L) | A182 F316(L) | |
| 10 | 活节螺丝 | Gland Eyebolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
| 11 | 填料压盖 | Gland Flange | A105 | A182 F11 | A182 F304(L) | A182 F316(L) |
| 12 | 螺母 | Gland Nut | A194 2H | A 194 4 | A194 8 | A194 8M |
| 13 | 阀杆螺母 | Stem Nut | A276 420/Cu-Alloy(铜合金) | |||
| 14 | 手轮锁紧螺母 | H.W.Lock Nut | A 194 2H | A194 4 | A 194 8 | A194 8M |
| 15 | 铭牌 | Nameplate | SS | |||
| 16 | 手轮 | Handwheel | A197 | |||
| 17 | 衬垫 | Bearing Gasket | A473 431 | |||
| 18 | 填料 | Stem Packing | Flexible Graphite | PTFE | ||
| 适用介质 Suitable Medium | (水、油、气等)W.O.G.etc | (酸类)HNO3,CH3OOH etc | ||||
| 适用温度 Suitable Temperature | -29℃~425℃ | -29℃~550℃ | -29℃~180℃ | |||
注:可按要求采用其他材料 CS=碳钢 AS=合金钢 SS=不锈钢
Z11/61Y美标螺纹闸阀尺寸和重量表
| 通径 | 缩径RB | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | ||
| NPS | 全径FB | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | ||
| L | 150~800Lb | 79 | 79 | 92 | 111 | 120 | 120 | 140 | 178 | |
| 900Lb | 79 | 92 | 111 | 120 | 120 | 140 | 178 | 210 | ||
| 1500Lb | 111 | 111 | 111 | 114 | 120 | 140 | 162 | 210 | ||
| H(OPEN) | 150~800Lb | 158 | 158 | 169 | 197 | 236 | 246 | 283 | 330 | |
| 900~1500Lb | 169 | 197 | 197 | 236 | 246 | 283 | 330 | 354 | ||
| W | 150~800Lb | 100 | 100 | 100 | 125 | 160 | 160 | 180 | 200 | |
| 900~1500Lb | 100 | 125 | 125 | 160 | 160 | 180 | 200 | 240 | ||
| Weights | Bolted | 150~800Lb | 2.1 | 2.0 | 2.3 | 4.3 | 5.9 | 6.9 | 11.1 | 15.2 |
| 900~1500Lb | 2.5 | 4.3 | 4.2 | 6.6 | 8.8 | 12.5 | 17.2 | 23.5 | ||
| Welded | 150~800Lb | 1.8 | 1.7 | 2.0 | 3.8 | 5.1 | 6.1 | 10.2 | 14.2 | |
| 900~1500Lb | 2.4 | 4.2 | 4.0 | 6.3 | 8.7 | 12.1 | 17.2 | 22 | ||
“Z11”是中国阀门型号编制标准(JB/T 308)中的一种简化表示,其基本含义如下:
· Z: 代表闸阀(Zha Fa)。
· 1: 代表连接形式为内螺纹连接(Nei Luo Wen)。
· 1: 代表结构形式为明杆模式闸板(Ming Gan Zhi Ban Shi),但通常对于小口径螺纹闸阀,更常见的是暗杆设计(阀杆不升降,只旋转)。在实际应用中,Z11常被默认为暗杆螺纹闸阀。型号末尾未标注密封面材料代号,通常表示密封副由阀体材料直接加工而成,或为及基本的软密封/金属密封。结合“美标螺纹”,此阀门特指其螺纹规格遵循美国标准。
Z11美标螺纹闸阀是一种阀体通道两端采用美标螺纹(如NPT)连接的闸阀。它是一种结构紧凑、安装简便的切断阀,通过旋转手轮使闸板升降来实现管路的通断。由于其连接方式无需焊接或法兰对接,特别适用于小口径(通常DN50以下)、中低压力的管道系统,常见于仪表、设备接口以及需要经常拆卸维护的场合。
Z11美标螺纹闸阀主要特点
1. Z11美标螺纹闸阀美标螺纹连接: 螺纹通常为NPT(National Pipe Taper),这种锥管螺纹能通过螺纹自身的咬合实现一定的密封,密封性能良好,连接强度高。
2. Z11美标螺纹闸阀结构紧凑轻便: 省去了法兰等连接部件,体积小,重量轻,安装空间要求低。
3. Z11美标螺纹闸阀安装拆卸便捷: 螺纹连接使得安装和拆卸都非常方便,便于维护和更换。安装时需在螺纹上缠绕生料带或涂抹密封胶以确保密封。
4. Z11美标螺纹闸阀经济实用: 制造成本和安装成本相对较低,是性价比极高的基础阀门选项。
5. Z11美标螺纹闸阀流通阻力小: 全开时,介质通道直通,流阻小,压力损失低。
应用领域
· Z11美标螺纹闸阀仪表测量系统: 压力表、流量计等仪表的根部阀。
· Z11美标螺纹闸阀设备接口: 压缩机、泵、锅炉等设备的进出口小口径管路。
· 取样与排气系统: 取样阀、放空阀。
· 低压公用工程: 水、空气、油品等非危险性介质的中低压管路。
Product Overview of Z11 American Standard Threaded Gate Valve
Model Designation Interpretation
The model"Z11" is a simplified designation under the Chinese valve model standard (JB/T 308), with the basic meaning as follows:
· Z: Stands for Gate Valve.
· 1: Stands for the connection type as Internal Thread.
· 1: Structurally, it originally implies an Outside Screw Yoke design. However, for small-bore threaded gate valves, a Non-Rising Stem design is far more common. In practice, "Z11" is often understood as a threaded gate valve with a non-rising stem. The absence of a final letter for sealing material typically indicates that the sealing surfaces are integral (made the body material) represent a basic soft/metal seal.
Coupled with "American Standard Threaded", this valve specifically features thread specifications conforming to American standards.
Product Introduction
The Z11 American Standard Threaded Gate Valve is a type of gate valve with American standard threaded ends(e.g., NPT). It is a compact, easy-to-install shut-off valve that controls flow by raising lowering the gate through the rotation of a handwheel. As its connection requires no welding flanges, it is particularly suitable for small-bore (typically under DN50), medium-to-low pressure piping systems. It is commonly found at instrument equipment connections, in locations requiring frequent disassembly for maintenance.
Main Features
1. American Standard Threaded Connection: The threads are typically NPT, which provides good sealing high connection strength through the interference fit of the tapered threads themselves.
2. Compact Lightweight Design: The absence of flanges other connecting components results in a small size, light weight, low installation space requirements.
3. Easy Installation Removal: Threaded connections allow for quick easy installation disassembly, facilitating maintenance replacement. Sealants like PTFE tape pipe dope must be applied to the threads to ensure leak-tightness.
4. Cost-Effective: Both manufacturing installation costs are relatively low, making it a highly economical basic valve option.
5. Low Flow Resistance: When fully open, it provides a straight-through flow path with minimal resistance pressure drop.
Application Fields
· Instrumentation Systems: Root valves for pressure gauges, flow meters, etc.
· Equipment Interfaces: Inlet/Outlet connections for compressors, pumps, boilers, etc., on small-bore lines.
· Sampling Venting Systems: Sampling valves, vent valves.
· Low-Pressure Utility Services: Medium low-pressure pipelines for non-hazardous media like water, air, oil.
核心术语中英对照:
· Z11美标螺纹闸阀:Z11 American Standard Threaded Gate Valve
· 美标螺纹:American Standard Thread (e.g., NPT)
· NPT螺纹:National Pipe Taper Thread
· 内螺纹连接:Internal Threaded Connection
· 暗杆设计:Non-Rising Stem (NRS)
· 生料带:PTFE Tape / Thread Seal Tape
· 密封胶:Pipe Dope / Thread Sealant
· 根部阀:Root Valve
· 设备接口:Equipment Interface / Nozzle
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