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Z11美标螺纹闸阀

Z11美标螺纹闸阀

  • 型号:Z11
  • 口径:DN15~DN100
  • 压力:150LB~2500LB
  • 材质:20# 304SS 316L C276 蒙耐尔400等
  • 产品概述

Z11美标螺纹闸阀

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 NameType A 105Type F22Type F304(L)Type F316(L)
1阀体BodyA105A182 F22A182 F304(L)A182 F316(L)
2阀座Seat RingA276 420A276 304A276 F304(L)A276 F316(L)
3闸板WedgeA276 430&410A182 F304A182 F304(L)A182 F316(L)
4阀杆StemA182 F6A182 F304A182 F304(L)A182 F316(L)
5垫片GasketCorrugated SS+graphiteSS+PTFE
6阀盖BonnetA105
A182 F22A182 F304(L)A182 F316(L)
7螺栓Bonnet BoltA193 B7A193 B16A193 B8A193 B8M
8PinA276 420A276 F304
9填料压套GlandA276 410A182 F304(L)A182 F316(L)
10活节螺丝Gland EyeboltA193 B7A193 B16A193 B8A193 B8M
11填料压盖Gland FlangeA105A182 F11A182 F304(L)A182 F316(L)
12螺母Gland NutA194 2HA 194 4A194 8A194 8M
13阀杆螺母Stem NutA276 420/Cu-Alloy(铜合金)
14手轮锁紧螺母H.W.Lock NutA 194 2HA194 4A 194 8A194 8M
15铭牌NameplateSS
16手轮HandwheelA197
17衬垫Bearing GasketA473 431
18填料Stem PackingFlexible GraphitePTFE
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RB3/81/23/411 1/41 1/22
NPS全径FB
3/81/23/411 1/41 1/22
L150~800Lb797992111120120140178
900Lb7992111120120140178210
1500Lb111111111114120140162210
H(OPEN)150~800Lb158158169197236246283330
900~1500Lb169197197236246283330354
W150~800Lb100100100125160160180200
900~1500Lb100125125160160180200240
WeightsBolted150~800Lb2.12.02.34.35.96.911.115.2
900~1500Lb2.54.34.26.68.812.517.223.5
Welded150~800Lb1.81.72.03.85.16.110.214.2
900~1500Lb2.44.24.06.38.712.117.222

Z11美标螺纹闸阀

“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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