产品型号：NHSS-TMB

工作压力：3000PSI~6000PSI(413bar),高可达10000PSI(689bar)
工作温度：
PTFE填料：-38oC 至 180oC (-100oF 至 356oF)
PPL 填料：-38oC 至 280oC (-100oF 至 536oF)
石墨填料：-24oC 至 480oC (-75oF 至 896oF)
连接端口:承插焊 内螺纹

适用介质：火力发电厂的一气门二次门蒸汽等高压高温管路及化工高温管路中上作为启闭机构。

鑫盛源高温高压承插焊截止阀优点：

1、两截阀杆设计，上阀杆螺纹淡化工艺处理

2、下阀杆表经经滚压硬化处理上阀杆螺纹的润滑脂与系统介质隔离

3、无旋转的下阀杆垂直运动代替旋转升降，减少阀杆行程对填料的磨擦，手感更轻便

4、阀门在全开位置具有背密封功能

5、可选面板安装

6、可安装手柄或者手轮操作，稳固耐用多种颜色手柄可供选择

7、每只阀门在出厂前均按设计压力的1.1倍进行氮气密封测试,并按额定工作压力的1.5倍水压进行壳体强度测试

高温高压承插焊截止阀

高温高压承插焊截止阀是一种专门设计用于极端工况（高温、高压）并采用承插焊（Socket Weld）端连接的截止阀。其阀体等主要承压件采用耐热合金钢（如WC6、WC9、C5、C12A等）通过锻造工艺制造，确保其在高温下的机械强度和抗蠕变性能。承插焊连接提供了长久性、高强度的管道接口。

高温高压承插焊截止阀主要特点：

高温高压性能： 核心特点。选用特种合金材料，内部密封面常堆焊钴基硬质合金（如Stellite），阀杆采用抗氧化材料，确保阀门在高温（通常＞425°C）、高压（如Class 1500、2500）下长期稳定运行，耐冲蚀、抗氧化。

承插焊连接（SW）： 管道插入阀门的承插口进行焊接，焊缝强度高，连接刚性好，耐振动，不易泄漏，非常适合高压、小口径（通常DN50以下）管道。

高温高压承插焊截止阀特殊结构设计：

压力自密封阀盖（Pressure-Seal Bonnet）： 超高压阀门的典型设计。介质压力越高，对阀盖的密封力越大，密封越稳定。

加长阀盖（Extended Bonnet）： 将填料函远离高温区域，防止填料受热老化，阀杆密封在高温下的稳定性。

密封性极好： 金属硬密封结构在高温高压差下的严密关断，泄漏等级高。

结构紧凑坚固： 锻造阀体和承插焊设计使得阀门整体结构紧凑，能承受管道应力和高振动环境。

高温高压承插焊截止阀应用领域：

广泛应用于石油化工、火力发电、核电、锅炉给水、油气开采等领域的超高温高压关键管路上，如锅炉启动排气、高压蒸汽旁路、催化剂注入、热媒系统等。

高温高压承插焊截止阀主要设计标准：

设计与制造： ASME B16.34

承插焊端： ASME B16.11 或 MSS SP-79

压力-温度等级： ASME B16.34

检验与测试： API 598

High-Temperature High-Pressure Socket Weld Globe Valve Product Overview

Product Definition:

A High-Temperature High-Pressure (HTHP) Socket Weld Globe Valve is a type of globe valve specifically engineered for extreme service conditions (high temperature, high pressure) featuring Socket Weld (SW) end connections. Its main pressure-retaining components, such as the body, are forged premium heat-resistant alloy steels (e.g., WC6, WC9, C5, C12A) to ensure mechanical strength creep resistance at elevated temperatures. The socket weld connection provides a permanent, high-strength pipeline interface.

Key Features:

Excellent HTHP Performance: The core feature. Constructed special alloy materials, with internal seating surfaces often hard-faced with cobalt-based alloys (e.g., Stellite). The stem is made oxidation-resistant materials, ensuring long-term stable operation under high temperature (typically >425°C / 800°F) high pressure (e.g., Class 1500, 2500), with resistance to erosion oxidation.

Socket Weld Connection (SW): The pipe is inserted into the valve's socket then welded. This offers high weld strength, excellent connection rigidity, vibration resistance, minimal leakage risk, making it ideal for high-pressure, small-bore (typically DN50 below) piping.

Specialized Structural Designs:

Pressure-Seal Bonnet: A typical design for ultra-high-pressure valves. The sealing force on the bonnet increases with higher internal pressure, ensuring more reliable sealing.

Extended Bonnet: Positions the stem packing away the high-temperature zone, preventing thermal degradation of the packing ensuring reliable stem sealing at high temperatures.

Exceptional Sealing: The metal-to-metal hard-seat design guarantees tight shut-off under high temperature high pressure differentials, achieving high leakage ratings.

Compact Robust Structure: The forged body socket weld design result in a compact overall structure capable of withstanding piping stress high-vibration environments.

Application Fields:

Widely used in critical ultra-high-temperature high-pressure pipelines within industries such as petrochemical, thermal power generation, nuclear power, boiler feedwater, oil & gas production. Typical applications include boiler startup vents, high-pressure steam bypasses, catalyst injection, thermal fluid systems.

Main Design Standards:

Design & Manufacture: ASME B16.34

Socket Weld Ends: ASME B16.11 MSS SP-79

Pressure-Temperature Ratings: ASME B16.34

Inspection & Testing: API 598