锻钢截止阀

产品概述

This forged steel bellows globe valve adopts an integral forged steel body matched with special stainless steel bellows as the core sealing component. It realizes fully enclosed zero leakage of the valve stem by means of bellows elastic deformation, with dual functions of pipeline shut-off and flow regulation.

Designed for small-bore high-temperature, high-pressure and ultra-high-pressure harsh working conditions, it is available in GB DN15–DN50 (ANSI NPS 1/2″–2″) and pressure ratings of ANSI Class 150–Class 2500 & GB PN16–PN160.

Complying with mainstream global industrial standards (GB, ANSI/ASME), it is widely used in high-pressure pipelines such as power stations, petrochemical, oil and gas, and thermal systems that demand high-performance bellows seal and safety, serving global customers.

主要特性

1. Premium Stainless Steel Bellows, Core Sealing Component

   Adopts one-piece 304/316L stainless steel bellows with multi-layer bellows structure, providing excellent elasticity, corrosion resistance, high temperature resistance and fatigue resistance. The high-quality bellows material ensures stable and reliable sealing performance.

2. Bellows Structure for Zero Leakage, Ultra-High Safety

   Achieves fully enclosed stem sealing through bellows elastic deformation, completely eliminating leakage of steam, thermal oil, toxic, flammable and explosive media. The bellows seal delivers zero volatilization and zero leakage, far superior to conventional packing seals.

3. High Temperature & Pressure Resistance of Bellows

   The stainless steel bellows withstands high temperature and ultra-high-pressure alternating working conditions. The robust bellows structure is crack-resistant and long-lasting, maintaining stable elasticity in long-term operation.

4. Integral Forged Steel Body for Ultra-High Pressure

   Forged steel body with no casting defects features high strength and impact resistance. Combined with the bellows seal design, it ensures stable performance under Class 2500 ultra-high pressure.

5. Globe Type Structure for Shut-off & Regulation

   Lifting disc design runs smoothly with the friction-free bellows, enabling tight pipeline shut-off and precise flow control, with wear and erosion-resistant sealing surfaces.

6. Dual Standard Compliance for Global Market

   Sizes: DN15–DN50 (NPS 1/2″–2″); Pressure: Class 150–Class 2500, PN16–PN160. Dimensions and connections meet both GB and ANSI/ASME standards.

7. Compact Small-Bore Design

   Customized for small-bore high-pressure pipelines, compact in size and flexible for installation in confined spaces.

Applications

1. High-temperature & ultra-high-pressure small-bore pipelines in power stations and boilers
2. Process pipelines requiring strict bellows seal zero leakage in petrochemical and refinery industries
3. Ultra-high-pressure small-bore pipelines in oil and gas wellheads and gathering systems
4. Ultra-high-pressure thermal oil circulation systems
5. High-pressure pipelines in chemical and power industries that prohibit medium leakage

Product Summary