Non-Rising Stem Gate Valve

The Non-Rising Stem Gate Valve is a mature gate valve product launched by Zhejiang Zhongguan Valve Manufacture Co., Ltd. for complex working conditions in chemical, power, shipbuilding, and other industries. This product features a double sealing structure of metal + soft sealing, combined with a modular design, ensuring stable operation in high-temperature, low-temperature, and corrosive environments.

This Non-Rising Stem Gate Valve has passed testing standards such as API598 and GB/T13927.

Detailed Product Description

1. Core Structure and Sealing Design

The Zhongguan Valve non-rising stem gate valve adopts a hidden stem structure, with a compact overall structure, making it particularly suitable for piping systems with limited installation space.

Double sealing structure: Metal seal + soft seal combination

Stable operation in cryogenic environments as low as -196℃ and high-temperature conditions up to 425℃

Effectively reduces the risk of internal leakage in actual operation, achieving long-term stable sealing

This design is widely used in systems with high safety requirements, such as chemical plants and power plant pipelines.

2. Performance Testing and Quality Control

Before leaving the factory, every Non-Rising Stem Gate Valve undergoes more than 20 testing procedures, covering key indicators such as shell strength, sealing performance, and opening and closing torque.

Leakage rate controlled at ≤0.01%

More stringent than conventional industry standards

Continuous 5-year third-party random inspection pass rate maintained at 100%

These data have given many overseas customers greater confidence in long-term cooperation.

3. Production Capacity and Customization Support

As a stable China valve supplier, Zhongguan Valve has a complete production system:

Monthly production capacity: 100,000+ units

Supports rapid delivery of large-volume orders

Customizable special sizes and materials upon request

Ultra-low carbon stainless steel

Hastelloy

Other engineering specified materials

Whether it's standard products or non-standard working condition requirements, we can cooperate to meet your needs.

4. Industry Application Cases

Power Industry

In a power plant project in Guangdong, this non-rising stem gate valve has been operating in a high-temperature environment of approximately 400℃ for a long time. Customer feedback shows that the frequency of equipment maintenance has significantly decreased, and the valve remains in good condition after 3 years of continuous use. 

Marine and Offshore Engineering Field

The product has passed relevant corrosion resistance certifications. After 5 years of continuous use on ocean-going vessels, the opening and closing functions remain normal, and its corrosion resistance performance is superior to that of ordinary valve products.

Key Procurement Parameters – Non-Rising Stem Gate Valve