Overview

The J64F welded angle type ammonia stop valve is a specialized valve featuring welded connection and angle-type structure. It drives the disc to move vertically along the centerline of the valve seat through the stem, achieving reliable opening, closing, and shut-off control in ammonia piping systems. The core of its design lies in the use of dedicated ammonia-resistant materials and sealing structures, capable of withstanding the corrosiveness and permeability of ammonia media while ensuring safe sealing under low-temperature and high-pressure conditions. The key components of the valve are made of corrosion-resistant, low-temperature-resistant special alloy materials. Through precision tapered or flat sealing design combined with an enhanced packing seal structure, ammonia gas leakage is prevented. The valve adopts a welded connection method, fixed directly to the pipeline by socket welding or butt welding, offering high connection strength and excellent sealing performance, suitable for high-pressure and leak-critical applications. The valve is typically manually operated by a handwheel, converting rotational force into linear motion of the stem and disc through threaded transmission, achieving stable and sensitive opening/closing control. This valve is widely used in pipeline control in refrigeration, chemical engineering, cold storage, and ammonia refrigeration systems, particularly suitable for the transport, storage, and processing of liquid ammonia, ammonia gas, and other ammonia-based media where strict sealing and reliable shut-off under high-pressure conditions are required.

Product Drawing of J64F welded angle type ammonia stop valve

Features

1.  Professional ammonia-resistant sealing design: Utilizes specialized sealing materials and structures to effectively prevent ammonia permeation and leakage, ensuring long-term reliable sealing under liquid ammonia and ammonia gas conditions.

2.  Corrosion-resistant and low-temperature resistant materials: Key components such as the body, disc, and stem are made of ammonia corrosion-resistant alloys (e.g., low-temperature steel, stainless steel), suitable for low-temperature, high-pressure environments with high durability.

3.  Compact angle-type structure: The welded angle-type design is compact, allowing direct installation at pipe bends to change flow direction while providing shut-off, saving space.

4.  Enhanced packing seal: Employs multi-stage packing or a bellows seal to prevent ammonia leakage along the stem, meeting zero-leakage requirements for toxic media and enhancing safety.

5.  Light and reliable operation: Low handwheel torque, smooth opening and closing; stem lift directly indicates the opening degree for easy control, and it can be adapted for electric actuators.

6.  Easy maintenance: Simple structure allows for online seal replacement; the welded connection provides high strength, reduces leak points, and lowers maintenance frequency.

7.  Wide operating conditions: Suitable for temperatures from -40℃ to +150℃, with pressure ratings covering common industrial requirements. Widely used in refrigeration equipment, chemical processes, and cold storage systems.

8.  Safety compliance certification: Design and manufacturing comply with relevant ammonia valve standards (e.g., JB/T, GB), meeting safety specifications for hazardous media pipelines.