Overview

The J14B internal thread angle pattern ammonia globe valve is a specialized valve that employs an internal thread connection and an angle-type structure. It operates by driving the valve disc through the stem along the vertical axis of the seat to achieve reliable opening, closing, and shut-off control in ammonia medium pipeline systems. Its core design lies in the use of dedicated ammonia-resistant materials and sealing structures, ensuring the valve's ability to withstand the corrosiveness and permeability of ammonia media while maintaining safe sealing under low-temperature and high-pressure conditions.

Key components of the valve are made from specialized corrosion-resistant and low-temperature-tolerant alloy materials. Through precision conical or planar sealing designs and an enhanced sealing structure in the stuffing box, the valve effectively prevents ammonia gas leakage. It features an internal thread connection method, allowing direct screwing onto pipelines via pipe threads, resulting in a compact structure and simple installation.

The valve is typically operated manually by rotating the handwheel, utilizing a threaded transmission mechanism to convert rotational force into linear motion of the stem and disc, ensuring stable and responsive opening and closing control. This valve is widely used in refrigeration, chemical engineering, cold storage, and ammonia refrigeration systems for pipeline control. It is particularly suitable for applications requiring strict sealing and reliable shut-off in the transportation, storage, and processing systems of liquid ammonia, ammonia gas, and other ammonia-based media.

Product Drawing of J14B Internal Thread Angle Pattern Ammonia Globe Valve

Features

1.Professional Sealing Design for Ammonia Application:
Utilizes specialized sealing materials and structures tailored for ammonia media, effectively preventing ammonia gas penetration and leakage. Ensures long-term sealing reliability under conditions involving liquid ammonia, ammonia gas, and other related media.

2.Corrosion-Resistant and Low-Temperature Tolerant Materials:
Key components such as the valve body, disc, and stem are made from high-quality corrosion-resistant alloy materials (e.g., low-temperature steel, austenitic stainless steel) treated to withstand low-temperature and high-pressure environments. This ensures the valve's durability in ammonia refrigeration systems.

3.Compact and Efficient Angle-Type Structure:
The internal thread angle-type design ensures a compact structure with low installation space requirements. It can be directly installed at pipeline corners, enabling both flow direction changes and shut-off functions, making it particularly suitable for space-constrained ammonia system pipeline layouts.

4.Enhanced Packing Sealing System:
Incorporates multi-stage packing sealing structures or bellows sealing designs to effectively prevent ammonia gas leakage along the stem. Meets the zero-leakage requirements for toxic media applications, enhancing system safety.

5.Lightweight and Reliable Operation:
The optimized transmission structure design ensures minimal handwheel operating torque and smooth opening and closing. The stem's vertical displacement directly reflects the degree of opening, facilitating precise manual control. It also supports integration with electric actuators for remote automated control.

6.Convenient and Safe Maintenance:
The valve's simple structure allows for online replacement or easy disassembly and maintenance of key sealing components. The internal thread connection eliminates the need for flange pairing, enabling quick installation and removal, thereby reducing system downtime.

7.Wide Range of Application Conditions:
Suitable for ammonia media temperatures ranging from -40°C to +150°C, with pressure ratings covering conventional industrial requirements. Widely applicable in refrigeration equipment, chemical processes, cold storage systems, and other scenarios.

8.Safety Compliance Certification:
The valve's design and manufacturing comply with relevant industry standards for ammonia valves (e.g., JB/T, GB). Material selection and processing meet safety specifications for hazardous media pipelines.

Structure Diagram of J14B Internal Thread Angle Pattern Ammonia Globe Valve

零部件名称材料表Parts Name and Material List

性能规范表Performance Specification Table

Outline Dimensional Drawing of J14B Internal Thread Angle Pattern Ammonia Globe Valve

Overall Dimensions Table of J14B Internal Thread Angle Pattern Ammonia Globe Valve