Overview

The WJ44H angle type German standard corrugated pipe globe valve is a special valve designed with a right angle flow channel and a metal corrugated pipe dynamic seal. It drives the valve disc to move vertically along the center line of the valve seat through the valve stem, achieving reliable opening and closing of the pipeline and flow regulation. The core of its design lies in the combination of the 90 ° turning structure of the angular valve body and the high-performance metal bellows sealing component. The bellows completely isolates the valve stem from the process medium and compensates for the valve stem stroke through elastic deformation, thereby completely eliminating medium leakage at the valve stem while achieving pipeline direction conversion. The key sealing components of the valve are made of high-quality alloy materials that are corrosion-resistant and erosion resistant. The corrugated pipe is manufactured through multi-layer hydraulic forming technology, which has excellent fatigue resistance and pressure bearing capacity, ensuring zero leakage sealing and long-term stable operation under harsh working conditions such as high temperature, high pressure, toxic and harmful, flammable and explosive. The valve strictly follows European standards such as DIN and EN, and adopts PN series flanges or butt welding standard connections, with a compact structure. Valves can be driven by manual devices or matching electric/pneumatic devices to convert input force into linear motion of the valve disc, achieving smooth and reliable opening, closing, and regulating control. This valve is designed for process pipeline systems with strict requirements for space layout and leakage control in industries such as petroleum, chemical, power, and refrigeration. It is particularly suitable for steam, corrosive media, low-temperature liquids, and other hazardous or high-purity media operating conditions that require compact installation and absolute no leakage and require changing the flow direction.

Product drawing of WJ44H angle type German standard corrugated pipe globe valve

feature

1. Angle type zero leakage compact design: adopting a 90 ° right angle flow channel and metal corrugated pipe sealing integrated design, while realizing the right angle conversion of pipeline direction, the valve stem is completely isolated from the medium through multi-layer corrugated pipes, fundamentally eliminating the leakage path at the valve stem, especially suitable for space limited pipe galleries and compact equipment layouts.

2. Adapt to high pressure differentials and harsh thermal conditions: The pressure bearing parts of the valve are designed strictly in accordance with DIN/EN standards, and the key sealing components are made of high-temperature resistant alloys certified by European standards. The corrugated pipe has undergone multiple wave hydraulic forming and solution treatment, and has excellent resistance to pressure pulsation and thermal cycle fatigue. It can maintain long-term sealing in high temperature, high pressure, frequent start stop, and corrosive media.

3. Dual safety and emergency protection: On the basis of the main seal of the corrugated pipe, a packing box that meets DIN standards is retained as the secondary sealing system. When the corrugated pipe reaches its service life or is accidentally damaged, the stuffing box can immediately play an emergency sealing role, providing a safe buffer for system maintenance and preventing sudden leakage accidents.

4. Flow resistance optimization and stable adjustment: The angular flow channel design significantly reduces turbulence and pressure loss when the medium flow direction changes. The valve disc adopts a low torque guiding structure, combined with the frictionless motion characteristics of the bellows, to achieve smooth valve opening and closing and precise opening, especially suitable for working conditions that require frequent adjustment or high pressure difference cut-off.

5. European standard integration and easy maintenance: strictly manufactured according to DIN/EN standards, using PN series flanges or butt welded end connections, fully compatible with mainstream European pipeline systems. The modular design of corrugated pipes supports online maintenance, allowing for the replacement of sealing components without the need to remove the valve body, significantly reducing downtime and maintenance costs.

6. High purity applicability and intelligent diagnosis: The all metal sealing system eliminates non-metallic material precipitation and pollution, meeting the requirements of EU GMP, FDA and other clean standards. It can integrate corrugated pipe life monitoring sensors and intelligent actuators to provide real-time feedback on sealing status and performance data, achieving predictive maintenance and digital management.