YZA Series Rotary Joint for Steel Continuous Casting – 230°C High Temp Metallurgical Swivel Union

Short Description:

Special rotary joint for metallurgical continuous casting

YZA-20D / YZA-20S Models: Max 230°C, 1.2 MPa, 60 rpm. Features 10mm axial compensation and 0.1° deflection angle for extreme high-temp caster rolls.
YZB-20S Model: Max 120°C, 1.2 MPa, 60 rpm. Optimized for water and coolant media in standard continuous casting lines.
Roll-Embedded Design: Joint body hides inside the roll, only the pipeline flange is exposed externally to save critical axial space.
Inverted Internal Seal: Unique structure replaces traditional axial seals, integrating the housing for fast disassembly and maintenance.
Import Replacement: Field-proven to directly replace imported equivalents, reducing procurement costs without changing piping

Product Detail

Product Tags

Overview

The YZA and YZB Series Rotary Joints are purpose-built for modern steel continuous casting and rolling equipment. Designed to meet the harsh demands of cooling continuous casting rolls, these unions ensure stable performance and long service life. Both series utilize high-quality sealing materials and advanced mechanical sealing structures, fully compatible with domestic continuous casting production lines. They are proven to completely replace imported equivalents and meet strict metallurgical production requirements.

Structural Advantages

Unlike conventional unions, the YZA/YZB series features a compact design where the majority of the joint body is embedded directly inside the roll. Only the pipeline connection flange is exposed externally, significantly saving spatial arrangement between the roll and piping flows. The sealing structure adopts a balanced mechanical seal design using high-temperature and wear-resistant sealing elements. Furthermore, the traditional axial series configuration is replaced by a unique inverted internal sealing structure. This innovation not only shortens the axial length but also integrates the housing structure, facilitating easy disassembly, assembly, and maintenance.

Application & Media

These rotary joints are primarily used for cooling rolls in the continuous casting and rolling lines of iron and steel enterprises. They protect the rolls and improve the quality of final products such as slabs and bars. The units are suitable for various media including water and coolant.

Model Specifications

YZA Series (High-Temperature Applications)

Operating Conditions: Max working pressure 1.2 MPa | Test pressure 1.8 MPa | Max temperature 230°C | Max speed 60 rpm | Axial expansion/contraction 10 mm | Deflection angle 0.1°
Applicable Media: Water, coolant
Sub-models: YZA-20D-01, YZA-20D-02, YZA-20D-03, YZA-20S-01, YZA-20S-02

YZB Series (Standard Applications)

Operating Conditions: Max working pressure 1.2 MPa | Test pressure 1.8 MPa | Max temperature 120°C | Max speed 60 rpm | Axial expansion/contraction 10 mm | Deflection angle 0.1°
Applicable Media: Water, coolant