1. Table of Structural Type of Bellows Expansion Joints
Compensation Type | Type Code | Name | Product Introduction |
Axial type | TN | Universal internal pressure | Simple structure, with inner sleeve if required, applied to straight pipelines of no need of refractory, such as heating, coal gas, chemical and inlet & outlet of pumps. |
WY | Axial external pressure | Large compensation dosage, applied to pipelines of heating, electricity and steam, sinter & liquid pipelines in chemical factory. | |
FSL | Twin tied | Large compensation dosage, self -guide flow, applied for lateral movement of ordinary straight pipelines. | |
FST | Twin telescope | Large compensation dosage, self -guide flow, with inner sleeve if needs, application same as universal internal pressure type, but easier for refractory. | |
MNY | Direct buried internal pressure | Features same as universal internal pressure type, and can be buried underground. | |
MWY | Direct buried external pressure | Features same as axial external pressure type, and can be buried underground. | |
ZYP | Straight pressure-balanced | Applied to straight pipelines where fix support can’t be placed. | |
Lateral type | DLH | Lateral big tied | Large compensation dosage, compensating both axial & radical movement, applied to pipelines where can’t place guide supports. |
XLH | Lateral small tied | Large compensation dosage, compensating the axial, radical and little angular movements of planar pipelines and other pipelines where fix support can’t be placed. | |
QYP | Elbow pressure-balanced | Large compensation dosage, applied to the outlet of equipments in the right-angle pipelines where fix support can’t be placed. | |
Angular type | DJB | Single angular | Compensate the angular movement of planar pipelines |
WXJ | Gimble angular | Compensate the angular movement of spacial pipelines. |
