Rubber bellows are flexible connectors fabricated of nature rubber or synthetic elastomers, steel ring and fabrics, and when necessary, metallic reinforcements provide stress relief in piping systems due to thermal and mechanical vibration and/or movements. ZHW® rubber bellows provide relief from stresses caused by thermal expansion and contraction in pipelines. Movement is always experienced in piping systems due to varying ambient temperatures, differences in temperature of materials handled, and differences in composition. Expansion joints absorb this movement and eliminate the danger of buckling or pulling apart with the high replacement costs that would result.
ZHW ® Engineers can solve anticipated problems of vibration, noise, shock, corrosion, abrasion, stresses and space by incorporating rubber expansion joints into designed piping systems.
Description
ZHW rubber bellows are joint-free whole piece items. Easy to install, they guarantee a complete and rational protection for any mechanical device without limiting its movement. They are manufactured based on the client’s drawing in any shape and dimension.
The quality of ZHW rubber bellows stands for quality and duration. The bellows are designed based on the client’s drawing with the following materials: synthetic rubber resistant to mineral oils and emulsions; natural rubber; neoprene; silicon and EPDM. Upon request, specify the dimensions according to the table below.
Some of the notable features and benefits of the ZHW Series MRBZ1 are:
- Superior noise and vibration control
- Easy Installation with Rotating Metallic Flanges
- Wide Range of Service and Lighter Weight
- Most economical flexible connector
- Large inventory means quick shipments
For more information about the features and benefits of the ZHW Series MRBZ1, Download our brochure.
For up-to-date pricing and availability information. Contact ZHW today.
| DRAWING OF RUBBER BELLOWS | |
| De: | External diameter |
| Di: | Internal diameter |
| h: | Collar height in case no different fitting system is provided |
| Imax : | Maximum opening |
| Lmin : | Minimum closing |
| Note: ZHW rubber bellows type MRBZ1 shown in the table should provide and remark before order. Any other required please contact ZhongHaiWei. | |
| Physical and mechanical properties of rubber bellows | ||||
| No | Item | Index | Measured Value | |
| inner/outer rubber layer |
Unit(mm) | |||
| 1 | Tensile strength (Mpa) | ≥11 | 13.5 | |
| 2 | Elongation at break(%) | ≥400 | 560 | |
| 4 | Hardness (Shore A) | 60±5 | 60 | |
| 5 | Brittleness temperature (℃) | ≤-30 | -40 | |
| 6 | Cohesive strength (between cord fabric) (KN/m) | ≥2.0 | 4.8 | |
| 7 | Hot air aging (100℃*48h) |
Rate of tensile strength reduction | ≤25 | 15 |
| Rate of ultimate elongation reduction | ≤30 | 20 | ||
| 8 | Mass change (10% H2SO4*Room temperature)% | ≤3 | 2 | |
| 9 | Mass change (10% NaOH*Room temperature)% | ≤3 | 2 | |
| For more accurate quotation please provide as following information: | |
| Size & Over Length | ___________________________________ |
| Temperature | ___________________________________ |
| Application | ___________________________________ |
| Materials | ___________________________________ |
| Pressure/Vacuum with surges | ___________________________________ |
| End Drilling Pattern | ___________________________________ |
| Delivery | ___________________________________ |
| Other | ___________________________________ |
