GB/T 26409-2022 in English
VALIDMobile concrete pump
- Issued on:2022-03-09
- Implemented on:2022-10-01
- File Format:PDF
- Delivery:Via email within 5 business days
$582.00
《GB/T 26409-2022流动式混凝土泵》由TC328（全国建筑施工机械与设备标准化技术委员会）归口，TC328SC1（全国建筑施工机械与设备标准化技术委员会混凝土机械分会）执行，主管部门为中国机械工业联合会。
Introduction
Background of Standard Revision and Technological Evolution
GB/T26409-2022 replaces the 2011 version of the standard. The main technical changes include:
| Revision items | Requirements of the 2022 version | Requirements of the 2011 version |
|---|---|---|
| Scope of application | Added vehicle-mounted concrete placing pump | Limited to ordinary mobile pumps |
| Stability requirements | Added roll stability angle ≥ 15° | No quantitative indicators are specified |
| Noise limit | Classified by power (112-125dB) | Uniform limit 120dB |
Core parameters and technical requirements
Key indicators of pumping unit:
- Pumping pressure: 110% of the rated working pressure of the hydraulic system
- Switching time: ≤0.3s (distribution valve)
- Suction efficiency: ≥85% (slump 150-200mm)
Typical case: In the 1.25 times load test of a certain model of vehicle-mounted material placing pump, the retraction amount of the outrigger cylinder was 1.8mm, which met the ≤2mm requirement.
Key points for implementing safety protection
| Protection items | Standard clauses | Implementation requirements |
|---|---|---|
| Electrical safety | 4.6.4 | Emergency stop, rotation limit, interlocking function |
| Moving parts | 4.7.8 | Terminal speed ≤3m/s (multi-arm linkage) |
| Environmental materials | 4.7.11 | Prohibition of Class D polluted materials |
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