GB/T 37533-2019 in English

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Standard No:	GB/T 37533-2019
Document status:	VALID
Title in English:	Marine swing cylinder radial piston hydraulic motor
Title in Chinese:	船用摆缸式径向柱塞液压马达
Language:	English
File Format:	Electronic (PDF)
Delivery:	Within 1 day
Issued on:	2019-06-04
Implemented on:	2020-01-01
ICS Classification:	47.020.30-Piping systems
Chinese Classification:	U57-Marine hydraulic/pneumatic elements and accessories
Professional Classification:	GB-National Standard
Related Keywords:	qt600 oil distribution shaft oil distribution shaft standard comparison dimensions five-cylinder motor seven-cylinder motor nominal displacement range dual-speed type strengthen marine environment adaptability indicators performance test system test items type inspection factory inspection durability test
Related Topics:	cylinder positive expression diameter column Forward High Efficiency Liquid Column forward expression reverse expression Liquid phase pre-column core action hplc forward column radial column positive expression Forward and reverse columns for liquid phase reverse expression steering column Pneumatic + column column direction bore GBT37533 GB/T 37533-2019 Pressurized column, normal pressure column, reduced pressure column hydraulic puller Marine plunger air compressor Hydraulic motor industry Hydraulic swing cylinder Piston pump motor naming Marine hydraulic cylinder

《GB/T 37533-2019船用摆缸式径向柱塞液压马达》由TC137（全国船用机械标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

Interpretation of the core content of the standard

Comparison dimensions	Five-cylinder motor	Seven-cylinder motor
Nominal displacement range (mL/r)	100-10,000	140-14,000
Unit theoretical torque (N·m/MPa)	15.9-1,598	22.3-2,237
Typical volumetric efficiency

Test items	Type inspection	Factory inspection
Durability test	1000h rated condition or 125% overload for 100h	100h rated condition + 1h overload
Noise test	≤82dB(A) (displacement<315mL/r)	Same as left
Cleanliness control	Purple mass ≤100mg (displacement≤400mL/r) to ≤500mg (displacement>18L)

Preferential selection of ship deck machinery class=instrument>Seven-cylinder type (small torque pulsation)
Five-cylinder type (more compact structure) is recommended for space-constrained situations
Dual-speed flow distribution structure should be selected for frequent speed changes

Oil contamination level should be maintained ≤ISO 18/15 level (GB/T 14039)
Rust-proof oil should be filled for long-term out-of-service, and replaced and maintained annually
Sealing surface roughness should be maintained at Ra≤1.6μm

This standard is mainly improved compared with the old version:

More samples: JJG 21-2008 JGJ 94-2008 QC/T 942-2021

Sample only — not a preview of GB/T 37533-2019

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