HG/T 2126-1991 Technical requirements for propeller agitators

HG/T 2126-1991 Technical Specifications for Propeller Agitators HG/T2126-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Technical Conditions for Propeller Agitators
Subject Content and Scope of Application
This standard specifies the requirements for the manufacture, inspection, packaging, storage and transportation of propeller agitators. This standard is applicable to metal casting propeller agitators. 2 Reference standards
GB976 Classification and technical conditions of grey iron parts
GB979 Classification and technical conditions of carbon steel parts
GB1095 Flat key and keyway surface dimensions GB 1173
Technical conditions for cast aluminium alloys
5 Technical conditions for cast copper alloys
GB 1176
GB1348
GB 1801
GB 2100
Ductile iron castingswwW.bzxz.Net
Tolerances and fits to 300mm holes and shafts Technical conditions for fits of stainless acid-resistant steel castings
Casting dimension tolerances
GB 6414
HG/T2123 Types and main parameters of agitators 3 Types and main parameters
The types and main parameters of propeller agitators shall comply with the provisions of HG/T2123. 4 Technical requirements
4.1 In addition to meeting the requirements of the drawings, castings shall also meet the following standards. 8.
Gray iron castings shall comply with the requirements of GB976;
Spheroidal cast iron castings shall comply with the requirements of GB1348
Carbon steel castings shall comply with GB 979 requirements;
d. Stainless acid-resistant steel castings meet the requirements of GB2100: e.
Copper alloy castings meet the requirements of GB1176; HG/T2126-91
20010329
Aluminum alloy castings meet the requirements of GB1173, f.
4.2 The limit deviations of the dimensions and geometric parameters of the propeller agitator shall be in accordance with the provisions of Table 1, and the reading and manufacturing dimension tolerances of other non-machined surfaces shall be in accordance with CT 10 of GB 6414,
Ministry of Chemical Industry of the People's Republic of China 1991-08-19 Zhuang Standard 1992-01-G1 Implementation
Agitator Diameter DJ
Agitator Shaft Hole Diameter
Agitator Hub Key Bracket
Blade Length!
Blade section width
Blade section inclination angle
HG/ T 2126 — 91
Limit deviation
D[0 or JS 9
GB 6414
GB1801
GB1095
GB 6414
GB 6414
4.3 The roughness Ra of the shaft hole of the agitator shall not be greater than 3.2um. 4.4 The radius of the casting fillet shall not be less than 3mm except for those noted in the drawings. The surface of the blade shall be smooth, without sharp shuttles and burrs. 4.5 Balance of propeller agitator
4.5.1 When the linear velocity v of the blade end is less than 5m/s, static balance test may not be carried out; when the linear velocity is 5m/s, static balance or dynamic balance test shall be carried out. When the stirring shaft is a flexible shaft, a dynamic balancing test must be carried out. 4.5.2 Balance degree grade G, see Table 2.
P (equipment pressure), MPa
(stirring shaft speed):/min
Non-pressure vessel or pressure P0.1
General vacuum equipment
P=0.1--0.6
p=0.10, 6
0.6P≤1.6
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