This standard specifies the types and basic parameters of small multistage centrifugal pumps. This standard is applicable to pumps that convey clean water or hot water below 120°C or slightly corrosive liquids, and whose maximum suction flow force is not greater than 0.3MPa. JB/T 6435.1-1992 Types and basic parameters of small multistage centrifugal pumps JB/T6435.1-1992 Standard download decompression password: www.bzxz.net
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Mechanical Industry Standard of the People's Republic of China Small Multistage Centrifugal Pump Type and Basic Parameters 1 Subject Content and Scope of Application This standard specifies the type and basic parameters of small multistage centrifugal pumps (hereinafter referred to as pumps). JB/T6435.1-92 This standard applies to pumps with the conveying medium being clean water or hot water below 120℃ or slightly corrosive liquids, and the maximum suction pressure not exceeding 0.3MPa. 2 Reference Standards GB3216 Test Methods for Centrifugal Pumps, Mixed Flow Pumps, Axial Flow Pumps and Vortex Pumps 3 Types and Basic Parameters 3.1 Structural Type The pump is divided into 3 structural types: Multistage horizontal pump; Multistage vertical pump; Multistage pipeline pump. According to the requirements of the conveying medium for the material, the pump is divided into ordinary type and all stainless steel type. 3.2 Basic parameters The basic parameters of the pump shall comply with the provisions of the table. The basic parameters in the table are the values of the specified points when the water is clean at room temperature. 3.2.1 3.2.2 The working range of the pump is shown in the figure. The performance range of the pump at the specified point: flow rate 1.6 ~ 25m*/h, head 16 ~ 150m. 3.2.3 The performance deviation of the pump shall comply with the provisions of GB3216C. 3.3 Model Indication Method 3.3.1 Horizontal Pump All stainless steel type is indicated by F (Ordinary type is not indicated) Single-stage head, m Suction diameter, mm Small multistage horizontal pump Example: Suction diameter 40mm, head 16m, all stainless steel small multistage horizontal pump: DW40-8X2-F Approved by the Ministry of Machinery and Electronics Industry on July 20, 1992 and implemented on January 1, 1993 3.3.2 Vertical Pump JB/T6435.192bzxZ.net All stainless steel type is indicated by F (Ordinary type is not indicated)||t t||Single-stage head, m Suction diameter, mm Small multistage vertical pump Example: Suction diameter 40mm, head 16m, ordinary small multistage vertical pump: DWL 40-8×2 Pipeline pump All stainless steel type is represented by F (ordinary type is not represented) Single-stage head, m Suction diameter, mm Small multistage pipeline pump Example: Suction diameter 40mm, head 16m, all stainless steel small multistage pipeline: DWG40-8X2-F 4 Pump direction From the drive end, the pump rotates clockwise. 2 | | tt | 11 25-8 × 12 | | tt | | 25-8 × 13 | | tt | 32- 8 × 5 | | tt | | 32-8 × 6 | 32-8×15| | tt | 40 -8×9 40-8×10 40-8×11 40-8×12 40-8×13 40-8×14 40-8×16 40-8×17 40-8×18| |tt||JB/ T6435.1-92 Pump performance parameter table NPSH (NPSH)r Shaft power Specific speed 50-12×2 50-12×3 50-12×4 50-12×5 50-12×6|| tt | ||65-12× 5 65-12×6 65-12×7 65-12×8 65-12×9 65-12×10 65-12×11 65-12×12 25~8×18 25-8×2 JB/T 6435.1-92 32-8×18- 32-8×2 Pump working range diagram NPSH (NPSH)r Shaft power Specific speed 50m*/h Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.