PRODUCTS CENTER
Peru DF Stainless Steel Corrosion-resistant Multistage Pump
Category:
Product Description
DF-type stainless steel corrosion-resistant multi-stage pump is designed to deliver clean water or other liquids with physical and chemical properties similar to clean water, with solid particle content ≤2% (particle size below 1 mm), solid concentration ≤5% wt and medium temperature ≤105℃. By changing material of wetted parts, adjusting shaft seal type or equipping extra cooling system, it can also handle hot water up to 210℃, oil fluid, corrosive or abrasive medium. It is a corrosion-resistant variant within sectional multistage centrifugal pump family.
Model Description:
Example: DF280-43 × 5;
DF —— Sectional Stainless Steel Corrosion-resistant Multistage Centrifugal Pump
280 —— Design rated flow: 280m³/h
43 —— Single-stage design head: 43 m
5 —— Total number of pump stages
Rotation Direction:
Clockwise when observing from motor end toward pump casing.
Material of Main Wetted Components:
All flow-pass components are available in two material categories: cast steel and stainless steel including 304, 316, 316L, 2205, 2507, etc.
Complete Supply Scope:
The complete set includes pump, electric motor and base frame; either shared common base or independent pump base is optional. The manufacturer supplies auxiliary fittings (discharge reducer, gate valve, foot valve, check valve) and spare parts (impeller, wear ring, diffuser sleeve, balance disc, shaft sleeve).
Structure Description:
D, DG, MD, DF and DY type consist of four major assemblies: stationary casing assembly, rotor assembly, bearing assembly and shaft seal assembly.
1. Stationary Parts
Consists of suction casing, middle casing, discharge casing and diffusers. All sections are fastened together via through tie bolts to form hydraulic working chambers.D type: Horizontal suction port, vertically upward discharge port.DG type: Both suction and discharge ports face vertically upward.MD, DF, DY type: Standard horizontal suction and vertical discharge; vertical suction & discharge design is available upon customized request.
2. Rotor Assembly
Composed of pump shaft, impellers, balance disc and shaft sleeves. The shaft transmits driving torque to impellers; balance disc offsets axial thrust; replaceable shaft sleeves mounted on shaft protect the shaft from abrasion.
3. Bearing Assembly
Includes bearing housing, bearings and bearing gland.85-67, 155-67, 600-60 adopt sleeve bearings with oil bath lubrication; rolling bearing structure is optional for 85-67 and 155-67.All other types use grease-lubricated rolling bearings.
4. Shaft Seal
Standard configuration is soft packing seal, composed of stuffing box, packing and water slinger fitted on suction casing and end cover. Pressurized sealing water fed into stuffing box performs water sealing, cooling and lubrication.D type: Sealing water sourced from internal high-pressure pump medium.DG, MD, DF, DY type: Sealing water from internal process fluid or external service water; mechanical seal is widely adopted as alternative for these four pump series.
5. Drive Arrangement
The pump is directly driven by prime mover via flexible coupling. Rotation is clockwise when viewed from prime mover side.
Hunan Sanchang Pump Co., Ltd.
| Email: | info@sanchangpump.net |
| Hotline: | +86 181 4266 2779 |
| +86 193 1300 1794 | |
| Mobile/Wechat/WhatsApp: | +86 181 4266 2779 |
| Address: | No.517,Xiangfu Road, Yuhua |
| District, Changsha City | |
| Hunan Province, P.R.C |
