Centrifugal Chemical Vertical Inline/Pipeline Circulating Water Pump

Model NO.: GFL
Position of Pump Shaft: Vertical Pump
Pump Casing Combined: Radial Split Casing
Mounting Height: Suction Centrifugal
Impeller: Closed
Usage: Pump, Pumps, Circulating Pump, Inline Pump
Materials: SS304, SS316, SS316L, Titanium, Monel, 2205, CD4MCU
Manufacturer Level: Top Level
Shaft Sealing: Mechanical Seal and Packing
Pump Arrangement: Horizontal
Pump Transmission: Direct Coupled, Gear Box, V-Belts, Universal Joint
Flange Standard: Customized
Motor Brand: ABB, Siemens or Reputed Chinese Brands
Pump Bearing: SKF, NSK or Reputed Chinese Brands
Trademark: Gaofeng
Transport Package: Standard Seaworthy Packing
Specification: Customized
Origin: China
HS Code: 8413709990
Brief Introduction:

The GFL series is a maintenance-free vertical centrifugal pump with a single-stage, single-suction design. It is an upgraded version of the ISG series, manufactured according to ISO 2858 standards, resulting in significantly reduced noise levels. The pump is designed for long-term use without maintenance, and its lifespan has been greatly extended. Additionally, based on different temperature and environmental conditions, there are models for hot water and low-noise applications, which comply with the updated national standard JB/T 53058-93.

Parameters:
Flow Rate: Q=1.5~2450m3/h
Total Head: H=8~150m
Suction Head: H=5~7m
Speed: n=1450rpm/2950rpm
Specific Gravity: γ ≤1.1
Temperature: T=-0~120ºC
Pump Diameter: 40~500mm

Features:
  1. Complies with JB/T 53058-93 requirements, adopts performance parameters of IS centrifugal pumps, with vertical structure.
  2. Advanced hydraulic model, high efficiency, smooth operation, no leakage, and low noise.
  3. Updated and unique design, requires less installation space, saving 40%~60% on site construction investment.
  4. Pump shaft and motor shaft are 100% aligned; impeller undergoes strict static and dynamic balance testing, ensuring no abnormal vibration during high-speed operation.
  5. Maintenance-free mechanical seal and titanium/tungsten carbide shaft, excellent sealing performance, non-breakdown operation, and long service life.
  6. Available in as many as 219 specifications, making it an ideal replacement for the old ISG series vertical centrifugal pump.
Structure:
  1. Vertical structure, 100% aligned shaft ensures smooth operation and low noise.
  2. Impeller directly mounted on the extended motor shaft, reducing pump size.
  3. Pump inlet and outlet flanges share the same dimension and are horizontally aligned in a straight line, allowing direct pipeline installation for convenient piping arrangement.
  4. Chromed surface shaft extends its service life.
  5. Eliminates traditional shaft sealing, eliminating the possibility of leakage.
  6. Can be operated in series or parallel connections based on requirements.
  7. Can be installed vertically or horizontally depending on piping arrangement needs.

Structure drawing is as below
Centrifugal Chemical Vertical Inline/Pipeline Circulating Water Pump
1. pump body 2. impeller 3. impeller nut 4. bleeder Valve 5. plug 6. pump cover 7. mechanical seal 8. Retaining ring 9. electric motor

Configuration:
Centrifugal Chemical Vertical Inline/Pipeline Circulating Water Pump

Application:
  1. Water supply to water tanks in high-rise buildings and fire pumps.
  2. Boiler feed pump, circulation pump for boiler.
  3. Cold and hot water circulation pump for air conditioning systems.
  4. Hot water pump for production facilities.
Centrifugal Chemical Vertical Inline/Pipeline Circulating Water Pump



Csaing and tubing pipe

Coupling

Tubing and Casing couplings are the joining of two short length pipe, mainly used for the connection and repair of oil pipe and downhole tools

Tubing and couplings thread types : Non-upset thread(NU), External- upset thread(EU);

Casing and couplings thread types: Long-round thread(LC), Short-round thread(SC), buttress thread(BC)

Grade: K55,J55,N80-1,N80Q,L80-1,P110,etc.

Pup joint

Tubing and casing pup joints are machined according to the latest version of API SPEC 5CT. The steel grade includes J55,K55,N80-1,N80Q,L80-1,P110,etc. There are two types of thread widely used in tubing pup joint namely Non-upset thread(NU), External- upset thread(EU);

Casing and couplings thread types: Long-round thread(LC), Short-round thread(SC), buttress thread(BC).

Our testing and inspection method system is complete, using a whole set of thread instrument to inspect taper, pitch, tooth, height, tooth type,etc. The products have passed the identification of china petroleum pipeline. Quality supervision ,inspection and testing center and gained the unanimous praise from the customers.

crossover

Crossover coupling any size ,length ,grade and weight is available on customer request.

Steel Grade,Steel Oil Casing Collar,Joint Oil Casing Collar,Pup Joint Oil Casing Collar

Henan Dongfanglong Machine Manufacture Co., Ltd , https://www.dfloilm.com

August 10, 2025