Fuel Oil Transfer Pump

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: 2GM
• Screw Number: Double Screw Pump
• Screw Suction Method: Double Suction
• Pump Shaft Position: Horizontal
• Performance: No Leak
• Application: Sewerage Treatment, Chemical, Fuel Oil Lubricating Oil
• Certification: ISO, RS, Rina, BV,etc
• Transport Package: Wooden Case
• Trademark: HG
• Origin: China
• HS Code: 8413604090

Product Description

China Huanggong Machinery Group Co.,Ltd Specialist in Pump industry for over 44 years
For technical information or inquiry, pls do not hesitate to contact us.

2GM twin screw pump is a kind of Positive Displacement Rotary Pump, which can handle the liquid with viscosity below 3000mm²/s(cSt). The pump consists of two spindles rotating in opposition. During pump's working, a pair of screws fixed on two shafts get in mesh and form seal cavity against pump's inner chamber. With rotating of two spindles, liquid in seal cavity moves axially and is transferred from inlet stably and continuously to outlet of the pump.

2G single-suction twin screw pump is designed with external bearing and pump's chamber is separated from bearing chamber by mechanical seal and framework oil seal, therefore which can transfer liquids with or without lubricity as well as liquids with high-viscosity. Material normally used for rotary ring and stationary ring of mechanical seal: TC(or ceramic) and Graphite.

Pump's spindle is made up of screws and separated shaft processed by high-strength alloy steel or stainless steel for meeting the working conditions upon big power and big torque. Different metals such as Nodular Cast Iron, Nitrided Steel and Stainless Steel are selected for screws to meet the requirement to transfer different liquids.
 
Timing gear is adopted to pass the power from driving shaft to driven shaft, which enables two spindles to rotate synchronously during their meshing, therefore low wear and big reliability.

Special construction is designed at pump's inlet to ensure uniform flow of the suctioned liquid and low pressure loss, therefore the pump has small NPSHr. And position of inlet and outlet can keep enough liquid inside the pump when it stops working, so the pump is good self-priming.
Wetted parts of the pump should be selected according the chemical property of the liquid to pump: for liquids without erosion or unclean liquids, to use general steel or iron; for liquids with erosion or clean liquids, to use suitable stainless steel; for explosive or flammable liquids, such as gasoline, toluene, to use bronze; for liquids with small solids, to use high-rigidity nitrided steel; for special requirement for material, please indicate when ordering.

A. Using range
Twin-screw pump can transfer various non-solid contained fluid medium or extremely high viscosity medium. They have wide availability and high reliability for lubricating or non lubricating medium, for corrosive medium or gas-liquid mixture.

SPECIFICATIONS FOR 2GM SERIES TWIN SCREW PUMP
2GM Series Twin screw pump	Capacity	m3/h	Max: 60
	Pressure/Head	bar	Max: 20
	Viscosity	cst	0.5-1500
	Speed	rpm	750-1500
	Temperature	ºC	-20-120
	Mounting	Horizontal
	Seal	Mechenical Seal

Medium: Various lubricating oil, fuel oil and sludge.

Certificate: ISO9001: 2000, CE, CCS, BV, NK, KR, ABS, RINA, GL, etc.
Construction: Horizontal, vertical, portable structure, heating chamber
Safety: Explosion-protection, water-protection, safety valve, alarming sensor.

B. Using field
1. Petrochemical Industry: Transfer pump for various lubricating oil, crude oil, residual oil, heavy oil, bitumen, diesel oil, gasoline etc.
2. Shipbuilding Industry: Transfer pump, cargo oil pump, booster pump, striping pump and engine lubricating pump for various fuel oil, lubricating oil, waste oil, bilge sludge and sea water etc.
3 Chemical Industry: Transfer pump for various acid, alkali and salt solution, resin, glycerin, olefin, polymers and various cosmetics emulsion.
4. Paint Industry: Transfer Pump for various printing ink, paint, oil paint, dope etc.
5. Food Industry: Transfer pump for various high-viscosity medium like alcohol, beverage, honey, sugar juice, tooth paste, milk, soy sauce, animal oil, vegetable and chocolate etc.
6. Saving & Transferring industry: Loading and unloading oil goods for oil station, ship and tanker.

C.     Features
1, The inlet-outlet civility adopts special design to make sure that enough medium is remained in the pump. Even when the medium in the suction pipe is all discharged, the pump still has very good self-suction performance.

2, The pump body adopts special-structure circular valve, which will open when the outlet pressure is higher than the working pressure. Then, some medium will back to the inlet of pump or saving can through this circular valve. Meanwhile, the pump can starts under full pressure situation thus greatly reduce the torque.

3, Use synchronizer gear to transfer toque from initiative screw to idler screw, which ensures no metal contact and power transmission between transferring elements. So the transferring elements have high reliability for any medium and the pump can free from damage of dry rotation in a short time.

4, When the pump is working, the meshing screws form a sealed civility in the pump body, following the rotary motion of the screws, the liquid in the sealed civility does axial motion with the sealed civility and transferred to the outlet of pump steadily and continuously. Because the capacity of the sealed civility never changes in the working pump, there will be no pulsation when the pump deliveries liquid.

5, The body of twin screw pump has several different heating structure plans for choice, to adapt to different medium under different temperature.