Manufacturer for polymer gear pump - G Series Polymer Melts Gear Pump – Vowa

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Manufacturer for polymer gear pump - G Series Polymer Melts Gear Pump – Vowa Detail:

G series melt gear pump is especially suitable for high temperature and high viscosity polymer melt reaction transportation requiring high output pressure, such as resin, chemical fiber and other industries. It is generally installed in the lower part of the reactor to make feed pump. This series of melt gear pumps have good self-priming performance, and can be used for conveying and pressurizing polymer materials under vacuum reaction conditions.
The main materials that can be transported by melt gear pump are as follows:
polymer melt
PET   PBT   PTT
PA6  PA66  PA12
PE   LDPE   LLDPE   HDPE   HMWPE
PP   EVA   PB
PB   PS  HIPS   ABS   SAN
PC  PEK   PMMA  POM
TPU   PLA PBS
　Other stock solutions, solutions, glues, oligomers, prepolymers, etc. in the polymer material industry;
It can also be used to transport hot melt adhesives, asphalt, paints, adhesives, pharmaceuticals, food, grease, fuels, oils, dyes, coatings, lubricants, polyols and other materials that do not contain particulate impurities.
Technical data:
　 Viscosity ： 1～30，000Pa•s （1,000～30,000,000cP）
Suction side pressure ： vacuum（-0.05～-0.09MPa）～4MPa
　Discharge side pressure ： 0～35MPa
　   Differential pressure ： 25MPa
　 Temperature ： ≤350℃
　 Heating ： Hot coal heating
　   HT medium pressure ： ≤1.6MPa
Installation method
G series melt gear pumps are generally installed at the bottom of the reactor and are driven by a motor + reducer + universal coupling. The melt gear pump is a positive displacement forced delivery pump. The pump output flow can be adjusted by adjusting the pump speed. It is recommended Using frequency conversion speed regulation, can realize the nearly linear flow output of the gear pump.
Main structure of gear pump：

Rotor type: helical or spur gear
Heating method: hot coal heating
Sealing structure:
■ Dynamic melt seal + packing seal
■ Mechanical seal
■ Dynamic seal with cooling melt
■ High temperature resistant packing seal　　
Main structural materials of melt gear pump:
　　Pump housing: stainless steel/alloy steel/corrosion-resistant alloy
　　Gear: Nitrided steel/tool steel/stainless steel + coating/corrosion resistant alloy
　　 bearing: tool steel/copper alloy/stainless steel + coating/corrosion resistant alloyG
Pump size and Technical data

Model	cc/r	Inlet Pres. MPa	Outlet pres. MPa	Max. flow rate m³/h				Temp
				Low viscosity material	Medium viscosity material	High viscosity material	Ultra high viscosity material
				＜50Pa.s	50～200 Pa.s	200～2000 Pa.s	＞2000Pa.s
G-10	10	Vacuum -0.09～4.0	≤35.0	0.081	0.054	0.038	0.024	≤350℃
G-20	20			0.162	0.108	0.076	0.049
G-32	32			0.259	0.173	0.121	0.078
G-50	50			0.405	0.270	0.189	0.122
G-75	75			0.527	0.365	0.243	0.162
G-100	100			0.702	0.486	0.324	0.216
G-160	160			1.123	0.778	0.518	0.346
G-200	200			1.404	0.972	0.648	0.432
G-250	250			1.620	1.080	0.675	0.473
Please consult with the manufacturers for the bigger or lower specification
The series of pump can be provided in jacket-free type, such as T-G-xxx

The flow rate of the melt gear pump is related to the working speed, material viscosity, and working pressure. Please consult the manufacturer for specific selection.

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