Technology

Classification, working priciple and application of vacuum pump

19/08/2019

Vacuum pump is a equipment which is specialized device to remove gas, liquid, steam from the limited and closed space to create a vacuum environment or almost near vacuum.

How to find the causes and repair water chiller

27/12/2018

In the process of operation and use of air conditioners in general and chillers in particular, there are many incidents that make users face with many difficulties. In this article we provide readers with the most basic knowledge to determine the causes, phenomena and remedies when air conditioning (chiller) is in trouble.To help you deal with problems during the machine operation and use, we would like to introduce some of the following common problems:

Micom time setting and troubleshooting of the GRH3 air compressor

29/07/2019

Micom time setting and troubleshooting of the GRH3 air compressor

Precaution before operation of Handsome II air compressor

31/07/2019

Precaution before operation of Handsome II air compressor

Hitachi air compressor maintenance

07/12/2018

Minh Phu Machinery and Technical Services Co., Ltd specializes in repair, maintenance and supply of parts for Hitachi air compressors with high quality, reliability and long-term warranty. Please call Minh Phu 0919232826 for more details. Belows are some pictures of repair and maintenance Hitachi air compressors.

Sell Corena S3R air compressor oil

Wednesday - 19/12/2018 04:25

1. High-quality screw air compressor and vane air compressor oil.

Shell Corena S3R is high-quality compressor oil, designed to provide high lubrication of screw type and vane air compressors. This oil is used for advanced additive system that provides superior protection for compressors operating up to 20 bar and 100ºC discharge temperature with up to 6000 hours maintenance cycle.

dau may nen khi shell corena s3 rj 32,Sell Corena S3R air compressor oil — Sell Corena S3R air compressor oil

Dầu Shell Corena S3 R

2. Long life span - saving maintenance cost.

Shell Corena S3 R has mantenance cycle up to 6000 hours ( permitted by manufactures) even when it is operated at 100ºC ( maximum discharg temperature).

Benefits :
-Avoid the formation of condensed carbon in vane air compressors.
-Avoid the formation of condenser in rotary parts in screw air compressor.
-Avoid the decomposition caused bt temperature and condenser to maintain the clealines of surface especially in oil/ air filter system.
Maintenance cycle is depended on the amount of intake air, operating cycle and environmental condition.To very hot and humid climates in Asia Pacific, it is recommended to reduce the oil change cycle (refer to the original manufacturer's proposal).
Excellent anti-wear properties
Applied sucessfully for many years, Shell Corena S3 R is well-protected metal surface from the corrosion and abrasion.This oil contains a high-quality non-ash anti-wear additive system to help extend life in key parts such as bearings and gears.
Maintenanace the effect of system
Dischargeing air and anti-foarming are key features in compressor oil, ensuring good and continous operation air compression. Shell Corena S3 R is designed to discharge air quickily without creating excessive foam to operate continously, even in cycle. In addition, Shell Corena S3 R has water separation feature to ensure efficient and continuous air compressor operation even when water is available.

Shell Corena S3 R air compressor oil

3. UASGE .
-Vane air cmpressor
Shell Corena S3 R is suitable for oil- injected or oil-filled vane air compressor operating pressure up to 10 bar and air discharge temperature up to 100ºC.
-Screw air cocmpressor
Shell Corena S3 R is suitable for 2 stage piston air compressor or 1 oil-filled stage operating pressur at 20 bar and air discharge temperature up to 100ºC t.
-Technical standards and approvals
Shell Corena S3 R qualified: ISO6743-3A-DAJ
-Safe and heath
Contact to Shell for more documents and informations.
-Compatibility with Sealing Materials

Shell Corena S3 R oil is compatible with sealing materials used mineral oil .

-Environment protection
Used oil had better to be taken to the specificed points.

Shell Corena S3 R			32	46	68
Viscosity stage ISO		ISO 3448	32	46	68
kinematic viscosity		ASTM D445
+At 40⁰C	m/giây		32	46	68
+ At 100⁰C	m/giây		5.4	6.9	8.9
Proportion at 15⁰C	kq/m³	ASTM	864	868	873
Plash point COC	⁰C	ASTM D92	230	230	248
Air discharge	phút	ASTM	2	3	5
RPVOT	phút	ASTM	700	700	700
FZG	LS Không đạt	CEC-L-07-A-95	11	11	1
Melt point	⁰C	ASTM D97	-30	-30	-30
Water-separating capacity 54⁰C	phút	ASTM 1401	15	15	5