Benpac Corporation

26/09/2022

Coiling a dead body is one of the most prominent and successful way of bringing your dead fridge back to life. Only compressors will be changed time to time. It Isa guarantee service.

18/09/2022

We are buying and repairs fault fridges. Inbox us we will call you

14/09/2022

We had good service Kitwe residents who requested our service.
Here we come Chingola

14/09/2022

07/09/2022

R134A GAS
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It is called 1,1,1,2-Tetrafluoroethane or Hydrofluorocarbon (HFC). It is Haloalkane refrigerant with Thermodynamic properties similar to Dichlorodifluoromathane but with insignificant ozone depletion potential and a lower 100 year global warning potential.
It has formular CF3CH2F and a boiling point of -26.3°C at atmospheric pressure.

PROPERTIES
Chemical Formula: C2H2F4
Molar Mass: 102.032g/Mol
Appearance: Colorless
Density: 0.00425g/cm3, gas.
Melting point: -103.3°C
Boiling Point: -26.3°C
Solubility in water: 0.15 wt%

1,1,1,2-Tetrafluoroethane gas is used primarily as a hight temperature refrigerant for domestic Refrigerators and Automobile air conditioner. 1,1,1,2-Tetrafluoroethane is also considered as an organic solvent, both in liquid and supercritical fluid.

PRODUCTION
1,1,1,2-Tetrafluoroethane is typically made by reacting Trichloroetyylene with Hydrogen Fluoride.
CHCL=CCL2+4HF --->CF3CH2+3HCL.
It reacts with Butyllithium to give Trifluorovinyllitguim.
CF3CH2F+2BULi----->CF2=CFLi+LiF+2BULi.

SAFETY
Mixture with air of the gas 1,1,1,2-Tetrafluoroethane are not flammable at atmospheric pressure and Temperatures up to 100°C. However, mixtures with high concentration of air at elavated pressure and or temperature can be ignited. When flames contact 1,1,1,2-Tetrafluoroethane or any hot surfaces in excess of 250°C may cause v***r decomposition and the emission of toxic gasses including Hydrogen fluoride and carbonyfluoride. However the decomposition temperature has been reported as above 370°C.

Compressors with R134A is one of the strongest. Due to its properties, it allows the compressor to work little slower and preserve it's life span.

05/09/2022

COPPERBELT RESIDENTS
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To our followers within copperbelt province, Today we in Mufulira offering the following services:
Regasing (K280)
Checking the problem: Free.
Replacing Compressor: K600, if you buy compressor from us it's free.
Leakage mending: Free just pay for gas.
Call us, we will be there shortly
0766829883

04/09/2022

REFRIGERATION GAS
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There are many types of gas. Today we will talk about one of the common used R600a

R600a
Isobutane which is also known as Ibutane 2-methelpropane or methelpropane is a CHEMICAL COMPANY with molecular formula HC(H3) 3. It is an isomers of butane. Isobutane is colorless, Odorless gas. It is the simplest Alkan with tertiary Carbon atom. Isobutane is used as a precursor molecules.

PROPERTIES OF ISOBUTANE R600A.
Molecular mass: 58.124g Mol-1
Appearance: Colorless gas
Odor: Odorless
Density: 5.57kg/m3 (at 15°C)
Melting point: -159.42°C
Boiling Point: -11.7°C
Solubility in water: 48.9mg.l-1 (at 25°C)
V***r pressure: 3.1atm (310kpa) 21°C
Conjugate acid: Isobutane
Magnetic susceptible: -51.7.10-6cm3/Mol

THERMOCHEMISTRY OF R600A
Heat capacity: 96.65jk/Mol
Std enthalpy of formation: -134.8
Std enthalpy of combustion: 2.8695

HAZARDS
Signal word: DANGER
Hazard statement: H220
Precautionary statement: P210
Fire Diamond: NFPa704: 140
Flash point: -83°C
Auto ignition temperature: 460°C
Explosive Limits: 1.4-8.3%
PEl (permissible) None
REL (recommended):TwA 1900mg/m3
Immediate danger: ND

From this information above, we see that R600a is highly recommended to refill in refrigerant with less compression force.
Due to its highly explosive degree, it can used in the following compressors:
a) 1/10 : 220 to 240 volts (43,598 hp)
b) 1/8: 220 to 250 volts (55,997mhp)
c) 1/6: 220 to 240 volts (83,475mlhp)
d) 1/5: 220 to 240 volts ( 100,476mthp)

04/09/2022

PROMOTION
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We are offering service promotion to copperbelt residents. Those who want their fridge to be repaired, we have reduced prices:
》Regasing was K650 but now K300
》Compressor fitting was K900 but now K550
CONTACT US ON
0766829883

01/09/2022

In stock we have the following Fridge Compressors

> 1/8 at K1500
> 1/6 at K1700
> 1/5 at K1900
> 1/4 at K2200
Fitting price if you buy from us is Free, you only pay for gas which is K250.
We go anywhere where our services are needed.
Call 0766829883

29/08/2022

Refrigeration compressor
========= = = = = = = = =
The compressor is the pump that enables the flow of the refrigerant. It works by increasing the pressure of v***rized refrigerant.
There are four types of compressors. We will talk about it one by one in the next articles.