BARVENT IMPEX LLC specializes in an integrated supply of industrial organizations consumables and spare parts for equipment. We have products of both domestic and foreign production. Thanks to the wide range (more than 1000 types) of industrial rubber products (IRPs), large and favorable cooperation with the leading foreign producers and experience, our company takes special positions in this sphere.
BARVENT IMPEX LLC offers a wide range of products:
— High pressure hoses (HPH);
— Belts: V-belts of normal section;
— Rubber hoses for various applications: pressure , corrugated pressure-suction, gas welding (propane, petrol-resistant, oxygen), drilling;
— Conveyor belts, conveyor;
— Technical plates: TMKSCH (heat and frost acid and alkali resistant), MBS (oil and petrol resistant).
- Drive v-belts of normal sections, gost 1284.1-89, gost 1284.2-89
- Fan V-belts GOST 5813-93
- Rubber pressure hoses with textile skeleton gost 18698-79 or tu 38-605157-90
- Rubber pressure hoses with thread strengthening GOST 10362-76
- Hoses for liquefied petroleum gases TU 38-605-180-92
- Hoses for machines for making ammonia in the soil tu 38-105620-86
- Long lightweight rubber pressure hoses with thread skeleton
- Pressure-suction hoses GOST 5398-76
- Hoses for gas welding and metal cutting GOST 9356-75
- High pressure hoses with metallic braid GOST 6286-73/DIN EN 853
- Technical plates
- Conveyor belts (conveyor)
DRIVE V-BELTS OF NORMAL SECTIONS, GOST 1284.1-89, GOST 1284.2-89
There are three main types of V-belts:
— ventilation belts;
— drive belts of normal section;
— wide belts (variator).
W — the width of the larger base of the belt, mm;
H — belt height, mm;
а — belt wedge angle equal to (40 ±1)º.
Symbol: Z(O), A(A), B(B), C(В), D(E), E(D)
H (B)-1180 GOST 1284.1-89, where:
H (B)- belt profile,
1180 — estimated length, mm.
FAN V-BELTS GOST-5813-93
They are intended for transmission of movement from motor shaft to auxiliary units. They operate at the temperature t° from -40°С up to +60°С.
Depending on applied materials, fan belts can be manufactured in two classes: 1-with polyamide cord, 2-with polyester cord.
Traction Layer (rubber layer)
Elastic layer (rubber).
Support layer (cord for belts of cord construction ).
Support layer (fabric carcass for belts with fabric-cord construction).
Compression layer (consists of rubber).
Depending on ratio of width and height , fan belts are produced of two types:: I — narrow sectional , II — normal sectional.
Fan belts consist of supporting layer on the basis of cords, made of chemical fabric, rubber and wrapping fabric.
DESIGNATION OF TYPICAL SIZE: FAN BELT 11Х10-1500 GOST 5813-93, WHERE:
10 — section height of the belt (mm);
1500 — estimated belt length (mm);
bp — estimated belt width, mm (cross-sectional width of the belt which is under tension at a neutral line);
b0 — width of the larger base of the belt, mm;
h — height of the belt, mm;
a —wedge angle of the belt, equal to 40°.
|Belt types||Profile||Width of the larger base, mm.||Estimated length, bр, mm.||Height, h, mm.||Wedge angle of the belt, degree.|
|SPB (14*13; УВ)||17||14||13||40|
Teeth sizes should conform to the ones, presented in the table.
|Parameters||Belt sections (bp x h) mm.|
|11х10; 14х10; 16х11||14х13; 19х12,5; 21х14|
|Depth of the groove||4,0±1||5,0±1|
|Width of the groove||from 2 to 5||from 2 to 5|
|Step of the tooth||from 8 to 16||from 8 to 16|
Rubber pressure hoses with textile skeleton gost 18698-79 or tu 38-605157-90
B (I) class – gasoline, kerosene, mineral oil. Efficient at temperature from -35 C to +70 C.
V (II) class – technical water, solutions of inorganic acids and alkalis. Efficient at temperature up to +50 C.
(IV) class G – air, carbon dioxide, nitrogen and other inert gases. Efficient at temperature from -35 C to +50 C.
P (VII) class – food (alcohol, wine, milk, drinking water). Efficient at temperature up to +50 C.
SH (VIII) class – abrasive materials. Efficient at temperature from -35 C to +50 C.
Steam-1 (X), Steam-2(X) classes – saturated steam. Efficient at temperature +143 C/ 175 C.
(I) hose B – 0,63 – 50 – 64 by GOST 18698-79 or TU 38-605157-90, where:
B (I) – class;
0,63 – operating pressure (MPa);
50 – inner diameter (mm);
64 – outer diameter (mm)
RUBBER PRESSURE HOSES WITH THREAD STRENGTHENING GOST 10362-76
Rubber hose 20×30-1,6 GOST 10362-76, where:
20 — inner diameter (mm);
30 — outer diameter (mm);
1,6 — working pressure (MPa).
HOSES FOR LIQUEFIED PETROLEUM GASES TU 38-605-180-92
HOSES FOR MACHINES FOR MAKING AMMONIA IN THE SOIL TU 38-105620-86
LONG LIGHTWEIGHT RUBBER PRESSURE HOSES WITH THREAD SKELETON
16 — inner diameter (mm);
VG — hose type (for hot water);
1.0 — operating pressure (MPa).
PRESSURE-SUCTION HOSES GOST 5398-76
II – pumping suction hose (pressure parameters: vacuum — 0,08 MPa (0,athm), head — 0,3; 0,5 and 1,0 MPa (3; 5; and 1,0 athm)).
HOSE G – 2 – 25 – 10 GOST 5398-76, WHERE:
2 – group (for example, pressure-suction hoses);
25 – inner diameter (mm);
10 – working pressure (kgs/cm2).
0.3 MPa (3 kgf/cm2) – for hoses with an internal diameter of up to 75 mm;
0.2 MPa (2 kgf/cm2) – for hoses with an internal diameter of more than 75 mm
Hoses of B, V, P, KSCH classes shall have not less than threefold safety factor (3P) at break hydraulic pressure.
HOSES FOR GAS WELDING AND METAL CUTTING GOST 9356-75
Hoses for gas welding and metal cutting are divided into 3 classes:
II class – for the supply of liquid fuels: gasoline, kerosene or mixtures thereof at a pressure of 0.63 MPa;
III class – for the supply of oxygen at a pressure of 2.0 MPa.
from -55°С up to +70°С – for cold climate.
Margin oxygen hoses: not less than 3P.
50 / 100
75 / 100
50 / 100
75 / 100
50 / 100
75 / 100
HOSE I – 12 – 0,63 GOST 9356-75, WHERE:
12 – inner diameter (mm);
0,63 – operating pressure (MPa).
HIGH PRESSURE HOSES WITH METALLIC BRAID GOST 6286-73/DIN EN 853
A group - with the use of a wire with a breaking force not less than 15,0 kg.
B group – with the use of wire with a breaking force not less than 17.5 kg.
Z, V groups – wire brass plated surface with a breaking force not less than 20.0 kg.
Safety margin of tensile strength by hydraulic pressure: 3Р – for hoses of groups А and B ;4Р – for hoses of group Z.
TECHNICAL CHARACTERISTICS OF THE HOSE ACCORDING TO THE GOST 6286-73.
Type I — with one metal braid .
Type II — with two metal braids.
TECHNICAL CHARACTERISTICS OF THE HOSE ACCORDING TO VRT/DIN EN 853:
DIN EN 853, 1 SN Type — Hoses with one layer of steel wire braid and a thinner outer layer of rubber are specially designed for use without turning before crimping.
DIN EN 853, 2 ST Type — Hoses with two layers of steel wire braid.
DIN EN 853, 2 SN Type — Hoses with two layers of steel wire braiding and a thinner outer layer of rubber are specially designed for use without turning before crimping.
|Hose groups: А, B, V, Z.
A group – with the use of a wire with a breaking force of not less than 15,0 kg.
B group – with the use of wire with a breaking force of not less than 17.5 kg.
Z, V groups – wire brass plated surface with a breaking force not less than 20.0 kg.
The resistance to rupture by hydraulic pressure:
3Р – for hoses of groups A and B B;
4Р – for hoses group Z.
Technical plates are produced in a large range of sizes, cutting, gluing, covering with an adhesive layer of one or both sides of the technical plate, depending on the need and requirements of the technological process
Different categories of technical plates are formed depending on the following characteristics:
Conditional tensile strength (MPa, at least);
Elongation on failure (%, at least);
Absolute deformation undercompression;
Aging resistance at an open air;
Ozone resistance ;
Oil – resisting properties ;
Resistance to UV radiation.
MOLDED SHEETS FOR GENERAL PURPOSE:
HCAAR molded sheet SBR 16535;
HCAAR molded sheet with adhesive coat SBR 76515 with ply.
GENERAL PURPOSE MOLDED SHEETS WITH POSSIBILITY OF OUTDOOR APPLICATION:
Cellular rubber EPDM/CR 6230;
Cellular molded sheet 2015;
Hypalon molded sheet Hypalon 46048;
Molded sheet CR 25035 Chloroprene rubber;
Molded sheet CR 26034 Chloroprene rubber;
Molded sheet CR 27050 Chloroprene rubber;
Molded sheet EPDM 66020.
WEAR-RESISTANT MOLDED SHEETS:
Hypalon molded sheet Hypalon 46048;
Grey double resin molded sheet 14020;
Double resin molded sheet 14010.
OIL-RESISTANT MOLDED SHEETS:
Acrylonitirle butadiene oil-resistant molded sheet NBR 34035;
Acrylonitirle butadiene oil-resistant molded sheet NBR 34630;
Acrylonitirle butadiene oil-resistant molded sheet NBR 36535.
HEAT-RESISTANT MOLDED SHEETS:
Red cellular silicon 86017;
Cellular silicon 8630;
Cellular silicon TR 86015;
Molded sheet VITON, Viton 97519;
Hypalon molded sheet, Hypalon 46048.
RUBBER, USED IN FOOD PROCESSING INDUSTRY:
White resin molded sheet FDA 16063.
INTERPRETATION OF MARKING OF IMPORTED MOLDED SHEETS:
NBR — rubber, resistant to oils and petroleum products;
NR — technical rubber for contact with edible products;
EPDM — rubber, resistant to impact of oxygen, ozone and high temperatures;
CR — rubber, resistant to impact of acids, alkaline and atmospheric impacts.
MOLDED SHEETS SBR AND NBR
MOLDED SHEETS EPDM
MOLDED SHEETS NR
MOLDED SHEETS СR
FLOOR COVERING. RUBBER FLOOR.
Floor coverings for production premises should satisfy the following requirements :
resistance to loads;
resistance to harmful impacts.
It is necessary to determine which agents would be in contact with floor, which humidity is in premises, which power loads would impact the floor covering.
RUBBER-BASED FLOOR COVERING
— rubber-based carpeting;
— carpet flooring of crumb rubber.
Rubber-based carpet flooring is used for commercial purposes.
Floor covering on the basis of crumb rubber can be of two types:
– In the form of tiles;
– In the form of a roll.
At its manufacture is used crumb rubber of about 1.5 -5 mm, and polyurethane as binding composition. Sometimes into the mixture is added synthetic rubber EPDM.
Rubber floor coating in rolls has a number of advantages:
high wear hardness;
resistance to aggressive environments.
Covering of rubber is widely used for equipment of child and sports grounds, for loor covering in garage. Thickness of the roll varies from 4 mm to 40 mm. Roll width is of 1.2 meters.
RUBBER FLOOR COVERING FOR GARAGE
If the floor, made of segments, would be damaged, it is enough to replace only one damaged element. However, if there would be damaged the floor made of materials in form of rolls, it would be necessary to replace the whole roll.
Previously such coverings were made of synthetic rubber. Modern rubber garage floor, which is manufactured from rubber crumbs, has higher wear hardness and lower cost. This is why rubber floor coverings in rolls are the optimal material for floor covering in garage.
We offer rubber floor coverings for different purposes.
Rubber coverings for sports grounds (open air, indoors) , stadiums.
Rubber floor coverings for children grounds.
Rubber floor coverings for livestock breeding (livestock mates).
Rubber floor covering in rolls “Elochka”, “Pyatachok”.
Grooved rubber track.
|Rubber floor coverings (tile)||Rubber tile flooring are intended for equipment of open and closed areas, sports facilities, playing fields, garden paths, Flooring in garages, in the premises for livestock|
|Rubber covering||Rubber floor coverings (in rolls)||
Rubber rolled coverings are used as a floor covering in interiors of various transport, including buses, trolleybuses, trams. Durable. It can be used in public places: waiting rooms, on the platforms, shopping centers, cafes, airports, railway stations, on ships, near building entrances, staircases, halls, etc.
ADVANTAGES OF RUBBER FLOOR COVERINGS:
Simplicity of laying and maintenance.
Rubber covering looks beautiful and original .
Good dampening properties of sports rubber covering.
Rubber coverings for sports and children grounds is injury-safe.
It doesn’t have joints and seams.
Good sound absorbing properties.
Wouldn’t be damaged by fallen cigarette. Rubber covering is resistant to effects of petrol, engine oil, detergents.
Easily washed by a jet of plain water.
Rubber covering is antistatic.
It does not absorb odors.
Rubber covering is resistant to animal secretions.
RUBBER COVERING IN ROLLS:
Width – 1000-1500 mm.
Weight 1 m²
of the covering: 3,0 mm — 3,5 – 4 kr.
There are approximately 10-20 running meters in one roll .
Rubber covering in rolls is resistant to: petroleum, engine oil, dissolvents, diluted acids, alkaline.
Rubber covering in rolls is applied as floor covering in interiors of various transport, including buses, trolleybuses, trams. It can be used in public places: waiting rooms, on the platforms, shopping centers, cafes, airports, railway stations, on ships, at the entrances to buildings, stairways, hallways, etc. Rubber covering in rolls can be used as industrial rubber covering, as a rubber covering for a garage. It is used as a rubber covering for livestock.
MOLDED SHEET SBR AND NBR
They are used for manufacturing of rubber products, applied for sealing of static joints, prevention of friction between metallic surfaces, for perception of isolated impact loads, and also as gaskets and coatings. They are also used as damping elements (baffle plates, rubber bumpers and etc. ) for isolation of vibrations from industrial equipment, for utility facilities, as sealing elements (gaskets) for sewerage and water supply equipment
SBR molded sheets have shown good results at exploitation in road and snow-removal equipment. Convenient pattern cutting of SBR sheet 1000х1000 mm for thickness 40 or 50 mm, allows to cut the necessary size 1000*250 mm and get 4 cuttings without cutting losses from one sheet. Degree of hardness 65+5 point by Shor A scale, is conforming intermediate value of hardness degree (by GOST 7338-90 the average hardness degree is 50-65 by Shor A scale, hard — 65-85 points by Shor A scale), which have a positive influence on rubber wear during the period of exploitation at road equipment. Application of SBR and NBR molded sheets as gasket and cover material, also yield excellent results. Sizes of sheets and quality characteristics are presented in tables below.
Color of the sheet — black, surface — smooth, borders – even.
CONVEYOR BELTS (CONVEYOR)
Conveyor belt is widely used in the food, mining and woodworking industries, as well as printing. With the help of a conveyor belt, it is possible to move solid, loose and lump objects that need to be moved from one section of the shop to another, or to pass through the next stages of the production cycle.
The width of the conveyor belt, indicated in millimeters. The degree of strength depends on the number of layers of fabric (the more layers, the higher the strength of the belt). Often the thickness of the belt is indicated in millimeters, given that the thickness of 1 fabric spacer is about 1 mm. The upper and lower surface of the conveyor belt has a rubber layer — cover. The cover can be both working and non-working side of the belt and have a different thickness.
BKNL-65 fabric — polyester/cotton, rated tensile strength of traction spacer 55 N/mm.
TK-100 fabric — synthetic, rated tensile strength of the traction spacer 100 N/mm
TK – type of carcass fabrics;
100 – load at 1 m2, kg;
650 – belt width, mm;
6 – thickness of the working cover, mm;
5 – number of spacers;
12 – total belt thickness, mm;
width from 100 to 1600 mm;
length up to 200 meters;
thickness from 5 to 30 mm.
for heavy operating conditions;
for medium operating conditions;
for easy operating conditions.