Архив рубрики: GREASES

VNIINP-248

Electrocontact greases, GREASES

Grease VNIINP-248 (TOR 38.101643-76) has a soft consistency, high resistivity, good frost-, heat-, water resistance. Operating efficiency at temperatures ranging from -60 °C to +200 °C.

Applications: sliding electrical contacts of wire-wound-type resistors.

Appearance and color: —
Effective viscosity, Pa•s, at 0 °C, not more than: —
Effective viscosity, Pa•s, at -20 °C, not more than: —
Breaking strength at 20 °С, Pa•s, not less than: 80-250
Dropping point, °С, not below than: —
Colloid stability under load of 300 g, %, not more than: 8
The content of free alkali in terms of NaOH,%, not more than: —
Penetration at 25 °C, mm, 10-1: —
Evaporation at 200 °C within 1 hour, %, not more than: —
Mass fraction of free alkali, %, not more than: —

VNIINP-502

Electrocontact greases, GREASES

Grease VNIINP-502 (TOR 38.101771-79) has high water resistance, adhesion, mechanical stability and conservation properties, electrical contact.
Operating efficiency at temperatures ranging from -40 °C to +100 °C.
Applications: low-current electrical contacts of modular switches. The substitute product — KSB.

Appearance and color: —
Effective viscosity, Pa•s, at 20 °C, not more than: 85-100
Effective viscosity, Pa•s, at -40 °C, not more than: —
Breaking strength at 20 °С, Pa•s, not less than: 350-470
Dropping point, °С, not below than: —
Colloid stability under load, %, not more than: 7
The content of free alkali in terms of NaOH,%, not more than: —
Penetration at 25 °C, mm, 10-1: 265-295
Evaporation at 150 °C, %, not more than: —

VNIINP-263

GREASES, Jointing pastes

Grease VNIINP-263 (GOST 16862-71) is petroleum oil, thickened with modified silica gel, contains multi-functional additive.
The grease is water and freeze resistant, dries up at a temperature higher than +100 °C; provides sealing of the threaded connection at normal pressure and low vacuum. Operating efficiency at temperatures ranging from -50 °C to +100 °C.
Applications: provides sealing of threaded connections, facilitates the threads screwing in and screwing out.
Substitute product: R-416.

Appearance and color: —
Effective viscosity, Pa•s, at 20 °C, not more than: 50
Effective viscosity, Pa•s, at -40 °C, not more than: —
Breaking strength at 20 °С, Pa•s, not less than: 160
Dropping point, °С, not below than: —
Colloid stability under load of 300 g, %, not more than: 18
The content of free alkali in terms of NaOH,%, not more than: —
Penetration at 25 °C, mm, 10-1: 300-340
Evaporation at 150 °C within 1 hour, %, not more than: —

For gas valves

GREASES, Jointing pastes

Grease for gas valves (TOR 38.101316-78) is a sealing (thread lubricant) grease; castor oil thickened with hydrated calcium soap of castor oil acids.
Application requirements: the grease is not soluble in petroleum products, very soluble in alcohol and oxygenated solvents.
Operating efficiency at temperatures ranging from 0 °C to +50 °C.
Applications: gas lines and distribution stations fittings at a pressure of up to 5 MPa.

Appearance and color: Homogeneous ointment from yellow to black color.
Effective viscosity, Pa•s, at 0 °C, not more than: —
Effective viscosity, Pa•s, at -40 °C, not more than: —
Breaking strength at 20 °С, Pa•s, not less than: —
Dropping point, °С, not below than: 60
Colloid stability under load, %, not more than: —
The content of free alkali in terms of NaOH,%, not more than: —
Penetration at 25 °C, mm, 10-1: 35-70
Water content, %, not more than: 3.5
Evaporation at 150 °C within 1 hour,%, not more than: —

Nasosnaya

GREASES, Jointing pastes

Grease Nasosnaya (TOR 38.101311-78)

Applications: packing seals of high pressure drilling rigs oil and mud pumps.

Application requirements: Water-resistant, insoluble in hydrocarbons, alcohols, glycerine, etc. Operating efficiency at temperatures ranging from -20 °C to 120 °C.

Composition: oxygenated castor oil, thickened with colloidal graphite preparation; contains lithium stearate as a structure stabilizing agent.