Mechanical seals and Operational capability support systems
for Oil & Gas industry



Single mechanical seals of TM series

Single mechanical seals of TM series

Single mechanical seals of TM series - applied in nonaggressive, nonexplosive and non-combustible liquids, witch leakage into the atmosphere is allowed with the regard to safety requirements. TMX-made with additional throttle bushing from the atmosphere side, that serves for leakage reduction in case of friction pair destruction.

Double mechanical seal of 2TM series

Double mechanical seal of 2TM series

Double mechanical seal of 2TM series - applied in case when a pumping agent (poisonous, radioactive, explosive and other types of liquids) leakage into the atmosphere is not permitted; even if a pumping agent has poor lubricity (gases, liquefied gases) or a pumping agent is heavily contaminated with abrasive inclusions (up to 25%) or have a possibility of coking, polymerization, crystallization, etc. 2TM(X)- made with cooling unit on shaft. Mechanical seals of 2TM(X) type are used together with heat exchanger BTN-12D-35K, SAPPD 1.1-7.5/2/35K.

Double tandem mechanical seal of 2TMT series

Double tandem mechanical seal of 2TM series

Double tandem mechanical seal of 2TMT series - applied in case where single seals can not be applied because of necessity to provide the required level of safety (hot oil, flammable and toxic liquids etc). 2TMTX- made with cooling unit on shaft. Mechanical seals of 2TM(X) type are used together with heat exchanger BTN-12T-35K.

Design:
  • hydraulically unloaded friction pair;
  • cartridge design;
  • springs are removed from the work area ( of a product);
  • additional throttle bushing.
Materials:
  • Friction pairs: silicon carbide, cemented carbide, siliconized graphite, carbon graphite sliding.
  • Secondary seals: rubber mixtures based on fluororubber, perfluororubber, ethylene propylene.
  • Base members: stainless steel 20X13,08X18N10T,10X17N13M2T,06XN28MDT.
Types of mechanicals seals
Type Temperature of pumping agent, °C Reservoir according to API 682 Application in pumps of types
TM, TMP
TMX		 From -30 to +100
To +200		 Plan 01, 02, 11, 12, 13, 21, 22, 31
32, 41		 NK, NKV, NPS, TSNS, ND
2TM
2TMX		 From -30 to +200
To +400		 Plan 53A, 53B, 53C, 54
2TMT, 
2TMTX		 From -30 to +100
To +200		 Plan 52


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Reamer mechanical seals UR series

Reamer mechanical seals UR series

Reamer mechanical seals UR series are designed for hermetization rotating shafts 25 mm diameter and 35 mm hydraulic protection of submersible electric centrifugal pumps oil production (ESP).

In accordance with: TU .U 31.1-05755855-003-2002.

Working surfaces of friction couples are made of a material "relit" and a copper bonding by sintering in a vacuum furnace.

Seals provide sealing at a pressure of 0.25 to 0.30 MPa. shaft speed - 3000 r / min.

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Heat exchanger tank BT-12T-15K

Heat exchanger tank BT-12T-15K

Heat exchanger tank BT-12T-15K is used for storage, volume control, temperature, buffer fluid pressure, that is used for lubrication and cooling of double tandem mechanical seals. Is applied for seal binding according to the plan 52 API 682.

Design peculiarity:
  • The split type design, the bottom with the coil can be removed for cleaning of the scum and sediment;
  • Equipped with the Klinger glass.
  • Sockets for level, temperature and pressure sensors connection are provided.
  • Equipped with ball valves, safety valves, bimetal thermometer, pressure gauge
Materials:
  • stainless steel 12X18H10T;
  • rubber mixtures based on fluororubber, perfluororubber, ethylene propylene.
Heat exchanger tank BTN-12D-35K

Heat exchanger tank BTN-12D-35K

Heat exchanger tank BTN-12D-35Kis used for storage, volume control, temperature, barrier fluid pressure, that is used for lubrication and cooling of double tandem mechanical seals. Is applied for seal binding according to the plan 53A API 682.

Design peculiarity:
  • The design of the split type, the bottom with the coil can be removed for cleaning of the scum and sediment;
  • Equipped with the booster pump type NPR 3-35K;
  • Equipped with Durance glass for visual liquid level control
  • Sockets for level, temperature and pressure sensors connection are provided.
  • Equipped with ball valves, safety valves, bimetal thermometer, pressure gauge
Key features:
Parameter BT-12T-15K BTN-12D-35K
Buffer/barrier liquid Mineral oil (I-5,I-10), synthetic oil, diesel fuel, water, diethylene etc
Cooling liquid Chemically demineralized water or other coolants
Amount of buffer fluid, dm3
maximum
minimum
12
8,5
Temperature of buffer/barrier liquid at the heat exchanger tank input, °C, no more 80
Buffer/barrier liquid operational pressure, MPa, (kg/cm2) no more 1,5 (15) 3,5 (35)
Cooling liquid pressure, °C, no more 10
Recommended temperature for Cooling liquid at the heat exchanger tank input, °C 20...30
Recommended flow rate, m3/h 0,6...1,2
Calculated capacity of the built in heat exchanger, kW 3,5
Weight without instrumentation, kg 25 38


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Hydrocyclone separator model GTSS

Hydrocyclone separator model GTSS

Hydrocyclone separator model GTSS designed for cleaning of supplied sealing liquid from abrasive substances. Is applied together with single mechanical seal binding according to the plan 31 API 682.

Application:pumps for oil extraction and transportation, chemical pumps in refinery industry, that are pumping liquids with hard abrasive substances.

Materials: steel 12X18H10T.

Features:
  • Maximum operational pressure -10 (100) MPa (kg/cm2).
  • Maximum working temperature – 150 °C.
  • Connection – G ½ ; flange.
  • Minimum differential pressure across the hydrocyclone – 0. 15 (1.5) MPa (kg/cm2).
  • Cleaning degree depending on fluid (product) viscosity and size of mechanical particles. – from 90 to 99%.
  • Apart from filters the periodical cleaning is unnecessary.
  • Machine life expectancy not less 3 years.

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External heat exchanger model VT-45K

External heat exchanger model VT-45K

External heat exchanger model VT-45K designed for cooling liquids, that are supplied to the mechanical face seal chamber. Is applied for seal binding according to the plans 21, 22, 23, 41, API 682.

Design peculiarity:
  • The split type design for cleaning of the scum and sediment;
  • The coil type heat exchanger is built in the cover;
  • Block valve and bimetallic thermometer are included in delivery;
  • Materials: stainless steel 12X18H10T.
Features:
  • Consumed fluids: chemically demineralized water, steam condensate.
  • Internal capacity - 7 liters.
  • Power - 3,5 kW.
  • Maximum cooling liquid pressure - 1 (10) MPa (kg/cm2).
  • Cooling liquid pressure – 4,5 (45) MPa (kg/cm2).
  • Weight - 11 kg.

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Automatic differential pressure maintaining on the basis of differential hydraulic piston SAPPD 1,1-7,5/2-35K

Automatic differential pressure maintaining on the basis of differential hydraulic piston SAPPD 1,1-7,5/2-35K

Automatic differential pressure maintaining on the basis of differential hydraulic piston SAPPD 1,1-7,5/2-35K Is used for storage, cooling, volume replenishment and differential pressure automatically maintenance of the barrier liquid in the cooling system of double mechanical seals.

Features:
  • includes external heat exchanger itself, differential hydraulic piston and hand feed pump NPR 3-35K;
  • split type design (easy cleaning of internal surfaces).

Complete set:
  • bimetallic thermometer at the input of barrier fluid;
  • pressure gauge on barrier fluid supply line to the face seal;
  • device for visual inspection of the barrier fluid level in the differential hydraulic piston;
  • sensor for the minimum barrier liquid level determination in the differential piston;
  • sockets for temperature sensor connection;
  • safety valve;

Materials:
  • Stainless steel 12X18H10T, steel 20X13.
  • Rubber mixtures based on fluororubber, perfluororubber.

Key features:
Parameter SAPPD 1,1-7,5/2-35K
Barrier liquid Mineral oil (I-5,I-10), synthetic oil, diesel fuel, water, diethylene etc
Cooling liquid Chemically demineralized water or other coolants
Volume of barrier liquid, l
in the tank
in the differential piston
7,5
2
Hydraulic gain 1,1
Operational liquid (product) temperature, °C, no more From -20 to +200
Input temperature of the barrier liquid, °C, no more 90
Operating pressure of barrier liquid, MPa (kg/cm2, no more) 3,85 (38,5)
Cooling liquid pressure, MPa (kg/cm2, no more) 10
Recommended input temperature of cooling liquid, °C 20...30
Recommended flow rate of cooling liquid, m3/h 0,6...1,2
Calculated power of the built – in heat exchanger, kW 3,5
Weight without instrumentation, kg 66


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