Nominal diameter:
Nominal pressure:
Design temperature:
Pressure drop:
Actuator:
Working medium:
900 mm
25,0 MPa
550 С°
full (up to 25 MPa)
Manual, electrical
Boric acid solution, water,
steam, gas, primary circuit coolant, steam-water mixture
Great control range owing to the different combinations of pull-out parts.
Assurance of linear characteristic according to the Customer's request.
Noise and cavitation levels decrease.
Long lifetime owing to lack of erosion, cavitation, eddies, noises and vibrations.
Lack of welding joints in the valve design.
Pull-out parts replacement possibility without any cuttings out of pipeline.
BRU-A (Steam dump to atmosphere)
BRU-K (Steam dump to condenser)
BRU-D (Steam supply to second circuit deaerator)
BRU-SN (Auxiliaries)
BRU-TFU (Heating installation systems)
Type ОК.300/400.АВ.122E
Type ОК.300/350.АВ.122E
Type ОК.150/600.АВ.132E
Type ОК.100/500.АВ.132E
Type ОК.125/500.АВ.132E
Quick-acting relief valves (BRU) characteristics are calculated at NPP General Designer requests.
Nominal diameter:
Nominal pressure:
Design temperature:
Pressure drop:
Actuator:
Working medium:
800 mm
25,0 MPa
550 С°
Full (up to 25 MPa)
Manual, electrical actuation
Air, boric acid solution, water, primary circuit coolant, steam, gas, steam-water mixture, chemical solutions
Control valve of residual heal removal system (JNA);
Control valve of intermediate cooling circuit of KAA important consumers cooling system
Type ОК.300/300/300.АВ.322E
Type ОК.500/400/400.АВ.322E
Specific lock valves with design cutting out cavitations and noises and keeping high level capacity are included in the OKAN deliverables. Product line is provided upon request.
Nominal diameter:
Nominal pressure:
Design temperature:
Pressure drop:
Actuator:
Working medium:
1200 mm
25,0 MPa
550 С°
Full (up to 25 MPa)
Manual, electrical actuation
Boric acid solution, water, primary circuit coolant, steam, gas,
steam-water mixture, chemical solution
At Customer’s request gate valves
equipped with protection device
located in the gate valve cavity to prevent overpressure during the process of heating can be delivered.
Nominal diameter:
Nominal pressure:
Design temperature:
Packing type:
Actuator:
Working medium:
900 mm
25,0 MPa
550 С°
Bellows, gland stuffing box
Manual, electrical actuation
Boric acid solution, water, primary circuit coolant, steam, gas, steam-water mixture, chemical solutions
Nominal diameter:
Nominal pressure::
Design temperature:
Working medium:
2000 mm
25,0 MPa
550 С°
Air, boric acid solution, water, primary circuit coolant, steam, gas, steam-water mixture, chemical solutions, air
Nominal diameter:
Nominal pressure:
Design temperature:
Actuator:
Working medium:
300 mm
25,0 MPa
550 С°
Manual, electrical actuation
Pulp, boric acid solution, water, steam, gas,steam-water mixture,
chemical solutions
effect of valve seats double sealing: radial three-piece double-sided sealing of the seat ensures the gate tightness by means of "inlet" and "outlet" seat
lack of inner closed cavities: prevent possible ingress of contamination
additional set of disk springs fulfill a protection function against mechanical admixtures ingress into clearances
Nominal diameter:
Nominal pressure:
Design temperature:
Working medium:
1200 mm
25,0 MPa
550 С°
Air, boric acid solution, water, primary circuit coolant, steam, gas, steam-water mixture, chemical solutions
Nominal diameter:
Nominal pressure:
Design temperature:
Working medium:
1200 mm
30 MPa
550 С°
Air, boric acid solution, water, primary circuit coolant, steam, gas, steam-water mixture, chemical solutions
Production and delivery of cast of complex shapes, high quality forging, valves pull-out parts and components are provided through the cooperation between OKAN and leading international companies.
Besides valves production and engineering activities OKAN in cooperation with high-tech companies provides a wide range of customized production services:
Performance of overlaying welding bu means of argon or plasma arc technologies (Stellite, Hastelloy, Monel, Colmonoy);
Application of coatings (chemical, galvanic, electrolytic, anodic, diffusion);
Precision mechanical handling;
Metallurgy prefabrication;
Matching, completing and procurement of import equipment.
196084, Saint-Petersburg, Russia
Vozdukhoplavatelnaya ul.19A
