Catalogue

The valve axisymmetric KOO, KOOF, KOO-1 (New!)

Reverse axisymmetric valve are designed to prevent automatically backflow of the working medium on pipelines supplying cold water, hot water, oil products, natural gas, steam.

Axisymmetric return valves have a very low coefficient of resistance and, as a result, contribute to a significant reduction of pressure loss. Valve design is characterized by smooth operation in critical starting ranges.

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Description

Reverse axisymmetric valve have the following advantages:

  • low coefficient of resistance;
  • constant flow rate;
  • operation without outrun;
  • low noise level;
  • vertical and horizontal valve mounting;
  • sealing system: primary metal sealing / secondary sealing made of soft materials.

Reverse valves do not require any additional maintenance, and operate reliably during the entire service life (up to 30 years) due to the fact that the shutter is made of corrosion-resistant steels applying a layer of titanium nitride. It is possible to manufacture a reverse valve with a flanged joint to the pipeline.

Reverse axisymmetric valve URPS BIRS RAV

Reverse axisymmetric valves are designed to prevent automatically backflow of the working medium on pipelines transporting cold water, hot water, oil products, natural gas, steam.

Standard Specification

Valve Model

valve URPS BIRS RAV

DN

mm

25

32

40

50

65

80

100

150

200

250

PN

MPa

1,6; 2,5; 4,0; 6,3; 10,0; 16,0

Connection to the pipe

Flanged (ledge-slot); welded

Body frame

St. 09G2S; St. 12X18H10T

Throttle pair

St.12KH18N10T

Temperature of controlled environment,

˚С

from -60 to +450

Environment temperature,

˚С

from -60 to +70

  • Operation stability. Due to the design and working principle, the axisymmetric valve opens completely even at low flowrates, responds smoothly to changes in flow and operates consistently.
  • Insignificant hydraulic losses. Axial type design provides greater capacity at the same diameter comparing with other products running. Load reduction on pumps and compressors due to small hydraulic losses because of the full opening of the flow section and a high pressure recovery in the body frame with a nozzle profile.
  • Load reduction on pumps and compressors due to small hydraulic losses because of the full opening of the flow section and a high pressure recovery in the body frame with a nozzle profile.
  • Tightness. Even in the most difficult operating conditions, the reverse valves provide the required tightness.
  • No noise and vibration during operation. The design of the valve ensures flattening of the liquid end. Virtually there are no vortex flow and any other changes environment in the valve. Thus, the noise and turbulence levels are significantly reduced.
  • There is also a possibility of horizontal and vertical mounting.
  • There is no need in installation of protective structures.
  • The valves do not require additional fastening to the engineering structures.
  • Wide range of sizes, pressure limits and valve materials is available.

Table 1. Overall dimensions valves URPS BIRS RAV

DN

25

32

PN, MPa

1,6

2,5

4

6,3

10

16

1,6

2,5

4

6,3

10

16

Outside flange diameter, D

115

115

115

135

135

135

135

135

135

150

150

150

length, L

163

163

163

203

203

203

187

193

193

227

227

237

DN

40

50

PN, MPa

1,6

2,5

4

6,3

10

16

1,6

2,5

4

6,3

10

16

Outside flange diameter, D

145

145

145

165

165

165

160

160

160

175

195

195

length, L

214

220

220

260

264

274

230

230

230

274

276

290

DN

80

100

PN, MPa

1,6

2,5

4

6,3

10

16

1,6

2,5

4

6,3

10

16

Outside flange diameter, D

195

195

195

210

230

230

215

230

230

250

265

265

length, L

286

290

296

330

360

366

330

346

360

384

424

430

DN

150

200

PN, MPa

1,6

2,5

4

6,3

10

16

1,6

2,5

4

6,3

10

16

Outside flange diameter, D

280

300

300

340

350

350

335

360

375

405

430

430

length, L

396

418

418

492

532

542

482

516

536

586

646

656

DN

250

PN, MPa

1,6

2,5

4

6,3

10

Outside flange diameter, D

405

425

445

470

500

length, L

568

588

634

668

758

Reverse axisymmetric valve URPS BIRS KOF of 19с (лс, нж) 38нж type

Reverse axisymmetric valves of 19с (лс, нж) 38нж type have 50-150 mm diameter in accordance with Technical Specifications 3742-006-24363138-2015, at a pressure of 6.3 MPa (63 kgf / cm2), medium temperature up to + 600 ° С, temperature of the environment from -60 ° С. Reverse valves are applied when the backflow of the pumped medium is to be prevented. The valves are mounted on compressors, pumps and used in the technological piping of oil and gas refineries.

Due to the special shape of the valve disc, flow separation and valve chattering are prevented. The result is trouble-free operation with slight parts wear.

Table 2. Tightness of the gate in accordance with State Standard R 54808-2011 class A.

Product designations

Table of figures

DN, mm

Body frame material

L, mm

D

RAFV 50-63

19с38нж

50

20

300

175

RAFV 50-63 нж

19нж38нж

12KH18N10T

RAFV 50-63 ХL1

19лс38нж

09Г2С

RAFV 80-63

19с38нж

80

20

380

210

RAFV 80-63 нж

19нж38нж

12KH18N10T

RAFV 80-63 ХЛ1

19лс38нж

09Г2С

RAFV 100-63

19с38нж

100

20

430

250

RAFV 100-63 нж

19нж38нж

12KH18N10T

RAFV 100-63 ХL1

19лс38нж

09Г2С

RAFV 150-63

19с38нж

150

20

550

340

RAFV 150-63 нж

19нж38нж

12KH18N10T

RAFV 150-63 ХЛ1

19лс38нж

09Г2С

Reverse axisymmetric flange valve UPRS BIRS RAFV 19с (лс, нж) 19нж

Reverse axis-symmetric valves of the type 19с (лс, нж) 19нж have 50-150 mm diameter in accordance with Technical Requirements 3742-006-24363138-2015, at pressure of 16.0 and 25.0 MPa (160 and 250 kgf / cm2), medium temperature up to + 600 ° С, temperature of the environment from -60 ° С. Reverse valves are applied when the backflow of the pumped medium is to be prevented. The valves are mounted on compressors, pumps and used in the technological piping of oil and gas refineries.

Table 3. Tightness of the gate in accordance with State Standard R 54808-2011 class A.

Product designations

Table of figures

DN, mm

Body frame material

L, mm

D

RAFV 50-160

19с19нж

50

20

300

195

RAFV 50-160 нж

19нж19нж

12KH18N10T

RAFV 50-160 ХЛ1

19лс19нж

09Г2С

RAFV 80-160

19с19нж

80

20

380

230

RAFV 80-160 нж

19нж19нж

12KH18N10T

RAFV 80-160 ХЛ1

19лс19нж

09Г2С

RAFV 100-160

19с19нж

100

20

430

265

RAFV 100-160 нж

19нж19нж

12KH18N10T

RAFV 100-160 ХЛ1

19лс19нж

09Г2С

RAFV 150-160

19с19нж

150

20

550

350

RAFV 150-160 нж

19нж19нж

12KH18N10T

RAFV 150-160 ХЛ1

19лс19нж

09Г2С

Reverse axis-symmetric welded valve URPS BIRS RAV 1 19с (лс, нж) 19нж

Table 4. Tightness of the shutter in accordance with State Standard R 54808-2011 class A.

Product designations

Table of figures

DN, mm

Body frame material

L, mm

D

RAFV 50-160

19с19нж

50

20

164

195

RAFV 50-160 нж

19нж19нж

12KH18N10T

RAFV 50-160 ХЛ1

19лс19нж

09Г2С

RAFV 80-160

19с19нж

80

20

206

230

RAFV 80-160 нж

19нж19нж

12KH18N10T

RAFV 80-160 ХЛ1

19лс19нж

09Г2С

RAFV 100-160

19с19нж

100

20

236

265

RAFV 100-160 нж

19нж19нж

12KH18N10T

RAFV 100-160 ХЛ1

19лс19нж

09Г2С

RAFV 150-160

19с19нж

150

20

300

350

RAFV 150-160 нж

19нж19нж

12KH18N10T

RAFV 150-160 ХЛ1

19лс19нж

09Г2С

Designation of the valve URPS BIRS KCO when making order.

URPS BIRS RAFV.50.40.1.3.3.L.S, where

RAFV - Reverse axis-symmetric valve

50-nominal diameter, mm

40-pressure, atm

1 - body frame material 09Г2С3

3-material of plunger 12x18h10t

3- seat material12x18h10t

C- performance of flanges"ledge-slot” in accordance with State Standard 33259