Blowdown & Blowoff Valves Type BLB - Insatech...BONT® Valves Type BLB, for Continuous Blowdown The...
Transcript of Blowdown & Blowoff Valves Type BLB - Insatech...BONT® Valves Type BLB, for Continuous Blowdown The...
-
BONETTIQuality Valves & Level Gauges
Il futuro come tradizione
Our
trad
ition
is th
e fu
ture
Blowdown & Blowoff Valves Type BLB
-
For use at condition lower than ASME 600 lb Class and temperature lower than 350 °C (662 °F) we can use ASTM A562 T.630
• Carbon Steel can be supplied to ASME Std on request as well as ASTM as per our Std.• Different Process connections Flanges can be both socket welded & butt welded.• Size & Class as per requirement.
01
Part No. 71 22 Part No. 71 22
01 Body ASTM A105 ASTM A182 F22 24 Seat ASTM A105 ASTM A182 F22
02 Yoke ASTM A105 ASTM A105 + Stellite Gr. 6 + Stellite Gr. 6
03 Disk - Stem ASTM A479 410 c.3 ASTM A479 410 c.3 31 Antirotation Ring ASTM A182 F6 ASTM A182 F6
+Stellite Gr. 6 +Stellite Gr. 6 40 Thrust bearing Alloy Steel Alloy Steel
05 Bottom Ring Stainless Steel Stainless Steel 41 Bushing Locking Ring ASTM A182 F6 ASTM A182 F6
06 Packing Graphite Graphite 46 Backseat Ring ASTM A479 316 ASTM A479 316
08 Swing Bolt ASTM A193 B7 ASTM A193 B7 + Stellite Gr. 6 + Stellite Gr. 6
09 Pin Alloy Steel Alloy Steel 47 Backseat Locking Ring ASTM A564 T.630 ASTM A564 T.630
10 Packing Flange ASTM A105 ASTM A105
11 Yoke Bushing ASTM B150 C62300 ASTM B150 C62300
12 Handwheel Nodular Cast Iron Nodular Cast Iron
15 Handwheel Nut Carbon Steel Carbon Steel
15A Bolt Nut ASTM A194 2H ASTM A194 2H
17 Washer Carbon Steel Carbon Steel
19 Split Gland Stainless Steel Stainless Steel
20 Name Plate Stainless Steel Stainless Steel
Part Material for Standard Material Schedule
®BONT Valves Type BLB, for Continuous Blowdown
Forged Steel - Bonnetless - Non-rotating Stem
ASME Class 1500 - 4500
Quality Valves & Level Gauges
6093
-
For use at condition lower than ASME 600 lb Class and temperature lower than 350 °C (662 °F) we can use ASTM A562 T.630
• Carbon Steel can be supplied to ASME Std on request as well as ASTM as per our Std.• Different Process connections Flanges can be both socket welded & butt welded.• Size & Class as per requirement.
02
Part No. 71 22 Part No. 71 22
01 Body ASTM A105 ASTM A182 F22 19 Gland Stainless Steel Stainless Steel
+Inlay 316 +Inlay 316 24 Seat ASTM A105 ASTM A182 F22
02 Yoke ASTM A216 WCB/A105 ASTM A216 WCB/A105 + Stellite Gr. 6 + Stellite Gr. 6
03 Throttling Disk ASTM A479 410 ASTM A479 410 26 Stem Key Carbon Steel Carbon Steel
+Stellite Gr. 6 +Stellite Gr. 6 26A Bushing Key Carbon Steel Carbon Steel
4 Stem ASTM A479 410 c.3 ASTM A479 410 c.3 40 Thrust Bearing Alloy Steel Alloy Steel
05 Bottom Ring Stainless Steel Stainless Steel 41 Bushing Locking Ring ASTM A105 ASTM A105
06 Packing Graphite Graphite 46 Connector ASTM A182 F6a cl.3 ASTM A182 F6a cl.3
08 Gland Stud ASTM A193 B7 ASTM A193 B7 50 Pressure Seal Bonnet ASTM A105 ASTM A182 F2
09 Grain Carbon Steel Alloy Steel + Inlay 316 + Inlay 316
10 Packing Flange ASTM A105 ASTM A105 57 Bonnet Split Ring AISI 420 Q.T. AISI 420 Q.T.
11 Yoke Bushing ASTM B150 C62300 ASTM B150 C62300 58 Pressure Seal gasket ASTM A182 F316 ASTM A182 F316
12 Handwheel Carbon Steel Carbon Steel 61 Bonnet Bolt ASTM A193 B7 ASTM A193 B7
15 HandwheeleLocking Ring Carbon Steel Carbon Steel 102 Bonnet Flange ASTM A105 ASTM A105
15A Stud Nut ASTM A194 2H ASTM A194 2H
18 Main Disk ASTM A479 410 ASTM A479 410
+Stellite Gr. 6 +Stellite Gr. 6
Part Material for Standard Material Schedule
®BONT Valves Type PBR, for Blowoff
with Zero Leakage after Closing Operation
Forged Steel - Pressure Seal Bonnet - Non-rotating Stem
ASME Class 150 - 4500
6094
-
For use at condition lower than ASME 600 lb class and temperature lower than 350˚(662˚F) we can use ASTM A562 T630.
03
Part No 71 22 Part No 71 22
1. Body ASTM A105 ASTM A182 F22 17. Washer Carbon Steel Carbon Steel
2. Bonnet ASTM A105 ASTM A182 F22 17A. Washer Carbon Steel Carbon Steel
2A. Bonnet Flange ASTM A105 ASTM A479 F22 20. Nameplate Stainless Steel Stainless Steel
3. Disk- Stem A479 T410 c3 A479 T410 c3
+ Stellite Gr 6 + Stellite Gr 6 23. Position indicator Carbon Steel Carbon Steel
5. Bottom Ring Stainless Steel Stainless Steel 23.1 Indicator Disk PVC PVC
6. Packing Graphite Graphite 24. Seat ASTM A105 A479 F22
+Stellite Gr6 +Stellite Gr6
6A. Gasket 316SS + Graphite 316SS + Graphite 25. Flange • ASTM A105 ASTM A182 F22
8. Swing Bolt ASTM A193 B7 ASTM A193 B7 26. Stem key Carbon Steel Carbon Steel
8A. Body Bonnet Stud ASTM A193 B7 ASTM A193 B7 40. Thrust Bearing SKF SKF
9. Pin Alloy Steel Alloy Steel 41.Bush Locking Ring ASTM A105 ASTM A105
10. Packing Flange ASTM A105 ASTM A105
11. Yoke Bushing ASTM B150 C62300 ASTM B150 C62300
12. Handwheel Carbon Steel Carbon Steel
15. Handwheel Nut Carbon Steel Carbon Steel
15A. Bolt Nut ASTM A194 2H ASTM A194 2H
15B. Stud Nut ASTM A194 2H ASTM A194 2H
®BONT Valves Type BLB, for Continuous Blow-down
Forged Steel – Bolted Bonnet- Non Rotating Stem
ASME Class 150 - 2700
Part Material for Standard Material Schedule
Quality Valves & Level Gauges
6095 6096
• Carbon Steel can be supplied to ASME Std on request as well as ASTM as per our Std.• Different Process connections Flanges can be both socket welded & butt welded.• Size & Class as per requirement.
-
For use at condition lower than ASME 600 lb class and temperature lower than 350˚ (662 ˚F) we can use ASTM A562 T630.
04
Part No 71 22 Part No 71 22
1. Body ASTM A105 + Stellite Gr 6 ASTM A182 F22++ Stellite Gr 6 15A. Bolt Nut ASTM A194 2H ASTM A194 2H
2. Bonnet ASTM A105 ASTM A182 F22 15B. Stud Nut ASTM A194 2H Carbon Steel
2A. Bonnet Flange ASTM A105 ASTM A479 F22 17. Washer Carbon Steel Carbon Steel
3. Disk ASTM A479 T410 c3 A479 T410 c3
+ Stellite Gr 6 + Stellite Gr 6 17A. Washer Carbon Steel Carbon Steel
4. Stem A479 T410 c3 A479 T410 c3 20. Name Plate Stainless Steel Stainless Steel
5. Bottom Ring Stainless Steel Stainless Steel 23. Position Indicator Carbon Steel Carbon Steel
6. Packing Graphite Graphite 23.1 Indicator Disk PVC PVC
6A. Gasket 316SS+Graphite 316SS+Graphite 26. Stem Key Carbon Steel SKF
8. Swing Bolt ASTM A193 B7 ASTM A193 B7 40. Thrust Bearing SKF SKF
8A. Body Bonnet Stud ASTM A193 B7 ASTM A193 B7 41. Bush Locking Ring ASTM A105 ASTM A105
9. Pin Alloy Steel Alloy Steel 70. Connecting Ring Stellite Gr 6 Stellite Gr 6
10. Packing Flange ASTM A105 ASTM A105
11. Yoke Bushing ASTM B150 C62300 ASTM B150 C62300
12. Handwheel Carbon Steel Carbon Steel
14. Disk Pad A479 F6a cl3 A479 F6a cl3
15. Handwheel Nut Carbon Steel Carbon Steel
®BONT Valves Type BLB, for Blowoff Application with Anti-cavitation Disc
Forged Steel – Bolted Bonnet- Non Rotating Stem
ASME Class 150 - 2700
Part Material for Standard Material Schedule
6097
• Carbon Steel can be supplied to ASME Std on request as well as ASTM as per our Std.• Different Process connections Flanges can be both socket welded & butt welded.• Size & Class as per requirement.
-
®BONT Valves Type BLB, for Continuous Blowdown
The continuous blowdown valves are venturi type valves
designed for operation in open position. Their function is mainly to
control a continuous flow of steam and/or water under high p.
For that reason the design and materials must be such as to
minimise the effects of a fluid stream in condition of flashing or
made of water containing sometime abrasive particles.
The outlet of our valves is purposely Venturi tube-shaped. The
bonnetiess design enables easy dismantling, inspection and
maintenance. The stem is rising, non-rotating. A local stroke
indicator shows the position of the disk.
The materials used for these valves are indicated on page 2 for the
most requested Material Schedules, namely: Material Schedule
71, with carbon steel body; Material Schedule 22, with
chromemolybdenum alloy steel body.
In spite of the above mentioned features, it can happen that
these valves
- after some operating time - are not able to ensure a tight seal,
since even a slow-acting erosion deteriorates the working
surfaces of the disk and seat. What above does not affect its
function; the only consequence is a slight rise in the out flow
rate, the disk being in the same position, remediable by
closing the valve a little. The orifice can be selected in
accordance with the Table Fig. 6095, where the section of the
actual seat bore is indicated as a function of the upstream
pressure as well as of the flow rate.
The downstream pressure does not affect the flow rate, being
usually lower than the critical pressure.
The following data must be indicated for the selection of a ® BONT valve, type BLB:
- fluid
- max flow rate
- upstream pressure P1
- downstream pressure P2
- temperature.
Quality Valves & Level Gauges
05
Valves Type BLB and PBR, for high p
ASME Class 1700 - 2700 - 4500
The consequences of these critical flows of water/steam must not
affect geometry and finish of the contact surfaces between main
disk and main seat in order to ensure tight sealing with the passing
of time. The pressure seal bonnet enables easy dismantling,
inspection and maintenance. The stem is rising, non-rotating.
The materials used for these valves are shown on page 3 for the
most requested Material Schedules, namely: Material Schedule
71 with carbon steel body; Material Schedule 22 with
chromemolybdenum alloy steel body. The satisfactory results
obtained on all installations confirm the suitability of our design to
the most severe operating conditions. The following data must be
indicated for the selection of a BONT® valve,
type PBR:
- fluid
- max flow rate
- upstream pressure P1
- downstream pressure P2
- temperature.
Remember what follows: the valve being fully open, the
downstream pressure shall not be considered equal to the
atmospheric pressure as well to the condenser vacuum; in fact
there is a back pressure originated by the flowrate and the
downstream pipe section.
®BONT Valves type PBR, for Blowoff
These valves are usually used when tight seal is needed after a
blowoff operation. This utilization could be required by process
necessity and/or economical reasons.
In the past the two functions were mostly performed by two
different valves, fitted in series and operated in accordance with a
definite sequence.
Our valve type PBR carries out both functions in sequence and
namely: blowoff with valve suitably open and tight sealing with
valve closed. It is a multistage valve splitting the pressure drop
along the whole disk that is along the different stages of the disk.
The design of the disk, of the fluid path inside the valve as well the
materials are suitable to operation with high p, therefore usually
with critical flow.
-
Max
flow
rate
(t/
h)
06
Fig. 6095 - Chart of Flow Rate for Continuous Blowdown
Dia
mete
r o
f o
rific
e (
inch
es)
The operating range is very wide, in particular:
- Feedwater P1 = 180 to 300 bar
P2 = 20 to 40 bar
T = 200 to 300 °C
Flow Rate up to 150 t/h
- Saturated and superheated steam P1 = 35 to 180 bar
T = 350 to 550 °C
Ap >critical Dp
Nominal Sizes
up to 1 " for Type BLB With End connections as per requirement.
up to 3" for Type PBR With End connections as per requirement.
We reserve the right to carry out any necessary alterations, without notice.
Actuated valves.
The design of these valves with rising, non-rotating stem,
as well their oversizing, enables easy assembly of any
actuator type.
The actuator can be equipped with:
- torque limit switches, adjustable both at the time of
delivery and on plant site;
- stroke limit switches;
- local position indicator;
- ON-OFF remote transmitters;
- ancillary switches for various warnings/operations;
- inductive or resistive position transmitter.
-
Copyright © Cesare Bonetti. All rights reserved.
Unless otherwise indicated, all materials on these pages are copyrighted by Cesare Bonetti S.p.A. All rights reserved. Any reproduction, modification, storage in a retrieval system or retransmission, in any
form or by any means, electronic, mechanical or otherwise is strictly prohibited.
Suzhou - Jiangsu | ChinaLimburg an der Lahn | Germany Garbagnate Milanese (MI) | Italy Vapi - Gujarat | India
Publication CB-PC-09- Rev.00
BONETTIQuality Valves & Level Gauges
Cesare Bonetti S.p.A.
20024 Garbagnate Milanese,
Via Cesare Bonetti 17, Italy.
Cesare Bonetti India Pvt. Ltd.
Survey No. 36, 39 & 42, On N.H. No. 08,
Karambele, Vapi - 396 105 Gujarat - India.
Tel : +91-260-6634000
Bonetti Armaturen GmbH & Co. KG.
D-65549 Limburg an der Lahn,
In Den Fritzenstucker, 4. Germany.
Cesare Bonetti (Suzhou) Level Gauges & Valves Co. Ltd.
No. 8, Lane 1, Wupu Road, Shengpu District,
Suzhou Industrial Park, Jiangsu, China - 215 126.
Local Sales: Tel.: +39-02 99072333, Fax : +39-02 99072300
Email : [email protected]
Export Sales: Tel.: +39-02 99072444, Fax : +39-02 99072400
Email : [email protected]
Website : www.cesare-bonetti.com
Sales Office: Tel.: +91-22-27751851
Email : [email protected]
Website : www.cesare-bonetti.com
Sales Office: Tel.: +49-06431 598310, Fax : +49-06431 598329
Email : [email protected]
Website : www.bonetti.de
Sales Office: Tel.: +86-512-62816396, Fax : +86-512-62816393
Email : [email protected]
Website : www.cesare-bonetti.cn
Dealer
Distributors
Agent
Factories
Iceland
Canada
United States
Mexica
Venezuela
UnitedKingdom
Norway
Sweden
Finland
Russia
Indonesia Papua NewGuinea
Australia NewZealand
Thailand
Mongolia
ChinaSouth Korea
Japan
India
Afghanistan
Pakistan
Kazakhstan
Madagascar
South Africa
Botswana
Namibia
Angola
Tanzania
KenyaDR Congo
Ethiopia
SudanChad
Nigeria
NigerMali
AgeriaLibya
Egypt
South Araiba
Iraq
Spain Turkey
UkrainePoland
Germany
FranceItaly
A Complete International sales network, covering more than 70 countries across the world.
uandvc
reativ
ess
.com
Page 1Page 2Page 3Page 4Page 5Page 6Page 7Page 8