Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. Copyright 216 TI-P43-12 B Issue 4 BCV Blowdown Control Valves N15 to N5 (½" to 2") escription Spirax Sarco's BCV blowdown control valves are manufactured using the market proven Spira-trol TM body. These valves have been specifically designed for the blowdown of steam boilers or for other high pressure drop, low flow applications, and are generally used with a blowdown controller as part of an automatic BCV control system. The flowrate is adjusted by setting the stroke of the valve spindle. These valves have been specially designed to minimize seat erosion and ensure consistent tight shut-off. ¼" BSP plug at the base of the valve may be removed to allow a sample cooler to be fitted. Two versions are available: - Electrohydraulically actuated BCV blowdown control valve. - Pneumatically actuated BCV blowdown control valve. vailable models: Material Connections Screwed Socket weld Flanged Butt weld Carbon steel BCV41 BCV42 BCV43 BCV44 Stainless steel BCV61 BCV62 BCV63 BCV64 SG iron BCV71 BCV73 lloy steel BCV82 BCV83 BCV84 Size and pipe connections ½", ¾", 1", 1¼", 1½" and 2" Screwed BSP or NPT, Socket weld and Butt weld. N15, N2, N25, N32, N4 and N5 Flanged: 192 PN25, PN4, PN63 and PN1 class 125, 15, 25, and 6 1K, 2K, 3K and 4K Electrohydraulically actuated Spira-trol TM valve body options Stem sealing Seating Graphite packing High temperature applications Hard facing 316L stainless steel with Stellite 6 facing BCV blowdown control valves are compatible with the following actuators and positioners: Version ctuator Positioners Electric Pneumatic HL1 series PN9 _ series PP5 (pneumatic) EP5 (electropneumatic) ISP5 (intrinsically safe electropneumatic) SPis, SP4 and SP5 (microprocessor based electropneumatic) SP (digital communications) Pneumatically actuated Standards These products fully comply with the requirements of the European Pressure Equipment irective 97 / 23 / EC. Certification These products are available with material certification to 124 3.1. Note: ll certification / inspection requirements must be stated at the time of order placement. Operation BCV blowdown control valves are supplied loaded to the closed position. Electrical version: When the power is connected to the actuator the valve opens to the position set by the internal limit switch. Pneumatic version: When the solenoid valve opens, air is admitted to the actuator activating the valve to open to the selected stroke. Page 1 of 14
Materials Please note that the spare parts available for the blowdown control valve are the same for both the electrically and pneumatically actuated versions. No. Part Material Carbon steel 1.619+N / WCB Stainless steel 1.448 / CF8M 1. Body SG iron -GJS-4-18-LT / 395 lloy steel 1.7357 / WC6 Forged steel 1.46 / 15N or 1.619 / WCB Stainless steel 1.448 / CF8M 2. Bonnet SG iron -GJS-4-18-LT / 395 lloy steel 1.7357 / WC6 3. Seat retainer Stainless steel 316L 4. Seat Stainless steel 316L with Stellite 5. Plug Stainless steel 316L with Stellite Please note that the spare parts available for the blowdown control valve are the same for both the: - electrically and - pneumatically actuated versions. 2 1 5 3 4 Page 2 of 14 TI-P43-12 B Issue 4 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Electrical data ctuator HL1 series Supply voltage Standard 24 Vac, Optional card 23 Vac and 11 Vac Supply frequency 5 to 6 Hz Power consumption 1 to 18 ctuator speed 2 mm / s, 4 mm / s or 6 mm / s ctuators thrust maximum 2 kn Maximum shut-off value 42 bar g Size ctuator Maximum shut-off value N15 to N25 ½" to 1" HL1 series / PN9123E N32 to N5 1¼" to 2" HL1 series / PN9223E 42 bar g TI-P43-12 B Issue 4 Page 3 of 14 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Pressure / temperature limits BCV4_ Body design conditions: PM TM Maximum allowable pressure Maximum allowable temperature Minimum allowable temperature PMO TMO Maximum operating pressure for saturated steam service Maximum operating temperature Minimum operating temperature PN4, PN63 or PN1 class 15, class 2K, 3K or 4K or class 6 PN4 4 bar g @ 5 C PN63 63 bar g @ 5 C PN1 1 bar g @ 5 C 15 19.6 bar g @ 38 C 284 psi g @ 1 F 51.1 bar g @ 38 C 741 psi g @ 1 F 6 12.1 bar g @ 38 C 1 48 psi g @ 1 F 2K 34 bar g @ 12 C 3K 51 bar g @ 12 C 4K 68 bar g @ 12 C PN4 PN63 PN1 C @ 27.6 bar g 4 C @ 37.5 bar g 4 C @ 59.5 bar g 15 425 C @ 5.5 bar g 797 F @ 8 psi g 425 C @ 28.8 bar g 797 F @ 418 psi g 6 425 C @ 57.5 bar g 797 F @ 834 psi g 2K 3K 4K PN4-1 C PN63 C PN1 C C @ 2 bar g 425 C @ 3 bar g 425 C @ 4 bar g 15 C -2 F C -2 F 6 C -2 F 2K -1 C 3K C 4K C PN4 31.1 bar g @ 237 C PN63 47. bar g @ 261 C PN1 7.8 bar g @ 287 C 15 13.9 bar g @ 197 C 21 psi g @ 386 F 41.7 bar g @ 254 C 65 psi g @ 489 F 6 8. bar g @ 295 C 1 16 psi g @ 563 F 2K 3.6 bar g @ 236 C 3K 44.6 bar g @ 258 C 4K 58.5 bar g @ 276 C PN4 PN63 PN1 C @ 27.6 bar g 4 C @ 37.5 bar g 4 C @ 59.5 bar g 15 425 C @ 5.5 bar g 797 F @ 8 psi g 425 C @ 28.8 bar g 797 F @ 418 psi g 6 425 C @ 57.5 bar g 797 F @ 834 psi g 2K 3K 4K PN4-1 C PN63 C PN1 C C @ 2 bar g 425 C @ 3 bar g 425 C @ 4 bar g 15 C -2 F C -2 F 6 C -2 F 2K -1 C 3K C 4K C esigned for a maximum cold hydraulic test pressure of: 1.5 x PM of the relative end connection of choice Page 4 of 14 TI-P43-12 B Issue 4 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Pressure / temperature limits BCV4_ BCV41 Screwed BSP BCV43 Flanged 192 4 1-1 - B B C 2 4 6 8 1 Flanged 192 PN4 and Screwed BSP C B - C B - Flanged 192 PN63 Flanged 192 PN1 BCV41 Screwed NPT BCV42 Socket weld BCV43 Flanged BCV44 Butt weld 4 6 8 1 1 14 425 E G H 1 Pressure psi g 7 6 5 4 1 F G H -2 2 4 6 8 12 Temperature F E - F Flanged class 15 E - G Flanged class, Screwed NPT and Socket weld class (B 16.11) E - H Flanged class 6, Socket weld class 6 (B 16.11) and Butt weld BCV43 Flanged 425 4 K L M J 1 J J -1 L M 1 2 3 4 5 6 68 J - J K - K L - L Flanged 2K Flanged 3K Flanged 4K TI-P43-12 B Issue 4 Page 5 of 14 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Pressure / temperature limits BCV6_ Body design conditions: PM TM Maximum allowable pressure Maximum allowable temperature Minimum allowable temperature PMO TMO Maximum operating pressure for saturated steam service Maximum operating temperature Minimum operating temperature PN4, PN63 or PN1 class 15, class 2K, 3K or 4K or class 6 PN4 4 bar g @ 1 C PN63 63 bar g @ 1 C PN1 1 bar g @ 1 C 15 19. bar g @ 38 C 275 psi g @ 1 F 49.6 bar g @ 38 C 719 psi g @ 1 F 6 99.3 bar g @ 38 C 1 44 psi g @ 1 F 2K 34 bar g @ 12 C 3K 51 bar g @ 12 C 4K 68 bar g @ 12 C PN4 PN63 PN1 4 C @ 27.4 bar g 58 C @ 39.5 bar g 58 C @ 62.7 bar g 15 538 C @ 1.4 bar g 1 F @ 2 psi g 538 C @ 25.2 bar g 1 F @ 365 psi g 6 538 C @ 5. bar g 1 F @ 725 psi g 2K 3K 4K PN4-1 C PN63 C PN1 C 425 C @ 2 bar g 49 C @ 3 bar g 49 C @ 4 bar g 15 C -2 F C -2 F 6 C -2 F 2K -1 C 3K C 4K C PN4 32.2 bar g @ 24 C PN63 49.2 bar g @ 264 C PN1 75.1 bar g @ 291 C 15 13.8 bar g @ 197 C psi g @ 386 F 33.8 bar g @ 242 C 49 psi g @ 467 F 6 64.6 bar g @ 281 C 937 psi g @ 538 F 2K 3.6 bar g @ 236 C 3K 44.6 bar g @ 258 C 4K 58.5 bar g @ 276 C PN4 PN63 PN1 4 C @ 27.4 bar g 58 C @ 39.5 bar g 58 C @ 62.7 bar g 15 538 C @ 1.4 bar g 1 F @ 2 psi g 538 C @ 25.2 bar g 1 F @ 365 psi g 6 538 C @ 5. bar g 1 F @ 725 psi g 2K 3K 4K PN4-1 C PN63 C PN1 C 425 C @ 2 bar g 49 C @ 3 bar g 49 C @ 4 bar g 15 C -2 F C -2 F 6 C -2 F 2K -1 C 3K C 4K C esigned for a maximum cold hydraulic test pressure of: 1.5 x PM of the relative end connection of choice Page 6 of 14 TI-P43-12 B Issue 4 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Pressure / temperature limits BCV6_ BCV61 Screwed BSP BCV63 Flanged 192 58 5 B C 4 1-1 C 2 4 6 8 1 - B B - C B - Flanged 192 PN4 and Screwed BSP Flanged 192 PN63 Flanged 192 PN1 BCV61 Screwed NPT BCV62 Socket weld BCV63 Flanged BCV64 Butt weld Pressure psi g E 4 6 8 1 1 14 538 1 4 F G H 8 6 4 1 F G H -2 2 4 6 8 99.3 Temperature F E - F Flanged class 15 E - G Flanged class, Screwed NPT and Socket weld class (B 16.11) E - H Flanged class 6, Socket weld and Butt weld class 6 (B 16.11) BCV63 Flanged 49 425 K L M J 1 J J -1 L M 1 2 3 4 5 6 68 J - J K - L K - M Flanged 2K Flanged 3K Flanged 4K TI-P43-12 B Issue 4 Page 7 of 14 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Pressure / temperature limits BCV7_ Body design conditions: PN25 1K class 125 or class 25 PN25 25. bar g @ 12 C PM Maximum allowable pressure 125 11.5 bar g @ 14 C 166 psi g @ 284 F 25 26.7 bar g @ 14 C 387 psi g @ 284 F 1K 13.7 bar g @ 12 C PN25 C @ 2 bar g TM Maximum allowable temperature 125 232 C @ 8.6 bar g 449 F @ 125 psi g 25 232 C @ 17.2 bar g 449 F @ 249 psi g 1K C @ 9.8 bar g PN25-1 C Minimum allowable temperature 125 C -2 F 25 C -2 F 1K -1 C PN25 22.5 bar g @ 22 C PMO Maximum operating pressure for saturated steam service 125 1. bar g @ 184 C 145 psi g @ 363 F 25 18. bar g @ 29 C 261 psi g @ 48 F 1K 12.3 bar g @ 191 C PN25 C @ 2. bar g TMO Maximum operating temperature 125 232 C @ 8.6 bar g 449 F @ 125 psi g 25 232 C @ 17.2 bar g 449 F @ 249 psi g 1K C @ 9.8 bar g PN25-1 C Minimum operating temperature 125 C -2 F 25 C -2 F 1K -1 C esigned for a maximum cold hydraulic test pressure of: 1.5 x PM of the relative end connection of choice Page 8 of 14 TI-P43-12 B Issue 4 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Pressure / temperature limits BCV7_ BCV71 Screwed BSP BCV73 Flanged 192 1-1 5 1 15 2 25 B B - B Flanged 192 PN25 and Screwed BSP BCV71 Screwed NPT BCV73 Flanged 1 E 4 232 C 4 15 1 5 Pressure psi g 5 1 15 2 25 26.7 E 1-2 Temperature F C - Flanged class 125 C - E Flanged class 25 and Screwed NPT BCV73 Flanged 1-1 F 2 4 6 8 1 12 13.7 G G F - G Flanged 1K TI-P43-12 B Issue 4 Page 9 of 14 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Pressure / temperature limits BCV8_ Body design conditions: PN63 or PN1 3K or 4K PN63 63 bar g @ C PN1 1 bar g @ C class 6 PM Maximum allowable pressure 6 13.4 bar g @ 5 C 1 5 psi g @ 122 F 3K 51 bar g @ 12 C 4K 68 bar g @ 12 C PN63 PN1 49 C @ 42.8 bar g 49 C @ 68. bar g TM Maximum allowable temperature 6 538 C @ 29.8 bar g 1 F @ 432 psi g 3K 4K 49 C @ 3. bar g 51 C @ 4. bar g PN63 C PN1 C Minimum allowable temperature 6 C -2 F 3K C 4K C PMO Maximum operating pressure for saturated steam service PN63 63. bar g @ 28 C PN1 99. bar g @ 31 C 6 85.7 bar g @ C 1 243 psi g @ 572 F 3K 44.6 bar g @ 257 C 4K 58.6 bar g @ 274 C PN63 PN1 49 C @ 42.8 bar g 49 C @ 68. bar g TMO Maximum operating temperature 6 538 C @ 29.8 bar g 1 F @ 432 psi g 3K 4K 49 C @ 3. bar g 51 C @ 4. bar g PN63 C PN1 C Minimum operating temperature 6 C -2 F 3K C 4K C esigned for a maximum cold hydraulic test pressure of: 1.5 x PM of the relative end connection of choice Page 1 of 14 TI-P43-12 B Issue 4 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Pressure / temperature limits BCV8_ BCV83 Flanged 192 49 4 1 B C 2 4 6 8 1 B C - B - C Flanged 192 PN63 Flanged 192 PN1 BCV82 Socket weld BCV83 Flanged BCV84 Butt weld Pressure psi g 4 6 8 1 1 14 538 E 1 4 8 6 4 1 E -2 2 4 6 8 1 13 Temperature F - E Flanged class 6, socket weld and butt weld BCV83 Flanged 51 4 1 G F 1 2 3 4 5 6 68 H F H F - F G - H Flanged 2K Flanged 3K Kvs values Valve size N15 N2 N25 N32 N4 N5 Kvs value.5.5.5 1.6 1.6 1.6 For conversion: Cv (UK) Kv x.963 Cv (US) Kv x 1.156 TI-P43-12 B Issue 4 Page 11 of 14 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Size PN N 15 N 2 N 25 N 32 N 4 N 5 C1 125 1K - - 184-222 254 2K 19.5 197-235 267 6 3K 4K 23 26 21 251 251 286 4 13 15 16 18 23 Pneumatic actuation B 125 1K 4 2K 6 1 1 21 23 26 26 3K 4K 392 421 416 422 449 B1 B1 125 1K 4 2K 6 1 3K 4K 378 432 427 48 46 C 23 C1 17 C 125 1K 4 2K 6 1 3K 4K 42.5 57. 54.5 65.5 76.5 84.5 49.5 56.5 71.5 85.5 Electric actuation Weight Electric version 125 1K 4 2K 6 1 3K 4K 12 12.8 13 19.5 2 23 16 18 19 25 28 33 B Pneumatic version 125 1K 4 2K 6 1 3K 4K 12 12.8 13 3.5 31 34 16 18 19 36 39 44 Page 12 of 14 TI-P43-12 B Issue 4 BCV Blowdown Control Valves N15 to N5 (½" to 2")
BCV selection guide Valve size N15, N2, N25, N32, N4 and N5 ½", ¾", 1", 1¼", 1½" and 2" N15 Valve series BCV BCV Body material 4 6 7 8 Carbon steel Stainless steel SG iron lloy steel 4 Connections 1 2 3 4 Screwed - Not available for the BCV8_ Socket weld - Not available for the BCV7_ Flanged Butt weld - Not available for the BCV7_ 3 Stem sealing H Graphite H Seating W Stainless Steel 316L with Stellite W Type of trim S Standard trim S Trim-balancing U Unbalanced U Bonnet type S Standard S Bolting S Standard S Flow coefficient To be specified Kvs.5 Connection type To be specified Flanged PN Pneumatic ctuation EL Electrical 23 Vac, 11 Vac or 24 Vac PN Selection example N15 - BCV 4 3 H W S U S S - Kvs.5 - Flanged PN How to order Example: 1 off Spirax Sarco N15 BCV43 pneumatically actuated control valve having flanged connections. TI-P43-12 B Issue 4 Page 13 of 14 BCV Blowdown Control Valves N15 to N5 (½" to 2")
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P43-13) supplied with the product. Installation note: The blowdown control valve should preferably be installed with the actuator vertically above the pipework and the flow direction as indicated on the valve body. It can be fitted in other positions, but not upside down. isposal: This product is recyclable. No ecological hazard is anticipated with the disposal of the product, providing due care is taken. Spare parts The spare parts available are detailed below. No other parts are supplied as spares. Please note that the spare parts available for the BCV blowdown control valve are the same for both the electrically and pneumatically actuated versions. vailable spares ctuator clamping nut Gasket set B, G Stem seal kits Graphite packing C1 Plug stem and seat kit Linear trim (No gaskets supplied) 2, E How to order spares lways order spares by using the description given in the column headed 'vailable spares', and state the size and type of valve and specify clearly the full product description as found on the label of the blowdown control valve body, as this will ensure that the correct spare parts are supplied. C1 Example: 1 off ctuator clamping nut for a Spirax Sarco N15 BCV43 blowdown control valve. B 2 E G Page 14 of 14 TI-P43-12 B Issue 4 BCV Blowdown Control Valves N15 to N5 (½" to 2")