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 212 TI-P137-18 ST Issue BSAT and BSA Bellows Sealed Stop Valves BSAT shown Description A range of sealed, in-line stop valves having twin ply bellows as standard throughout the range. These valves have been designed for use on steam, gas, liquid, condensate and water systems. The standard BSAT range comes complete with throttling plug and locking device. The alternative BSA range has a flat disc. The Tables on page 2 clearly display the available sizes, pipeline connections and available options for the standard and alternative ranges. Standards The product fully complies with the requirements of the European Pressure Equipment Directive 97 / 23 / EC and carries the when so required. mark Certification The BSA1 and BSA1T is available with a manufacturer's Typical Test Report. The BSA2, BSA2T, BSA3, BSA3T, BSAT and BSAT is available with certification to EN 12 3.1. Note: All certification / inspection requirements must be stated at the time of order placement. Page 1 of 1
Range and options Standard BSAT range - complete with throttling plug and locking device Material Cast iron SG iron Cast steel Stainless steel Stainless steel / cast steel BSA1T BSA2T BSA3T BSAT BSAT Model and connections PN1 ks 1 pn1 pn2 pn2 pn ASME 1 ASME 1 ks 2 pn pn DN1 Sizes DN2 DN2 DN32 DN DN DN DN8 DN1 DN12 DN1 DN2 DN2 Optional R-PTFE soft seat DN1 DN2 DN2 DN32 DN DN DN DN8 DN1 Alternative BSA range - complete with flat disc option Material Cast iron SG iron Cast steel Model and connections BSA1 BSA2 BSA3 PN1 ks 1 pn1 pn2 pn2 pn ASME 1 ASME 3 ks 2 Stainless steel Stainless steel / cast steel Sizes Optional balancing disc DN12 DN1 DN2 DN2 DN12 DN1 DN2 DN2 BSAT and BSA Bellows Sealed Stop Valves Page 2 of 1
Dimensions/weights (approximate) in mm and kg Weight A B C BSA1 Size BSA1T BSA3 BSA3 BSA3 BSAT PN JIS/ KS JIS / KS ASME ASME BSA2 (DIN) (ASME) ASME 3 BSAT 1K 2K 1 3 BSA2T ANSI 1 JIS/KS 2K PN DN1 13 133 12 18 12 2 12 DN2 1 13 178 117 178 2 12 7 DN2 1 13 2 127 23 217 12 8 9 DN32 18 183 - - - 217 12 7 8 - - 8 DN 2 23 22 1 229 23 2 1 11 1 11 11 DN 23 229 29 23 27 23 2 12 1 12 1 1 DN 29 293 - - - 23 2 1 19 - - 19 DN8 31 39 3 21 317 287 2 21 2 2 29 2 DN1 3 39 3 292 3 383 31 3 1 9 DN12 39 - - - 1 31 2 - - - DN1 8 79 28-31 7 88-9 - DN2 92 37-9 22 1 18-193 - DN2 73 - - - - 73 *18 - - - - *(BSA2T / BSA2 only) C B A BSAT and BSA Bellows Sealed Stop Valves Page 3 of 1
Seat leakage Disc to seat shut-off conforms to EN 122-1 Rate A leakage and ISO 28 Rate A. Disc to seat shut-off for BSA3 (ANSI) conforms to API 98 no leakage. Kv values - all options Size DN1 DN2 DN2 DN32 DN DN DN DN8 DN1 DN12 DN1 DN2 DN2 (½") (¾") (1") (1¼") (1½") (2") (2½") (3") (") (") (") (8") (1") Kv 7 12 19 3 7 77 12 193 288 1 72 11 For conversion: Cv (UK) = Kv x.93 Cv (US) = K v x 1.1 Note: For Kv values and flow characteristic values of the BSA1T, BSA2T and BSA3T see the next section 'BSAT flow data'. BSAT flow data BSAT valve To convert Kv to volume flowrate in m³/h:- Size DN1 DN2 DN2 DN32 DN DN DN DN8 DN1 DN12 DN1 DN2 DN2 Handwheel Kv values for given handwheel rotations tested to EN 3-2-3 Water at 2 C rotations. 1.2 1.2 1. 2.2..1. 1. 12. 21 28 11 1 1.7 1.7 2. 3.7.. 7. 11. 1.3 23 3 81 1 1. 2.7 2.9 2.9... 9.2 13. 2. 2 33 97 1 2 3... 7.9 7. 7.2 11. 1.3 3.1 2 111 1 2...3. 1. 11. 9.7 12. 18. 9. 7 19 19 3.. 8. 13.8 1.7 1.1 13. 21.1 8.2 9 9 199 22 1. 17. 22. 2. 2.2 2. 123. 1 12 32 33. 11.2 18.3 2. 29. 32. 29. 139. 181 177 3 1 11.9 19. 27.2 37. 3. 39.1 1.1 18 21 3 28.9.2.2 1. 179. 22 2. 29.1 7. 3. 9. 18. 23 288 8 1.7 29.3 7.2.3 73. 23 293 87 7.9 78. 21 3 9 78 8 71.2 9. 29 337 7 738 8. 7. 92. 38 22 7 9. 99. 39 793 1 11. 8 1.7 827 = Kv x P Where: = Volume flow in cubic m/h P = Pressure drop in bar Note: The maximum recommended differential pressure in throttling function: DN1 - DN8 2. bar DN1 - DN12 DN1 DN2 - DN2 1. bar 1. bar.8 bar If the BSAT is used above these quoted figures, increased noise and vibration may be experienced. The graphs below show handwheel rotation and flow characteristic with water at 2 C: BSAT - DN1 3 2 1 1 2 3 BSAT - DN2 7 3 2 1 1 2 3 BSAT and BSA Bellows Sealed Stop Valves Page of 1
BSAT - DN2 BSAT - DN32 12 1 8 2 1 2 3 2 1 1 1 2 3 BSAT - DN 3 2 2 1 1 1 2 3.7 BSAT - DN 3 2 1 1 2 3.7 BSAT - DN BSAT - DN8 8 2 2 8. 1 9 8 2 2 8 1 BSAT - DN1 2 1 1 BSAT - DN1 1 2 3. BSAT - DN12 3 2 2 1 1 2 8 BSAT - DN2 3 2 1 2 2 8 9. 2 8. BSAT - DN2 9 3 2 2 8 1.7 Typical standard flat disc for the BSA1, BSA2 and BSA3 % Flow 1 8 2 8 1 % BSAT and BSA Bellows Sealed Stop Valves Page of 1
Materials for the BSA1T, BSA2T, BSA3T and BSA1, BSA2, BSA3 BSA1T BSA2T BSA3T and BSA3 No. Part and and BSA1 BSA2 DIN ANSI 1 Body 2 Bonnet SG iron EN-GJS--18-LT Cast iron SG iron Cast steel Cast steel EN-GJS-2 EN-GJS--18-LT 1.19+N (GSC 2N) ASTM A 21 WCB 3 Seat Stainless steel AISI 2 Metal Stainless steel DIN 17 X3 Cr13 Disc Soft seat Disc Stainless steel DIN 17 X3 Cr13 Insert R-PTFE 2% carbon filled Bellows Stainless steel DIN 17 X Cr Ni Ti 181 Stem Stainless steel AISI 2 7 Handwheel Pressed steel BS 19 CR 8 Stem packing Graphite Steel (DN1 - DN8) Forged steel (DN1- DN8) DIN 1723 C 22.8 ASTM A 1 Steel (DN1 - DN2) Cast steel (DN1- DN2) 1.19+N (GSC 2N) ASTM A 21 WCB Bonnet studs Steel DIN 172 2 Cr Mo Steel ASTM A 193 B7 9 Bonnet nuts Steel DIN 172 Ck 3 Steel ASTM A 192 2 H Bonnet bolts Steel DIN 931 Gr.. 1 Body / bonnet gasket Graphite laminated with stainless steel insert DN1 - DN8 Steel M8 x 1 mm BS 392 Gr. 8.8 Locking 11 screw DN1 - DN1 Steel M8 x 2 mm BS 392 Gr. 8.8 DN2 - DN2 Steel M12 x 2 mm BS 392 Gr. 8.8 Stroke limiter for throttling versions The handwheel nut on the BSA1T, BSA2T and BSA3T has a threaded hole for provision of a stroke limiter. Customer to supply standard nuts and bolts as indicated in the table below. Protection cap BSAT BSA Size Hexagon bolt DN1 - DN8 M8 x mm DN1 - DN1 M12 x 7 mm DN2 - DN2 M12 x 1 mm Stroke limiter Handwheel nut BSAT 7 11 11 9 2 8 1 1 DN1 shown 3 Optional balancing disc assembly 2 bar P DN12 Used 17 bar P DN1 " above 1 bar P DN2 8" bar P DN2 (BSA2 only) Optional soft sealing disc BSAT and BSA Bellows Sealed Stop Valves Page of 1
Materials for the BSAT and BSAT No. Part BSAT BSAT 1 Body Stainless steel Stainless steel EN 1213 1.8 or ASTM A31 CF8M EN 1213 1.8 or ASTM A31 CF8M 2 Bonnet Stainless stel Carbon steel DN1 - DN8 DIN 11723 C22.8 EN 1213 1.81 Carbon steel DN1 119+N (GSC 2N) 3 Seat Stainless steel EN 1213 1.8 or ASTM A31 CF8M Disc DN1 - DN Stainless steel EN 188 1.71 DN - DN1 Stainless steel EN 1222 1.71 Bellows Stainless steel DIN 17 1.71 Stem Stainless steel EN 188 1.71 7 Handwheel Pressed steel BS 19 CR 8 Stem packing Graphite Bonnet studs Stainless steel A-7 9 Bonnet nuts Stainless steel A 1 Body / bonnet gasket Graphite laminated with stainless steel insert DN1 - DN8 Steel M8 x 1 mm A2-7 Locking 11 screw DN1 - DN1 Steel M8 x 2 mm A2-7 DN2 - DN2 Steel M12 x 2 mm A2-7 Stroke limiter for throttling versions The handwheel nut on the BSAT and BSAT has a threaded hole for provision of a stroke limiter. Customer to supply standard nuts and bolts as indicated in the table below. Size Hexagon bolt DN1 - DN8 M8 x mm DN1 - DN1 M12 x 7 mm DN2 - DN2 M12 x 1 mm Protection cap 7 Stroke limiter Handwheel nut BSAT BSAT 11 9 8 2 1 1 3 BSAT and BSA Bellows Sealed Stop Valves Page 7 of 1
Product limitations Maximum permissible differential pressure in throttling function: Key: The product must not be used in this region. DN1 - DN8 2. bar DN1 1. bar Note: PMX Maximum differential pressure is limited to the PMO. DN1 - DN12 1. bar DN2 - DN2.8 bar BSA1T and BSA1 3 2 B A 1 A B 2 8 1 12 1 1 A - A Flanged JIS / KS 1K B - B Flanged PN1 Body design conditions PN1 JIS / KS 1K PMA - Maximum allowable pressure 1 bar g 1 bar g TMA - Maximum allowable temperature 3 C 22 C PMO - Maximum operating pressure for saturated steam service 12.9 bar g 11 bar g TMO - Maximum operating temperature Soft seat 23 C 22 C Metal seat 3 C 22 C Minimum operating temperature -1 C -1 C Designed for a maximum cold hydraulic test pressure of: 2 bar g 2 bar g BSA2T and BSA2 3 3 2 PN1 1 1 2 8 1 12 1 1 1 1 2 2 Body design conditions PN1 PN2 PMA - Maximum allowable pressure 1 bar g 2 bar g TMA - Maximum allowable temperature 3 C 3 C PMO - Maximum operating pressure for saturated steam service 1.7 bar g 22.3 bar g TMO - Maximum operating temperature Soft seat 23 C 23 C Metal seat 3 C 3 C Minimum operating temperature -1 C -1 C Designed for a maximum cold hydraulic test pressure of: 2 bar g 38 bar g 3 3 2 PN2 BSA3T and BSA3 (DIN) 3 2 1 PN2, DN2 PN, DN1 - DN1 1 1 2 2 1 1 2 2 3 3 Body design conditions PN2, DN2 PN, DN1 - DN1 PMA - Maximum allowable pressure 2 bar g bar g TMA - Maximum allowable temperature C C PMO - Maximum operating pressure for saturated steam service 23.2 bar g * 3. bar g TMO - Maximum operating temperature Soft seat 23 C 23 C Metal seat C C Minimum operating temperature -1 C -1 C Designed for a maximum cold hydraulic test pressure of: 38 bar g bar g * Maximum operating pressure is limited to 27 bar g for the soft seat version only 3 2 1 BSAT and BSA Bellows Sealed Stop Valves Page 8 of 1
Product limitations Maximum permissible differential pressure in throttling function: Key: The product must not be used in this region. DN1 - DN8 2. bar DN1 1. bar Note: PMX Maximum differential pressure is limited to the PMO. DN1 - DN12 1. bar DN2 - DN2.8 bar BSA3T and BSA3 (ASME) 2 3 C 2 1 D E F -29 1 2 3 1 C - D Flanged ASME 1 C - E Flanged JIS / KS 2K C - F Flanged ASME 3 Body design conditions ASME 1 ASME 3 JIS/KS 2K PMA - Maximum allowable pressure 19. bar g 1 bar g 3 bar g TMA - Maximum allowable temperature 2 C 2 C 2 C PMO - Maximum operating pressure for saturated steam service 1 bar g *1. bar g *3.7 bar g TMO - Maximum operating temperature Soft seat 23 C 23 C 23 C Metal seat 2 C 2 C 2 C Minimum operating temperature -29 C -29 C C Designed for a maximum cold hydraulic test pressure of: 31 bar g 77 bar g bar g * Maximum operating pressure is limited to 27 bar g for the soft seat version only BSAT and BSA 3 2 1-1 1 2 3 Body design conditions PN PMA - Maximum allowable pressure bar g @ C TMA - Maximum allowable temperature C @ 2 bar g Minimum allowable temperature -1 C PMO - Maximum operating pressure for saturated steam service Metal seat 29.8 bar g @ 23 C Soft seat 27. bar g @ 23 C TMO - Maximum operating temperature Metal seat C @ 2. bar g Soft seat 23 C @ 27. bar g Minimum operating temperature -1 C On/ off function Limited to the PMO PMX - Maximum differential pressure DN1 - DN8 2 bar Throttling function DN1 1. bar Designed for a maximum cold hydraulic test pressure of: bar g BSAT and BSA Bellows Sealed Stop Valves Page 9 of 1
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P137-2) supplied with the product. Installation note: Install in the direction of flow given by the arrow on the body with the handwheel in a suitable position. Disposal: These products are recyclable. No ecological hazard is anticipated with the disposal of these products, providing due care is taken. How to order Example: 1 off DN2 Spirax Sarco type BSA2T bellows sealed stop valve, flanged PN1 or PN2. Note: Should the differential pressure exceed those listed against the respective sizes in the table below, then please ensure balancing discs are specified for use in the valves (see illustration overleaf). Size DN12 DN1 DN2 DN2 Differential pressure (bar) 2 17 1 Spare parts The spare parts are shown in heavy outline. Parts drawn in broken line are not supplied as spares. Available spares Body/bonnet gasket and stem packing 1, 8 (2 off) Stem and bellows assembly (state if BSAT or BSA),, 8, 1 Disc (and optional disc where fitted) - state full description of the valve, 8, 1 How to order spares Please note: for customer convenience spares are supplied in kits to ensure all the appropriate replacement parts are supplied to carry out a specific maintenance task. e.g. when a stem/bellows assembly is ordered, parts (1), (8) and (, ) will be included in the kit. Always order spares by using the description given in 'Available spares' and state the size and type of stop valve. Example: 1 - Body / bonnet gasket and stem packing for a DN1 Spirax Sarco BSA2T PN1 bellows sealed stop valve. 8 BSAT shown 1 1 BSAT and BSA Bellows Sealed Stop Valves Page 1 of 1