Spirax Sarco BSA1T/BSA2T/BSA3T/BSA6T Bellows Sealed Stop Valves

Description

Spirax Sarco BSA and BSAT bellows sealed globe valves with double bellows seal are designed for use in steam, gas, liquid, condensate and water systems. The standard series BSAT has a throttled spool and stem locking device, the optional series BSA has a flat spool. The products comply with the European Pressure Equipment Directive 97/23/EC and some models are available with EN 10204 3.1 certificate.

Available Models

Available types	SKU
BSA2T DN15 PN16	11841300
BSA2T DN20 PN16	11841400
BSA2T DN25 PN16	11841500
BSA2T DN32 PN16	11841600
BSA2T DN40 PN16	11841700
BSA2T DN50 PN16	11841800
BSA2T DN65 PN16	11841900
BSA2T DN80 PN16	11842000
BSA2T DN100 PN16	11842100
BSA2T DN125 PN16	11842200
BSA2T DN150 PN16	11842300
BSA2T DN200 PN16	11842400
bsa2-bd dn200 pn16	11372463
BSA2T DN15 PN25	1841351
BSA2T DN20 PN25	1841451
BSA2T DN25 PN25	1841551
BSA2T DN32 PN25	1841651
BSA2T DN40 PN25	1841751
BSA2T DN50 PN25	1841851
BSA2T DN65 PN25	1841951
BSA2T DN80 PN25	1842051
BSA2T DN100 PN25	1842151
BSA2T DN125 PN25	1842251
BSA2T DN150 PN25	1842351
BSA2T DN200 PN25	1842451
bsa2-bd dn150 pn25	11372367
bsa2-bd dn200 pn25	11372467
BSA3T DN15 PN40	1842600
BSA3T DN20 PN40	1842700
BSA3T DN25 PN40	1842800
BSA3T DN32 PN40	1842900
BSA3T DN40 PN40	1843000
BSA3T DN50 PN40	1843100
BSA3T DN65 PN40	1843200
BSA3T DN80 PN40	1843300
BSA3T DN100 PN40	1843400
BSA3T DN125 PN40	1843500
BSA3T DN150 PN40	1843600

Product weight (approximate) kg

caliber	BSA2 BSA2T	BSA3 (DIN)	bsa3 (ansi) ansi 150	bsa3 ansi 300 jis/ks 20k	BSA6T PN40
DN15	4	4	5	6	4
DN20	4	5	6	7	5
DN25	5	6	8	9	6
DN32	7	8	-	-	8
DN40	10	11	10	11	11
DN50	12	14	12	15	14
DN65	16	19	-	-	19
DN80	21	26	25	29	26
DN100	36	44	41	49	44
DN125	52	64	-	-	-
DN150	75	88	-	94	-
DN200	145	-	-	-	193

Sealing Grade

Spool-seat sealing in accordance with EN 12266 - 1 Class A and ISO 5208 Class A. BSA3 (ANSI) sealing class in accordance with API 598 zero leakage.

material (that sth is made of)

• BSA6T Material
  

  Item	Part	BSA6T
  1	valve body	Stainless steel EN 10213 1.4408 or STM A351 CF8M
  2	bonnet	Stainless steel EN 10213 1.4581
  3	Seat	Stainless steel EN 10213 1.4408 or STM A351 CF8M
  4	compact disc	DN15 - DN40: stainless steel EN 10088 1.4571; DN50 - DN100: stainless steel EN 100222 1.4571
  5	bellow	Stainless steel DIN 17440 1.4571
  6	tappet	Stainless steel EN 10088 1.4571
  7	handwheels	Pressed steel BS 1449 CR4
  8	Stem packing	plumbago
  9	Bonnet bolts	Stainless steel A4 - 70
  10	Bonnet Nut	Stainless steel A4
  11	Body/Bonnet Gasket	Stainless steel reinforced flake graphite
  12	locknut	DN15 - DN80: steel M8×14mm A2 - 70; DN100 - DN150: steel M8×20mm A2 - 70; DN200 - DN250: steel M12×20mm A2 - 70

Stroke Limit for Throttle Models

Protective covers BSA2T and BSA3T have a threaded hole in the handwheel nut for mounting a travel limiter. Customers supply their own standard bolts and nuts from the table below.

caliber	hexagonal bolt
DN15 - DN80	M8×50mm
DN100 - DN150	M12×75mm
DN200 - DN250	M12×100mm

The handwheel nut on the BSA6T also has a threaded hole for the stroke limiter. Customer supplied standard bolts and nuts are the same as above.

Valve body design conditions

• BSA2T and BSA2

Valve body design conditions	PN16	PN25
PMA - Maximum Allowable Pressure	16 bar g	25 bar g
TMA - Maximum Allowable Temperature	350 °C	350 °C
PMO Maximum Working Pressure under Saturated Steam	14.7 bar g	22.3 bar g
TMO Maximum Operating Temperature (Soft Seat)	230 °C	230 °C
TMO Maximum Operating Temperature (Metal Seat)	350 °C	350 °C
Minimum working temperature	-10 °C	-10 °C
Design maximum cold hydraulic test pressure	24 bar g	38 bar g