Thermostatic Steam Traps BK with Duo Stainless …

1 BK 15, DN 40, 50 LLThermostatic Steam Traps BK with Duo Stainless Steel ( bimetallic ) Regulator PN 40 PN 630 BK 45, BK 46 DN 15, 20, 25 Robust regulator for roughest operatingconditions (unaffected by waterhammer and frost) Suitable for superheated steamapplications Automatic air-venting( Steam trap can be used for thermalair-venting in Steam systems) Installation in any position(horizontal and vertical lines) Stage nozzle acts as non-return valve Stainless steel internals Repairable in-line Base bushing ensures positive metal-to-metalsealing between body and regulator. Up to p 275 bar g Optional extra: Integrated Steam trap monitoringfor BK 45 (temperature or Steam loss)Features of the BK seriesApplicationFor open-loop controlled heating processes.

2 Draining of saturated Steam lines superheated Steam lines Steam tracersCan also be used for thermal air-ventingAir-ventingSteam trap for Thermostatic air-venting with bimetallic regulatorThe Thermostatic Steam Traps with corrosion-resistant Duo ( bimetallic ) regulator of the BK series can also be used for Steam trap for automatic air-venting and discharge of non-condensable gases and Steam /air mixtures from Steam lines and heat adjustment might be required. Pressure/Temperature RatingsTypePN / Class PMXM aterialMax. Pressure / Temp. Rating1)[bar]EN ASTM PMA [bar]TMA [ C]p/T [bar/ C]BK 45, BK 45U3)PN / / 450BK 45, BK 45U3)Class / / 425BK 45-LTClass 30022 SA350 / 464) / 4254)BK 15 DN 40, 50PN / / 450BK 15 DN 40, 50 Class / / 425BK 46PN A182-F 12) / / 450BK 46 Class A182-F 12) / / 450BK 37PN 63 A182-F 12) ) / 4504) / 5304)BK 27N DN 40, 50PN A182-F 12) / / 530BK 28PN A182-F 12) )5304) / 4504) / 5304)BK 29PN A182-F 12 )5404) / 4504) / 5404)BK 212PN A182-F 22 )5404) / 5004) / 5404)BK 212-F91 A182-F91 )5804) / 5004) / 5804)BK 212-SPN A182-F / 5404) / 5804)BK 212-F91-S / 5754) / 6254)

3 BK A182-F922) / 6004) / 6504)BK 37-ASMEC lass 400/60045 A182-F12 )5004) / 3004) / 5004)BK 28-ASMEC lass 60085 A182-F 12 )5004) / 3004) / 5004)BK 29-ASMEC lass 900110 A182-F 12 )5404) / 4504) / 5404)BK 212-ASMEC lass 2500275 A182-F 22 )5934) / 5004) / 5934)1) Limits for body/cover. Functional requirements may restrict the use to below the limits quoted. For full details on limiting conditions depending on end connection and type of regulator see data sheet. 2)Material complies with EN and ASTM )Opening undercooling approx. 30 )Only applicable for Traps with butt-weld (BW) or socket-weld (SW) ends DN 25. Note that limits willbe lower for Traps with other dimensions or flanged end connections.

4 Capacity ChartsAvailable End Connections and Overall Lengths in mmTypeConnectionDN 15 [1/2"]DN 20 [3/4"]DN 25 [1"]DN 40 [11/2"]DN 50 [2"]BK 45 Flanged EN PN 40150150160230230 Flanged ASME 1501)150150160230230DN 15 25 Flanged ASME 3001)150150160230230BK 15 Screwed sockets 95 95 95130230DN 40, 50 Socket-weld (SW) 95 95 95130230 Butt-weld (BW)200200200250250BK 46 Flanged EN PN 40150150160 Flanged ASME 300150150160 Screwed sockets 95 95 95 Socket-weld (SW) 95 95 95 BK 27 NFlanged EN PN 40 230230DN 40,50 Flanged EN PN 63 260300 Flanged ASME 400/600 241292 Socket-weld (SW) 180180 Butt-weld (BW) 180180BK 37 Flanged EN PN 63/100210230230 BK 28 Socket-weld (SW) 160160160 Butt-weld (BW)160160160 BK 29 Flanged EN PN 160210 230 Socket-weld (SW) 160160160 Butt-weld (BW)160160160 BK (BW)330330330 SeriesSocket-weld (SW) 330330330 BK 37-ASMEF langed ASME 400/600230230230 Socket-weld (SW)160160160 Butt-weld (BW)160160160 BK 28-ASMEF langed ASME 400/600230230230 Socket-weld (SW)160160160 Butt-weld (BW)160160160 BK 29-ASMEF langed ASME 900/1500230230254 Socket-weld (SW) 200200200 Butt-weld (BW)200200200 1) BK 45 with ASME flanges.

5 Overall length 172 mm available on Steam Traps BK with Duo Stainless Steel ( bimetallic ) Regulator PN 40 PN 630BK 27N, DN 40, 50 LBK 37, BK 28, BK 29, DN 15, 20, 25BK 212, DN 15, 20, 25 LLThe charts show the maximum hot condensate 45 DN 15-25 PMX 22 bar (Curve 1) BK 46 DN 15-25 PMX 32 bar (Curve 1)BK 15 DN 40 and 50 PMX 22 bar (Curve 2)41012223432586[bar][psi]46520030010060 8030 4020104000300020001000600400300200100604 03020[kg/h][lb/h]40003000200010006000800 0600400300100800604030208010000 DifferenzdruckDifferential pressureCapacityDurchfluss21BK 27N DN 40 and 50 PMX 45 bar (Curve 1) BK 37 DN 15-25 PMX 45 bar (Curve 3)BK 28/BK 28 ASME PMX 85 bar (Curve 2)BK 29/BK 29 ASME PMX 110 bar (Curve 2)BK 212/BK 212 ASME PMX 250 bar (Curve 4)Differential pressure Capacity Differential pressureCapacity