Description The FT44 is a carbon steel bodied ball float steam trap having stainless steel working internals and automatic air venting facility. The body and cover castings are produced by a TÜV approved foundry. The trap is supplied with integrally flanged connections and can be maintained without disturbing the pipework. Vertical flanged connections, designated FT44V, are available for all sizes. Flow direction for the horizontal trap is clearly illustrated above. For vertically orientated traps the flow is downwards only. Available options: FT44 – Horizontal flow FT44V – Vertical flow Capsule The BP99/32 capsule which is used in the FT44 is suitable for use on 150°C superheat @ 0 bar g and 50°C superheat @ 32 bar g. Optional extras A manually adjustable needle valve (designated 'C' on the nomenclature i.e. FT44-C) can be fitted to the FT44 horizontal version only. This option provides a steam lock release (SLR) feature in addition to the standard air vent. For further information please consult Spirax Sarco. The top of the cover can be drilled and tapped " BSP or NPT for the purpose of fitting a balance line if requested at the point of order. The bottom of the cover can be drilled and tapped " BSP or NPT for the purpose of fitting a drain cock if requested at the point of order. Standards This product fully complies with the requirements of the European Pressure Equipment Directive 97 / 23 /EC and carries the mark when so required. Certification This product is available with certification to EN 10204 3.1. Note: All certification / inspection requirements must be stated at the time of order placement. Sizes and pipe connections DN15, DN20, DN25, DN40 and DN50. Horizontal traps: Note the flow direction when facing the body: - DN15 to DN25 is left to right. - DN40 and DN50 is right to left. Standard flanges are EN 1092 PN40 with face-to-face dimensions in accordance with EN 26554 (Series 1), ASME B 16.5 Class 150, ASME B 16.5 Class 300 and JIS/KS 20 flanges are also available with extended face-to-face dimensions. Vertical traps: Note that the flow direction is vertically downwards only. Standard flanges are EN 1092 PN40 with face-to-face dimensions in accordance with EN 26554 (Series 1). ASME B 16.5 Class 150, ASME B 16.5 Class 300 and JIS/KS 20 are also available with face-to-face dimensions in accordance with EN 26554 (Series 1). ASME / JIS / KS flanges are supplied with tapped holes to receive flange bolts. ASME flanges have UNC threads and JIS / KS have metric threads.
Body design conditions PN40 PMA Maximum allowable pressure 40 bar g @ 100°C TMA Maximum allowable temperature 300°C @ 27.5 bar g Minimum allowable temperature -10°C PMO Maximum operating pressure for saturated steam service 32 bar g @ 239°C Note: The DN40 and DN50 traps are limited to a PMO equal to DPMX TMO Maximum operating temperature 285°C @ 28.5 bar g Minimum operating temperature 0°C Note: For lower operating temperatures consult Spirax Sarco Size DN15, DN20, DN25 DN40, DN50 FT44-4.5 4.5 bar 4.5 bar DPMX Maximum differential pressure FT44-10 10 bar 10 bar FT44-14 14 bar - FT44-21 21 bar 21 bar FT44-32 32 bar 32 bar Designed for a maximum cold hydraulic test pressure: 60 bar g Note: With internals fitted, test pressure must not exceed DPMX Caution: The trap in its complete operational form must not be subjected to a pressure greater than 48 bar otherwise damage to the internal mechanism may result.
Materials No. Part Material 1 Body Carbon steel 1.0619+N / WCB Cover studs Steel BS 4882 B7M 2 Cover nuts DN15, DN20 and DN25 Steel EN 10269 25 Cr Mo 4 DN40 and DN50 Steel BS 3692 Gr. 8 3 Cover gasket Reinforced exfoliated graphite 4 Cover Carbon steel 1.0619+N / WCB Valve seat DN15, DN20 and DN25 Stainless steel BS 970 431 S29 5 Main valve assembly with erosion deflector DN40 and DN50 Stainless steel BS 3146 Pt2 ANC2 BS 970 416 S37 Valve seat gasket DN15, DN20 and DN25 Stainless steel BS 1449 304 S11 6 Main valve assembly gasket DN40 and DN50 Reinforced exfoliated graphite Pivot frame assembly screws DN15, DN20 and DN25 Stainless steel BS 4183 18/8 7 Main valve assembly Bolts DN40 Stainless steel BS 970 302 S25 Studs and nuts DN50 Stainless steel BS 970 431 S29 8 Ball float and lever Stainless steel BS 1449 304 S16 9 Support frame DN15, DN20 and DN25 Stainless steel BS 1449 304 S16 10 Pivot frame DN15, DN20 and DN25 Stainless steel BS 1449 304 S16 11 Pivot pin DN15, DN20 and DN25 Stainless steel 12 Erosion deflector Stainless steel BS 970 431 S29 17 Air vent assembly Stainless steel 18 Air vent seat gasket Stainless steel BS 1449 409 S19 19 SLR assembly Stainless steel BS 970 303 S31 20 SLR gasket Steel BS 1449 CS4 21 SLR seal Graphite 26 Inlet plate DN40 and DN50 only Stainless steel BS 1449 304 S16
