Packaged firetube boiler assemblies incorporating three- and four- pass, low-offset furnace, water-back technology and rated at nominal 5SF-FSHS/BHP (.046m² - FSHS/kW). Capacities available from 20 to 1,000 BHP (196 to 9,803 kW) at standard design pressures of 15 to 300 PSIG (103 to 2,068 kPa).
Due to large water content, liberal steam volume and water to steam interface disengaging area, the Y-SG Series 500L is particularly suited for continuous or intermittent process and space heating load demand operation. Low furnace heat release rates assure reduced vessel stress and thermal NOx production.
Series 500L
S3W/S4W
H3W/H4W
H3W/H4W
Standard Safety, Operation and Level Control Devices
S050 to S300
S015
W030 to W160
Pressure Gauge
•
•
•
Temperature Gauge
N/A
N/A
•
Float-Type LWCO - Pump Control
w/ Gauge Glass Assembly
High pressure steam boilers are constructed in accordance with ASME Section I ‘Rules for Construction of Power Boilers’ at standard design pressures of 50 to 300 PSIG (344 to 2068 kPa). For design pressure beyond standard offering, please consult factory.
Low pressure steam and hot water boilers are constructed in accordance with ASME Section IV ‘Rules for Construction of Heating Boilers’ limited to design steam pressure of 15 PSIG (103 kPa) and hot water service of 30 to 160 PSIG (206 to 1103 kPa) – maximum 250°F (121°C).
