Gardner Denver Hydrovane HV37. 50 HP Rotary Vane Air Compressor. Make: Gardner Denver; Model: HV37; Hp: 50; KW: 37; PSI: 115/150; ACFM: 201.8/175.9; DBA: 73 Hydrovane 9 / 18 Service/Repair/Workshop sjf Manual in PDFWill be sent World Wide via HYDROVANE 37/47 SERVICE & PARTS MANUAL ***PDF sent via email***.The Hydrovane Model 37 PUAS rotary sliding vane compressors are reliable, versatile, powerful, and cost effective. They can be found throughout all sectors of Hydrovane® Compressor HV04 (20 cfm). 979201 When these symbols appear in the body of this manual or on warning labels, Relief Procedure (page 37). This publication should be used in conjunction with the User Handbook. This handbook relates to all V37 kW 50/60 Hz compressors, model types: V37. The compressors have been manufactured in compliance with the EC/37/98 Directive for the European market. Note! Check your model on the identification nameplate