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HDL340 Series Reciprocating Gas Compressors HDL342, HDL343

The liquid-cooled Blackmer HDL340 Series single-stage, two-cylinder reciprocating gas compressors feature flow rates of 16.25 CFM (41.28 m³/hr) at max rpm. For precise leakage control and to minimize product contamination, the HDL340 Series gas compressors offer double- (HDL342), or triple-seal (HDL343) options. Compared to competitive compressors, all HD Series Compressors are equipped with thicker and more robust wear parts – piston rings, needle bearings, and high-efficiency valves that will keep the HD Series compressors operating longer than the competition between maintenance cycles. Equipped with an array of features such as a ductile iron head and cylinders, steel pistons and self-adjusting piston rod seals, HD compressors provide maximum performance, energy efficiency, quiet operation, low maintenance cost and reliability under the most severe service conditions.

Specifications
Features
Options
Ancillary Equipment
Maintenance
Videos
Downloads

Performance and Specifications

Single-Stage Models

Single-Seal Double-Seal Triple-Seal	HDL342 HDL343
Number of Cylinders	2
Bore, in. (mm)	2.69 (68)
Stroke, in. (mm)	3.0 (76)
Maximum Allowable Working Pressure - psia (bar)	750 (51.7)
Minimum/Maximum rpm	350 / 825
Piston Displacement @100 rpm - CFM (m³/hr) @Min rpm - CFM (m³/hr) @Max rpm - CFM (m³/hr)	1.97 (3.34) 6.89 (11.71) 16.25 (27.61)
Max. Power, BHP (kW)	15 (11)
Wt. w/Flywheel - lb. (kg)	˜375 (170)
Inlet / Outlet Connections	1.5" 600# ANSI

Features and Benefits

Single-stage, liquid-cooled models with piston displacement to 16 cfm (27 m3/hr) and working pressures up to 750 psi (51 bar) for use on low to moderate compression ratio applications
Available in double- and triple-seal models, providing positive sealing under all operating conditions with materials to suit any application
Triple-seal models are well suited for handling toxic, hazardous or corrosive gases

Applications:

Vapor recovery
Gas gathering
Gas transfer
Gas evacuation
Enhanced recovery
Gas blanketing
Pressure boosting
Flare elimination
Leak test recovery
Liquid gas transfer

Compressors Interactive Model

Common Industrial Gases:

Ammonia
Argon
Butadiene
Butane
Carbon Dioxide
Chlorine
Ethane
Ethyl Alcohol
Helium
Hydrogen
Hydrogen Chloride
Isobutene
Methyl Chloride
Nitrogen
Nitrous Oxide
Propylene
Refrigerants
Sulfur Dioxide
Vinyl Chloride

Visit the Compressor Solutions page for more information about the HD Series Reciprocating Gas Compressors.
Learn more about Blackmer Reciprocating Compressors with our interactive tool.

Options

Options	Available Literature	Details
Crankcase Oil Heater	CB322	Used to maintain adequate oil temperature in cold to severe climates
Distance Piece Options	CB037	Section of gas compressor between crankcase and compressor cylinder that isolates the two areas, providing oil-free operation for cylinder
Pressure Gauges	CB105	Various pressure gauges available
Suction Valve Unloaders & Systems	CB039	Prevents the compression of gas in the cylinder by holding the suction valves open, allowing the compressor to be started without a load and to control compressor's capacity
Wear & Corrosion Resistant Compressors (TNT-12)	CB001	Wear and corrosion resistant treatment for compressor, with TNT-12 impregnated parts
Purge Kit	CB342	Installed on triple seal compressors to pad or purge distance pieces
O-Ring Materials		Optional O-ring materials include PTFE, FKM, Neoprene, Ethylene-Propylene
Alternate Piston Ring Materials		Optional Piston-ring materials include poly filled PTFE
Extended Crankshaft		Extended crankshaft available for direct drive mounting
Oversized Flywheels		Available for various drive options

Ancillary Equipment

Equipment	Available Literature	Details
4-Way Valves	CB046	For piping, in aiding for easy transition from liquid transfer to vapor recovery - comes with handle and flow indicator
Electrical Schematic	CB276	Overview of a generalized wiring schematic for typical installations
Float Switch Information	CB145	Activates alarms and/or shut-down equipment when a liquid rises or falls past the switch
Liquid Traps	CB212	Trap installed in the suction line to stop liquid from entering the compressor
Liquid Traps, ASME Code	CB218	ASME coded trap installed in the suction line to stop liquid from entering the compressor
Low Oil Pressure Switches	CB020	Sends signal when the compressor's crankcase oil pressure falls
Mounting Arrangements	CB111	A variety of mounting arrangements available for compressors
Strainer	CB172	Features a 30-mesh stainless steel screen
Belt Guards		Available in either aluminum or stainless steel
Pressure Switches		Activates alarms and/or shutdown equipment for suction, discharge, differential, and/or oil pressure
Temperature Switches		Activates alarms and/or shutdown equipment for discharge and/or oil temperature
Temperature Gauges		Visual confirmation of temperature - typically on the suction and discharge process gas location
Thermowells		Protects temperature monitoring devices from harsh process gas conditions
Control Panels and Starters		Junction box and full turn-key functionality available in required classifications
NPT or Welded Piping Systems		Threaded or welded steel piping systems
Pressure Gauges	CB105	Visual confirmation of pressure - typically on the suction, discharge, and oil locations
Receivers		Often times used as a holding vessel for pressure control on the suction or discharge
Relief Valves		Overpressure safety devices required on the compressor discharge and any associated ASME code vessels
Shutoff Valves		Available in either manual or powered
Aftercoolers		Available in either air or water cooled
Motor or engine drives		Available in various classifications and fuel types
Repair tool kits	CB110	List of part numbers for special tools and tool kits used on compressors
Unloader Solenoid Valve	CB315	3-way solenoid suction valve unloader control

Maintenance Tools

Maintenance Tools – HDL342C, HDL343C		Part Number
Packing Installation Tool		790536
Spanner Wrench, 1/4" Adjustable		790316
Wrench for Valve Holdown Screw		790535
Compressor Tool Kit		790199
Valve Tool		798016
Piston Tools		N/A
Packing Ring Tool		798015