ARIEL JGN & JGQ Gas Compressor

prod_JGN These small horsepower separable, reciprocating compressors mate readily with a variety of small, high-speed engines for individual well, gas gathering and are well suited for CNG. JGN's and JGQ's have become one of the best cost effective choices for CNG fleets with numerous standardized compression units.

As with all Ariel compressors, regular, minimal maintenance insures a lifetime of continuous, trouble-free operation.

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Features

Serviceability	Entire unit is designed for ease of repair. All components are readily accessible.
Standardization	Many components are interchangeable throughout the various lines.
Full Pressure Lubrication	A frame-driven lube oil pump provides pressurized, cooled oil through a full flow oil filter to all moving parts in the frame. A divider block distribution system supplies metered oil to cylinder bores and rod packings. Stainless steel tubing is used throughout the cylinder lubrication system.
Unloading Devices	Manual head-end variable volume clearance pockets are available on most cylinders, as well as pneumatic suction valve unloaders on a limited basis.
Heavy Duty Crankshaft	Forged steel, precision machined with integral counterweights.
Rugged Crankcase	Heavily ribbed (with spacer bars for stiffening), high-strength cast iron base with lightweight aluminum top cover.
Precision Bearing Shells	Precision-machined, tri-metal main and connecting rod bearings.
Rugged Crossheads and Guides	Integral crosshead guides with external ribbing and removable side covers. One-piece, long life crossheads with direct, full pressure lubrication at top and bottom for minimum wear. Hardened and ground steel crosshead pins
Rigid Connecting Rods	Forged steel, four bolt, heavy duty "H" section.
Quiet Auxiliary Drive	Fully enclosed and continuously lubricated chain drive adjusted by positive positioning eccentric vernier.
Oil and Dust Seal	Foolproof, non-contacting crankshaft oil seal, plus reliable non-wearing dust seal.
Proven Cylinder Design	Non-cooled compressor cylinders with ample nozzles and large gas passages.
High Strength Bolting	Grade 8 or 17-4PH bolting on all pressurized components. All bolting designed for accessibility.
Efficient Valving	Plate-type valves designed for modern speeds utilizing non-metallic sealing elements as standard. Selected to adhere to established, low valve velocity standards.
Durable Pistons	Wear resistant ductile or gray iron pistons. Available with rider rings.
Stout Piston Rods	Short, stiff, precision-ground alloy steel piston rods with locking crosshead nut. All piston rods are ion-nitrided for surface hardness and longevity. Rolled threads are 1/4" under rod diameter for easy installation through packing.

Frame Specifications

Frame	JGN/2	JGQ/2
Number of throws	2	2
Rated Power, BHP	252	280
Rated Power, kW	188	209
Stroke, inches	3.5	3.0
Stroke, mm	89	76
RPM, maximum	1500	1800
Piston speed, FPM	875	900
Piston speed, m/s	4.45	4.57
Total Rod Load, lbs	18000	20000
Total Rod Load, N	80068	88964
Tension, lbs	9000	10000
Tension, N	40034	44482
Compression, lbs	10000	11000
Compression, N	44482	48930
Average Weight with cylinders, lbs	2000	2000
Average Weight with cylinders, kg	907	9075
Maximum Length, inches	345	34
Maximum Length, mm	864	864
Nominal Width, inches	83	83
Nominal Width, mm	2108	2108
Crankshaft Centerline, from bottom, inches	9.25	9.25
Crankshaft Centerline, from bottom, mm	235	235

Cylinders

Ariel's successful design philosophy built upon for 40 years incorporates research indicating that modern, high speed cylinders do not require the water cooling necessary to previous generations of cylinders. The absence of water jackets results in larger gas passages, reducing pressure-drop losses and yielding the high efficiency Ariel cylinder. The innovative design of Ariel cylinders eliminates the major maintenance problems associated with water cooling, such as scaling and corrosion, and avoids pre-heating of inlet gas.

Ariel cylinders, combined with the innovative design of every Ariel frame, have earned Ariel the reputation for the lowest operating and maintenance costs of any gas compressor available today.

Specifications

Operation	Class	BORE inches	BORE mm	MAWP psi	MAWP bar	Material
Double-Acting	1-3/4M-FS	1.625; 1.750	41; 44	3500	241	Forged Alloy Steel
Double-Acting	2-3/4M	2.500; 2.750	64; 70	1880	130	Ductile Iron
Double-Acting	3M	3.000	76	1190	82	Ductile Iron
Double-Acting	3-1/2M	3.250; 3.500	83; 89	1050	72	Ductile Iron
Double-Acting	4-1/8M	3.875; 4.125	98; 105	750	52	Ductile Iron
Double-Acting	5-1/8M	4.750; 5.125	121; 130	500	34	Ductile Iron
Double-Acting	5-3/4M	5.500; 5.750	140; 146	480	33	Ductile Iron
Double-Acting	6-1/2M	6.125; 6.500	156; 165	275	19	Ductile Iron
Double-Acting	8M	7.500; 8.000	191; 203	175	12	Ductile Iron
DBL	8-7/8M	8.500; 8.875	216; 225	375	26	Gray Iron
DBL	11M	10.500; 11.000	267; 279	150	10	Gray Iron
DBL	13-1/2M	13.000; 13.500	330; 343	115	8	Gray Iron
Double-Acting	3JG	2.750; 3.000	70; 76	2550	176	Ductile Iron
Double-Acting	3-5/8JG	3.375; 3.625	86; 92	1270	88	Ductile Iron
Double-Acting	3-5/8JG	3.375; 3.625	86; 92	1640	113	Ductile Iron
Double-Acting	4-1/8JG	3.875; 4.125	98; 105	1270	88	Gray Iron
Double-Acting	5-1/8JG	4.750; 5.125	121; 130	865	60	Gray Iron
Double-Acting	6-1/2JG	6.125; 6.500	156; 165	635	44	Ductile Iron
Double-Acting	7-1/2JG	7.125; 7.500	181; 190	600	41	Ductile Iron
Tandem	2-1/4P-CE	2.063; 2.250	52; 57	1500	103	Ductile Iron
Tandem	2-3/4P-CE	2.500; 2.750	64; 70	1500	103	Ductile Iron
Tandem	3-1/4P-CE	3.000; 3.250	76; 83	1125	78	Ductile Iron
Tandem	3-1/4P-CE	3.000; 3.250	76; 83	1440	99	Ductile Iron
Tandem	4-3/8P-HE	4.125; 4.375	105; 111	1270	88	Ductile Iron
Tandem	5-1/8P-HE	4.750; 5.125	121; 130	635	44	Ductile Iron
Tandem	5-1/8P-HE	4.750; 5.125	121; 130	1200	83	Ductile Iron
Tandem	5-3/4P-HE	5.500; 5.750	140; 146	575	40	Ductile Iron
Tandem	3-3/4SP-CE	3.500; 3.750	89; 95	1265	87	Ductile Iron
Tandem	4-3/8SP-CE	4.125; 4.375	105; 111	935	64	Ductile Iron
Tandem	6-1/2SP-HE	6.125; 6.500	156; 165	600	41	Ductile Iron
Tandem	8SP-HE	7.500; 8.000	191; 203	440	30	Ductile Iron
Tandem	1-3/4SG-FS-HE	1.250; 1.500; 1.625; 1.750	32; 38; 41; 44	6100	421	Forged Alloy Steel
Tandem	2-1/2SG-FS-HE	2.000; 2.250; 2.500	51; 57; 64	5000	345	Forged Alloy Steel
Tandem	3SG-CE	2.750; 3.000	70; 76	2550	176	Ductile Iron
Tandem	3SG-CE	2.750; 3.000	70; 76	3000	207	Ductile Iron
Tandem	3JG-HE	2.750; 3.000	70; 76	2200	152	Ductile Iron
Tandem	3-5/8SG-CE	3.375; 3.625	86; 92	2550	176	Ductile Iron
Tandem	3-5/8SG-CE	3.375; 3.625	86; 92	3000	207	Ductile Iron
Tandem	3-5/8JG-HE	3.375; 3.625	86; 92	1270	88	Ductile Iron
Tandem	4-1/8JG-HE	3.875; 4.125	98; 105	1125	78	Ductile Iron
Tandem	5-1/8JG-CE	4.750; 5.125	121; 130	865	60	Gray Iron
Tandem	6-1/2JG-CE	6.125; 6.500	156; 165	635	44	Ductile Iron
Tandem	8-7/8M-CE	8.500; 8.875	216; 225	375	26	Gray Iron