Reciprocating compressor KBU

natural gaselectricstationary

Product Overview
The KBU and KBZ are large, medium-speed reciprocating separable compressors designed as a cost-effective compression method for applications requiring large-horsepower drivers and high-compression capacity. These compressors are capable of handling high rod loads of 150,000 lbs.

Applications
Particularly useful for gas processing in midstream applications. Ariel's reciprocating compressors provide efficient capacity control as suction volumes and pressures fluctuate when new wells come online.

Product Features

• High-Efficiency Oil Filters: Canister style filters rated at 1-micron nominal and 12-micron absolute.
• Versatile Unloading Devices: Manual, head-end variable volume clearance pockets (VVCP) on most cylinders; pneumatic suction valve unloaders available on a limited basis.
• High-Strength Bolting: Durable grade 8 bolting on all loaded joints, with specially designed fatigue-fighting bolts on all valve caps to ensure fastening strength.
• Innovative Cylinders: Cylinders designed to operate across wide pressure ranges using valves that balance reliability and performance. Cylinder combinations allow many configurations to deliver precise volume and pressure requirements. Ariel 7 Performance Software is used for modeling and designing compressor configurations.
• Materials:
  • Gray Iron Crankcase: Forged steel crankshaft, gray iron crosshead guide, bronze thrust bearing, tri-metal main bearing.
  • Ductile Iron Crosshead: Alloy steel crosshead pin.
  • Forged Steel Connecting Rod: Bronze crosshead pin bushing, tri-metal connecting rod bearing, grade 8 stress bolts.

2 Throw - Key Dimensions & Performance
KBU | KBZ
Rated Power: 2,600 | 2,600
Stroke (in): 5.75 | 6.75
Max RPM: 1,200 | 1,000
Piston Speed: 1,150 | 1,125
Rod Diameter (in): 2.875 | 2.875
Total Rod Load (lbs): 150,000 | 150,000
Tension (lbs): 75,000 | 75,000
Compression (lbs): 80,000 | 80,000
Average Weight (lbs): 24,000 | 24,000
Max Length (in): 86 | 86
Nominal Width (in): 192 | 192
Crankshaft Centerline (in): 24 | 24

4 Throw - Key Dimensions & Performance
KBU | KBZ
Rated Power: 5,200 | 5,200
Stroke (in): 5.75 | 6.75
Max RPM: 1,200 | 1,000
Piston Speed: 1,150 | 1,125
Rod Diameter (in): 2.875 | 2.875
Total Rod Load (lbs): 150,000 | 150,000
Tension (lbs): 75,000 | 75,000
Compression (lbs): 80,000 | 80,000
Average Weight (lbs): 45,000 | 45,000
Max Length (in): 135 | 135
Nominal Width (in): 192 | 192
Crankshaft Centerline (in): 24 | 24

6 Throw - Key Dimensions & Performance
KBU | KBZ
Rated Power: 7,800 | 7,800
Stroke (in): 5.75 | 6.75
Max RPM: 1,200 | 1,000
Piston Speed: 1,150 | 1,125
Rod Diameter (in): 2.875 | 2.875
Total Rod Load (lbs): 150,000 | 150,000
Tension (lbs): 75,000 | 75,000
Compression (lbs): 80,000 | 80,000
Average Weight (lbs): 68,000 | 68,000
Max Length (in): 183 | 183
Nominal Width (in): 192 | 192
Crankshaft Centerline (in): 24 | 24

Technical Characteristics / Specifications

• Model designation: KBU / KBZ
• Rated power ranges by throw: 2 Throw = 2,600 hp; 4 Throw = 5,200 hp; 6 Throw = 7,800 hp (KBU and KBZ values shown per throw)
• Stroke options: KBU 5.75 in; KBZ 6.75 in
• Max RPM: KBU up to 1,200 rpm; KBZ up to 1,000 rpm
• Piston speed: approx. 1,125–1,150 (ft/min as shown per configuration)
• Rod diameter: 2.875 in
• Total rod load capacity: 150,000 lbs
• Tension capacity: 75,000 lbs
• Compression capacity: 80,000 lbs
• Average unit weights vary by configuration (examples: 24,000 lbs for 2-throw; 45,000 lbs for 4-throw; 68,000 lbs for 6-throw)
• Max length examples: 86 in (2-throw), 135 in (4-throw), 183 in (6-throw)
• Nominal width: 192 in
• Crankshaft centerline: 24 in