Reciprocating compressor KBK

natural gasgaselectric

Overview
The KBK and KBT are Ariel-manufactured reciprocating gas compressors designed for continuous operation in oil and gas field applications. Their modular cylinder options and reinforced internal components allow deployment across standard and specialized service conditions.

Performance Tables
2 Throw
Rated Power: KBK 1,840 — KBT 1,840 BHP
Stroke (in): KBK 6 — KBT 5
Max RPM: KBK 1,200 — KBT 1,500
Piston Speed: KBK 1,200 — KBT 1,250
Rod Diameter (in): KBK 2.0 — KBT 2.0
Total Rod Load (lbs): KBK 92,000 — KBT 92,000
Tension (lbs): KBK 46,000 — KBT 46,000
Compression (lbs): KBK 50,000 — KBT 50,000
Average Weight (lbs): KBK 11,500 — KBT 11,500
Max Length (in): KBK 58 — KBT 58
Nominal Width (in): KBK 169 — KBT 169
Crankshaft Centerline (in): KBK 17 — KBT 17

4 Throw
Rated Power: KBK 3,680 — KBT 3,680 BHP
Stroke (in): KBK 6 — KBT 5
Max RPM: KBK 1,200 — KBT 1,500
Piston Speed: KBK 1,200 — KBT 1,250
Rod Diameter (in): KBK 2.0 — KBT 2.0
Total Rod Load (lbs): KBK 92,000 — KBT 92,000
Tension (lbs): KBK 46,000 — KBT 46,000
Compression (lbs): KBK 50,000 — KBT 50,000
Average Weight (lbs): KBK 22,500 — KBT 22,500
Max Length (in): KBK 101 — KBT 101
Nominal Width (in): KBK 169 — KBT 169
Crankshaft Centerline (in): KBK 17 — KBT 17

6 Throw
Rated Power: KBK 5,520 — KBT 5,520 BHP
Stroke (in): KBK 6 — KBT 5
Max RPM: KBK 1,200 — KBT 1,500
Piston Speed: KBK 1,200 — KBT 1,250
Rod Diameter (in): KBK 2.0 — KBT 2.0
Total Rod Load (lbs): KBK 92,000 — KBT 92,000
Tension (lbs): KBK 46,000 — KBT 46,000
Compression (lbs): KBK 50,000 — KBT 50,000
Average Weight (lbs): KBK 35,500 — KBT 35,500
Max Length (in): KBK 147 — KBT 147
Nominal Width (in): KBK 169 — KBT 169
Crankshaft Centerline (in): KBK 17 — KBT 17

Product Features

• High-Strength Bolting: Grade 8 bolting on loaded joints and fatigue-resistant bolts on valve caps to maintain joint integrity under cyclic loading.
• Rigid Connecting Rods: Forged-steel connecting rods with four-bolt, heavy-duty I-section design for extended service life.
• Rugged Crossheads: One-piece crossheads with hardened, ground steel pins and full-pressure lubrication at top and bottom to minimize wear.
• Innovative Cylinders: Versatile cylinder designs with balanced valves for reliable operation across wide pressure ranges; cylinders can be combined in multiple configurations. Ariel 7 performance software is used for modeling and configuring compressor arrangements.

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.

Technical specifications

• Model: KBK / KBT.
• Total horsepower capability: up to 5,520 BHP (6 Throw configuration).
• Available configurations: 2 Throw, 4 Throw, 6 Throw.
• Stroke options: KBK 6 in, KBT 5 in.
• Max RPM: KBK 1,200; KBT 1,500.
• Piston speed: KBK 1,200; KBT 1,250.
• Rod diameter: 2.0 in (both KBK and KBT).
• Total rod load: 92,000 lbs (both KBK and KBT).
• Tension/Compression: Tension 46,000 lbs / Compression 50,000 lbs (both KBK and KBT).
• Average weights by throw: 2 Throw 11,500 lbs; 4 Throw 22,500 lbs; 6 Throw 35,500 lbs.
• Max lengths by throw: 2 Throw 58 in; 4 Throw 101 in; 6 Throw 147 in.
• Nominal width: 169 in.
• Crankshaft centerline: 17 in.