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  5. Corken 91 / F91 Compressor

Corken 91 / F91 Compressor

The Corken 91 / F91 Compressor is a versatile, oil-free reciprocating compressor designed for handling a variety of gases. It is particularly well-suited for applications requiring high reliability and minimal maintenance.

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Warranty Against Defects

Original Products

Ships Worldwide

Dedicate Support

The Corken 91 / F91 Compressor is a versatile, oil-free reciprocating compressor designed for handling a variety of gases. It is particularly well-suited for applications requiring high reliability and minimal maintenance.

Specifications

Model

91/F91

Bore of cylinder: inches (mm)

3.0 (76.2)

Stroke: inches (mm)

2.5 (63.5)

Piston displacement cfm (m3/hr)

minimum @ 400 RPM

axmimum @ 825 RPM

 

4.1 (7.0)

8.4 (14.3)

Maximum working pressure: psig (bar g)

335 (23.1)

Maximum brake horsepower: hp (kW)

7.5 (5.6)

Maximum rod load: lb (kg)

3,600 (1,633)

Maximum outlet temperature: °F (°C)

350 (177)

Minimum inlet temperature: °F (°C)

-25 (-32)

Bare unit weight: lb (kg)

150 (68.0)

Maximum flow-propane: gpm (m3/hr)

50 (11.4) b

Class 300 RF flange/DIN flange option

Yes

 

Standard Components

  1. Steel Baseplate: Durable and stable foundation for the system.
  2. V-Belt Drive: Efficient power transmission between the motor and compressor.
  3. Adjustable Driver-Side Base: Facilitates alignment and tensioning of the V-belt.
  4. Enclosed Steel Guard: Provides safety by covering moving parts.
  5. Pressure Gauges: Suction and discharge pressure monitoring.
  6. 40-Micron Strainer: Protects the system from debris and contaminants.
  7. Non-Lube 4-Way Valve: Ensures smooth and reliable directional control without lubrication.
  8. Interconnecting Piping: Fully integrated piping between components for easy installation.
  9. Liquid Trap: Prevents liquid slugging and ensures gas compression integrity (options specified below).

Mounting Options

107 Mounting

  • Mechanical Liquid Trap:
    • Equipped with a ball float for automatic liquid removal during operation.

107A Mounting

  • Automatic Liquid Trap:
    • Includes one NEMA 7 liquid level switch for enhanced control and monitoring.

107B Mounting

  • Advanced Automatic Liquid Trap:
    • Features two NEMA 7 liquid level switches for added redundancy and safety.

107F Mounting

  • High-Performance Option:
    • Includes 107A or 107B setups upgraded with Class 300 RF flanged components and connections for robust and high-pressure applications.

Standard Components

  1. Steel Baseplate: Ensures a stable and durable foundation for the system.
  2. V-Belt Drive: Delivers efficient power transfer from the motor to the compressor.
  3. Adjustable Driver-Side Base: Simplifies alignment and tension adjustments for the V-belt.
  4. Enclosed Steel Guard: Protects operators by shielding moving parts.
  5. Pressure Gauges: Suction and discharge gauges for monitoring system pressure.
  6. 40-Micron Strainer: Safeguards the compressor by filtering out particulates and debris.
  7. Non-Lube 4-Way Valve: Maintenance-free directional valve for smooth operation.
  8. Interconnecting Piping: Fully assembled, simplifying installation.
  9. Liquid Trap: Prevents liquid entry into the compressor (options detailed below).

Mounting Options

109 Mounting

  • Mechanical Liquid Trap:
    • Features a ball float mechanism for reliable liquid removal during operation.

109A Mounting

  • Automatic Liquid Trap:
    • Includes one NEMA 7 liquid level switch for automatic control and monitoring of liquid levels.

109B Mounting

  • Advanced Automatic Liquid Trap:
    • Features two NEMA 7 liquid level switches for enhanced monitoring and redundancy.

109F Mounting

  • High-Pressure Configuration:
    • Incorporates either 109A or 109B setups with Class 300 RF flanged components and connections, ideal for high-pressure applications.

 

 

Mounting Style

Description

Part No.

Model Reference

Ship Weight Compressor w/ Mounting

103 Style

Mounting includes steel baseplate, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor.

103-2 (a) (b)

91AJ3FBANSNN

260

103HD

Heavy duty version of the 103 mounting listed above

103HD-2 (a) (b)

91AJ3FBANHNN

200

107 Style

Mounting includes steel baseplate, mechanical liquid trap, non-lube 4-way valve, interconnecting piping, strainer, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor

107-1 (a) (b)

91AJ3FBANSNN

350

107A Style

Mounting includes steel baseplate, automatic liquid trap with NEMA 7 liquid level switch to stop compressor. Non-lube 4-way valve, interconnecting piping, strainer, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor.

107A-1 (a) (b)

91AJ3FBANSNN

350

107B Style

Mounting includes steel baseplate, ASME code liquid trap with two NEMA 7 liquid level switches for alarm and to stop compressor. Non-lube 4-way valve interconnecting piping, strainer and adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor.

107B-1 (a) (b)

91AJ3FBANSNN

675

107TR Style

Mounting set up to be used as a transport unit. Mounting includes steel baseplate, mechanical liquid trap, non-lube 4-way valve, interconnecting piping, and strainer.
Pressure gauges are mounted on the compressor.

107TR-70

91AE3FBANSNN

150

109 Style

Mounting includes steel baseplate, mechanical liquid trap, interconnecting piping, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges mounted on the compressor.

109-1 (a) (b)

91AJ3FBANSNN

330

109A Style

Mounting includes steel baseplate, automatic liquid trap with NEMA 7 liquid level, switch to stop compressor, interconnecting piping, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor.

109A-1 (a) (b)

91AJ3FBANSNN

330

109B Style

Mounting includes steel baseplate, ASME automatic liquid trap with two NEMA 7, liquid level switches for alarm and to stop compressor, interconnecting piping, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor.

109B-1 (a) (b)

91AJ3FBANSNN

650

 

 

 

 

Service

 

 

 

Capacity 1

 

 

 

Displacement cfm

 

 

 

Compressor

 

 

Driver Sheave Size P.D." 2

Driver Horsepower

 

 

 

Piping Size 3

Liquid Transfer and Residual Vapor

Recovery

Liquid Transfer without Residual Vapor

Recovery

Model

RPM

1,750 RPM

1,450 RPM

100°F

80°F

100°F

80°F

Vapor

Liquid

 

Small bulk plants

23

4

91

400

A 3.0

B 3.6

5

3

3

3

3/4

1-1/4

29

5

91

505

B 3.8

B 4.6

5

5

5

5

3/4

1-1/4

34

6

91

590

B 4.6

B 5.6

5

5

5

5

1

1-1/4

40

7

91

695

B 5.4

B 6.6

5

5

5

5

1

1-1/2

39

7

291

345

A 3.0

A 3.6

3

3

3

3

1

1-1/2

 

 

Unloading single tank car or transport

45

8

91

800

B 6.2

B 7.4

7-1/2

7-1/2

7-1/2

7-1/2

1

1-1/2

44

8

291

390

A 3.4

B 4.0

5

3

3

3

1

1-1/2

50

9

291

435

A 3.8

B 4.6

5

5

3

3

1

1-1/2

56

10

291

490

B 4.4

B 5.2

5

5

5

5

1

2

61

11

291

535

B 4.8

B 5.8

5

5

5

5

1

2

66

12

291

580

B 5.2

B 6.2

7-1/2

5

5

5

1

2

71

13

291

625

B 5.6

B 6.6

7-1/2

5

7-1/2

5

1-1/4

2

79

14

291

695

B 6.2

B 7.4

7-1/2

7-1/2

7-1/2

7-1/2

1-1/4

2

84

15

291

735

B 6.6

B 8.0

10

7-1/2

10

7-1/2

1-1/4

2-1/2

84

15

491

345

A 3.0

A 3.6

7-1/2

7-1/2

5

5

1-1/4

2-1/2

89

16

291

780

B 7.0

B 8.6

10

10

10

10

1-1/4

2-1/2

89

16

491

370

A 3.2

A 3.8

7-1/2

7-1/2

7-1/2

5

1-1/4

2-1/2

 

 

 

 

Unloading two or more tank cars

at one time or large transport with excess flow valves of adequate capacity

95

17

491

390

A 3.4

B 4.0

7-1/2

7-1/2

7-1/2

7-1/2

1-1/4

3

101

18

491

415

A 3.6

B 4.4

10

7-1/2

7-1/2

7-1/2

1-1/4

3

106

19

491

435

A 3.8

B 4.6

10

7-1/2

7-1/2

7-1/2

1-1/4

3

108

20

491

445

B 4.0

B 4.8

10

7-1/2

7-1/2

7-1/2

1-1/4

3

114

21

491

470

B 4.2

B 5.0

10

7-1/2

7-1/2

7-1/2

1-1/4

3

119

22

491

490

B 4.4

B 5.2

10

10

7-1/2

7-1/2

1-1/4

3

125

23

491

515

B 4.6

B 5.6

10

10

10

7-1/2

1-1/4

3

130

24

491

535

B 4.8

B 5.8

15

10

10

10

1-1/4

3

136

25

491

560

B 5.0

B 6.0

15

10

10

10

1-1/4

3

141

26

491

580

B 5.2

B 6.2

15

10

10

10

1-1/4

3

147

27

491

605

B 5.4

B 6.4

15

10

15

10

1-1/4

3

152

28

491

625

B 5.6

B 6.6

15

15

15

15

1-1/2

3

158

29

491

650

B 5.8

B 7.0

15

15

15

15

1-1/2

3

163

30

491

670

B 6.0

 

15

15

15

15

1-1/2

3

163

30

691

400

B 4.4

B 5.2

15

15

10

10

1-1/2

3

168

31

491

695

B 6.2

B 7.4

15

15

15

15

1-1/2

3

171

31

691

420

B 4.6

B 5.6

15

15

10

10

1-1/2

3

179

32

491

740

B 6.6

B 8.0

15

15

15

15

1-1/2

3

178

32

691

440

B 4.8

B 5.8

15

15

10

10

1-1/2

3

186

34

691

455

B 5.0

B 6.0

15

15

15

10

1-1/2

3

193

35

691

475

B 5.2

B 6.2

15

15

15

10

1-1/2

3

200

36

691

495

B 5.4

B 6.4

15

15

15

15

1-1/2

3

 

 

Unloading large  tank cars, multiple vessels, barges or terminals

208

38

691

510

B 5.6

B 6.8

20

15

15

15

1-1/2

4

215

39

691

530

B 5.8

B 7.0

20

15

15

15

1-1/2

4

223

41

691

550

B 6.0

A 7.0

20

15

15

15

1-1/2

4

230

42

691

565

B 6.2

B 7.4

20

15

15

15

2

4

237

43

691

585

B 6.4

A 7.4

20

15

15

15

2

4

245

45

691

605

B 6.6

B 8.0

20

15

15

15

2

4

252

46

691

620

B 6.8

 

20

20

15

15

2

4

260

47

691

640

B 7.0

A 8.2

20

20

20

15

2

4

275

48

691

675

B 7.4

B 8.6

25

20

20

20

2

4

297

54

691

730

B 8.0

B 9.4

25

20

20

20

2

4

319

58

691

785

B 8.6

 

25

20

25

20

2

4

334

60

691

820

TB 9.0

A 10.6

30

25

25

20

2

4

452

82

D/FD891

580

5V 7.1

5V 8.5

30

30

30

30

3

6

623

113

D/FD891

800

5V 9.75

5V 11.8

 

40

40

30

3

6

 

 

 

 

Service

 

 

 

Capacity 1

 

 

 

Displacement cfm

 

 

 

Compressor

 

 

Driver Sheave Size P.D." 2

Driver Horsepower

 

 

 

Piping Size 3

Liquid Transfer and Residual Vapor

Recovery

Liquid Transfer without Residual Vapor

Recovery

Model

RPM

1,750 RPM

1,450 RPM

100°F

80°F

100°F

80°F

Vapor

Liquid

 

Small bulk plants

23

4

91

400

A 3.0

B 3.6

5

3

3

3

3/4

1-1/4

29

5

91

505

B 3.8

B 4.6

5

5

5

3

3/4

1-1/4

34

6

91

590

B 4.6

B 5.6

5

5

5

5

1

1-1/4

40

7

91

695

B 5.4

B 6.6

5

5

5

5

1

1-1/2

43

7

291

345

A 3.0

A 3.6

5

3

3

3

1

1-1/2

 

 

Unloading single tank car or transport

46

8

91

800

B 6.2

B 7.4

7-1/2

5

5

5

1

1-1/2

45

8

291

390

A 3.4

B 4.0

5

3

3

3

1

1-1/2

50

9

291

435

A 3.8

B 4.6

5

5

3

3

1

1-1/2

56

10

291

490

B 4.4

B 5.2

5

5

5

3

1

2

62

11

291

535

B 4.8

B 5.8

7-1/2

5

5

5

1

2

67

12

291

580

B 5.2

B 6.2

7-1/2

5

5

5

1

2

72

13

291

625

B 5.6

B 6.6

7-1/2

5

5

5

1-1/4

2

80

14

291

695

B 6.2

B 7.4

7-1/2

7-1/2

7-1/2

5

1-1/4

2

85

15

291

735

B 6.6

B 8.0

10

7-1/2

7-1/2

7-1/2

1-1/4

2-1/2

85

15

491

345

A 3.0

A 3.6

7-1/2

7-1/2

5

5

1-1/4

2-1/2

90

16

291

780

B 7.0

B 8.6

10

7-1/2

7-1/2

7-1/2

1-1/4

2-1/2

90

16

491

370

A 3.2

A 3.8

10

7-1/2

5

5

1-1/4

2-1/2

 

 

 

 

Unloading two or more tank cars

at one time or large transport with excess flow valves of adequate capacity

96

17

491

390

A 3.4

B 4.0

10

7-1/2

5

5

1-1/4

3

102

18

491

415

A 3.6

B 4.4

10

7-1/2

7-1/2

7-1/2

1-1/4

3

107

19

491

435

A 3.8

B 4.6

10

7-1/2

7-1/2

7-1/2

1-1/4

3

110

20

491

445

B 4.0

B 4.8

10

7-1/2

7-1/2

7-1/2

1-1/4

3

115

21

491

470

B 4.2

B 5.0

10

7-1/2

7-1/2

7-1/2

1-1/4

3

120

22

491

490

B 4.4

B 5.2

15

10

7-1/2

7-1/2

1-1/4

3

126

23

491

515

B 4.6

B 5.6

15

10

7-1/2

7-1/2

1-1/4

3

131

24

491

535

B 4.8

B 5.8

15

10

10

7-1/2

1-1/4

3

138

25

491

560

B 5.0

B 6.0

15

10

10

7-1/2

1-1/4

3

142

26

491

580

B 5.2

B 6.2

15

10

10

7-1/2

1-1/4

3

148

27

491

605

B 5.4

B 6.4

15

10

10

10

1-1/4

3

153

28

491

625

B 5.6

B 6.6

15

10

10

10

1-1/2

3

160

29

491

650

B 5.8

B 7.0

15

15

10

10

1-1/2

3

165

30

491

670

B 6.0

 

15

15

15

10

1-1/2

3

165

30

691

400

B 4.4

B 5.2

15

15

10

10

1-1/2

3

170

31

491

695

B 6.2

B 7.4

15

15

15

10

1-1/2

3

173

31

691

420

B 4.6

B 5.6

15

15

10

10

1-1/2

3

181

32

491

740

B 6.6

B 8.0

15

15

15

15

1-1/2

3

180

32

691

440

B 4.8

B 5.8

15

15

10

10

1-1/2

3

188

34

691

455

B 5.0

B 6.0

20

15

10

10

1-1/2

3

195

35

691

475

B 5.2

B 6.2

20

15

10

10

1-1/2

3

203

36

691

495

B 5.4

B 6.4

20

15

15

10

1-1/2

3

 

 

Unloading large  tank cars, multiple vessels, barges or terminals

211

38

691

510

B 5.6

B 6.8

20

15

15

10

1-1/2

4

218

39

691

530

B 5.8

B 7.0

20

15

15

15

1-1/2

4

226

41

691

550

B 6.0

A 7.0

20

15

15

15

1-1/2

4

233

42

691

565

B 6.2

B 7.4

20

15

15

15

2

4

240

43

691

585

B 6.4

A 7.4

20

20

15

15

2

4

248

45

691

605

B 6.6

B 8.0

20

20

15

15

2

4

255

45

691

620

B 6.8

 

25

20

15

15

2

4

263

47

691

640

B 7.0

A 8.2

25

20

15

15

2

4

278

48

691

675

B 7.4

B 8.6

25

20

15

15

2

4

301

54

691

730

B 8.0

B 9.4

25

20

20

15

2

4

323

58

691

785

B 8.6

 

30

25

20

20

2

4

338

60

691

820

TB 9.0

A 10.6

30

25

20

20

2

4

459

82

D/FD891

580

5V 7.1

5V 8.5

40

30

30

30

3

6

633

113

D/FD891

800

5V 9.75

5V 11.8

 

40

40

30

3

6

 

Compressor repair Kits

part number

3549-x1

model number

90J3, 91J3

Suction valve assembly

3483-1X

discharge valve assembly

3485-X

Valve cage

—

Connecting rod bearing (pair)

1367

Packing set

1452-1X1

Piston rings

1772 (3)2

ring expanders

1775 (3)2

Gasket set1

2526-XA1

O-ring1

—

O-ring1

—

O-ring1

—

Oil seal

3259

Oil seal

—

Adapter plate gasket

—

Model 91 gasket set (2526-xA)

part number

description

Quantity

2-235A

O-ring, buna-N

2

2526

Crankcase gasket

1

2717

Valve gasket, aluminum

2

2729

Crankcase inspection plate gas

1

2-031A

O-ring, buna-N

2

2244

Inspection plate gasket

1

2716

Valve cap gasket, aluminum

2

2725

bearing carrier gasket

1

Flywheel Assembly bill of materials

Assembly number

Assembly name

 

3271-X2

Flywheel assembly (flywheel, hub, and three bolts)

3271

Flywheel: 14" O.d.,

2 groove

 

H SF-1.125

Hub with three bolts and lockwashers

Packing Assembly

ref no.

part no.

description

Qty

1.

2242

Cylinder

1

2.

2-235_a

O-ring for cylinder

1

3.

5000-137

retainer ring

1

4.

1012

Washer

1

5.

1628

Packing spring

1

6.

1714

Packing box washer

1

7.

1453-1

Male packing ring

1

8.

1454b

Packing ring

8

9.

1452-1

Female packing ring

1

10.

2240

Crosshead guides

1

11.

1387

Adjusting screw

1

12.

2526

Crankcase gasket

1

13.

1452-1X1

Packing set

1

Assembly number

Assembly name

1132-X2

Crosshead - piston-rod assembly

1452-2X1d

Packing set (alloy 50) with 1452-1,

1453-1, 1454-2 (8), 1626, 1714

Piston Assembly number 1983-x

ref no.

part no.

description

Qty

1.

7002-010OC100A

Screw, socket head

4

7207-010A

Lock washer

4

2.

1983

Head, iron

1

3.

1775

ring expander

3

4.

1772

Piston ring

3

5.

1482

Locknut

1

6.

1483

Lock pin

1

7.

1984

Piston platform

1

8.

1528

Shim washer, thick

As req.

1528-1

Shim washer, thin

9.

1527

Thrust washer

1

Four-Way Valve Repair Kits

description

trim

part number

Connection sizes

 

Four-Way Valve repair Kits

 

PTFE and buna-N trim

3122-X

1"

3123-X

1¼"

3130-X

2"

Head and valve bill of materials

ref no.

part no.

description

 

1.

2374

Head model 91

2374-Xa

Head assy. for model 91 (spec 3)

2374-X1

Head assy. for model 91 (spec 4)

2.

4302

Head model F91 (ANSI flange)

3.

7001-037 NC100A

bolt, 3/8-16 x 1" Gr.5 hex head

4.

2-235_c

O-ring

5.

2714-1

Valve cap

6.

2-031_c

O-ring

7.

2715

Holddown screw

 

8.

3483-1X

Suction valve assy. (spec 3)

3483-1X1b

Same as above but with copper gaskets

3483-1X2b

Same as above but with iron-lead gaskets

 

9.

3483-X

Suction valve assy. (spec 4)

3483-X1b

Same as above but with copper gaskets

3483-X2b

Same as above but with iron-lead gaskets

 

10.

3485-X

discharge valve assy. (all specs)

3485-X1b

Same as above but with copper gaskets

3485-X2b

Same as above but with iron-lead gaskets

 

11.

2717

Valve gasket (aluminum)

2717-1b

Valve gasket (copper)

2717-2b

Valve gasket (iron-lead)

12.

5000-77

retainer ring (spec 3)

13.

3977

Suction valve relief housing (spec 3)

14.

1411

Spring (spec 3)

15.

1410

ball (spec 3)

16.

3483-1

Suction valve seat (spec 3)

17.

3972

Suction valve plate (spec 3)

18.

4009

Suction spring (spec 3)

19.

3484

Suction valve bumper (spec 3)

20.

3483

Suction valve seat (spec 4)

21.

3972

Suction valve plate (spec 4)

22.

4009

Suction spring (spec 4)

23.

3484

Suction valve bumper (spec 4)

24.

3486

discharge valve bumper

25.

4008

discharge spring

26.

3973

discharge valve plate

27.

3485

discharge valve seat

Crankcase Assembly

ref no.

part no.

description

1.

3259

Oil seal

2.

1483

roll pin - 1/8 x 1"

3.

7001-037NC075A

Hex head 3/8-16 x 3/4", Gr 5

4.

3260

bearing carrier

5.

2796

breather ball

6.

1279-X

O-ring (part of bearing cap assembly)

7.

1279-X

breather cap assembly (with O-ring - ref. no. 6)

8.

2725

bearing carrier gasket

9.

1807

roll pin - 1/8 x 5/8"

10.

2718

bearing cup

11.

2723

Oil circulating ring

12.

2476

Crankshaft

13.

2719

bearing cone

14.

2289

Flywheel key

15.

2290

Oil ring retainer washer

16.

2554a

Crankcase

17.

1661

Pipe plug - 3/8 NPT sq. or hex

18.

2729

Inspection plate gasket

19.

2728

Crankcase inspection plate

20.

2-112_c

O-ring

21.

1368-X1

Oil bayonet assembly (with O-ring)

 

22.

2721

bearing adjustment shim (0.005)

2721-1

bearing adjustment shim (0.007)

2721-2

bearing adjustment shim (0.020)

23.

2720

bearing cap

Other Assemblies

Assembly number

Assembly name

2476-X

Crankshaft assembly with 2476, 2290 and 2719

2476-SXb

Extended crankshaft assembly with 2719 (2) and 2290, (optional)

3260-X

bearing carrier assembly with 3260, 2718, 3259, 1279-X, 2-111,

1483, 2796 and 1807

3271-X2b

Flywheel assembly 14" - 2 groove with H SF-1.125 and 3271

Connecting rod Assembly

ref no.

part no.

description

1.

1132-X2

Crosshead assembly

2.

1498

retainer ring

3.

2505

Wrist pin

4.

1846-Xa,b

Wrist pin bushing

5.

1599b

bolt

6.

1889-1X

Connecting rod assembly

7.

1889-1b

Connecting rod

8.

1367b

Connecting rod bearing

9.

2011b

dipper

10.

1600b,c

Nut

 

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