Description
Specification for Corken 691
| Specifications | Model | ||||
| 91/F91 | 291/F291 | 491/F491 | 691/F691 | D891/FD891 | |
| Bore of cylinder: inches (mm) | 3.0 (76.2) | 3.0 (76.2) | 4.0 (101.6) | 4.5 (114.3) | 4.5 (114.3) |
| Stroke: inches (mm) | 2.5 (63.5) | 2.5 (63.5) | 3.0 (76.2) | 4.0 (101.6) | 4.0 (101.6) |
| Piston displacement cfm (m3/hr) | |||||
|
4.1 (7.0) | 8.2 (13.9) | 17.5 (29.7) | 29.5 (50.1) | 56.7 (96.3) |
|
8.4 (14.3) | 16.9 (28.7) | 36.0 (61.2) | 60.8 (103.3) | 117 (198.8) |
| Maximum working pressure: psig (bar g) | 335 (23.1) | 335 (23.1) | 335 (23.1) | 335 (23.1) | 450 (31.0) |
| Maximum brake horsepower: hp (kW) | 7.5 (5.6) | 15 (11) | 15 (11) | 35 (26.1) | 45 (34) |
| Maximum rod load: lb (kg) | 3,600 (1,633) | 3,600 (1,633) | 4,000 (1,814) | 7,000 (3,175) | 7,000 (3,175) |
| Maximum outlet temperature: ยฐF (ยฐC) | 350 (177) | ||||
| Minimum inlet temperature: ยฐF (ยฐC) | -25 (-32) | ||||
| Bare unit weight: lb (kg) | 150 (68.0) | 210 (95.2) | 390 (176.9) | 745 (337.9) | 900 (408.2) |
| Maximum flow-propane: gpm (m3/hr) | 50 (11.4) | 101 (22.9) | 215 (48.8) | 361 (82.0) | 694 (157.6) |
| Class 300 RF flange/DIN flange option | Yes | Yes | Yes | Yes | No |
Corken 691 – LPG Reciprocating Compressors (Non Oil-Free)
Single packed compressors are typically used in non-toxic, non-corrosive applications where oil-free gas and leakage containment are not critical. LPG (propaneย &ย butane), agriculturalย ammonia, and natural gas applications are where a single packed compressor fits well.
- Utilizes one set of V-ring packing per piston rod
- No distance piece between the cylinder and crosshead guide
- Not oil free
- Single stage compression
- Ideal for non-toxic, non-corrosive applications where oil-free gas and leakage containment are not critical
Features and Benefits for Corken 691
- Why select aย compressor to transfer LPG and NH3? –ย Many LPG piping systems do notย provide ideal NPSH conditions forย liquid pumps. As a result, the poorย NPSH conditions lead to excessiveย pump maintenance. Since compressorsย are only exposed to vapors, they are notย affected by poor NPSH conditions. Aย compressor is the perfect solution forย transferring liquids to and from tanksย with unloading connections on the topย (e.g. tank cars and underground tanks)
- Maximum versatility… –ย A compressor can be piped for multipleย plant applications. Many times a tank carย unloading compressor is utilized to loadย and unload trucks as well.ย Common applications include liquid transferย between tanks, off-load/load-out liquids,ย vapor recovery, and performing tankย evacuation for maintenance purposes.
- Several models to matchย your needs… –ย Corken offers five sizes of vertical,ย single-stage compressors (Models 91,ย 291, 491, 691, and 891) for LPG/NH3ย applications. The compressors areย available with threaded NPT or Classย 300 RF flanged connections andย cover a full range of capacitiesย ranging from 4.1 to 117 cfm (7.0 toย 198.8 m3/hr) of liquid transfer. Theย Class 300 RF flange dramaticallyย improves leakage containment andย structural integrity
- Piston rod packing designโฆ
- Single-stage design…
- Single-acting designs with a wideย range of capacities…
- Double-acting design for evenย greater capacity…
- Maintenance made simple…
- Designed for a varietyย of applicationsโฆ
- Custom engineered compressorย packages available…
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TAN LONG TECHNOLOGY SOLUTIONS CO., LTD
Address:ย 146/18 Nguyen Huu Tho St., Phuoc Kien Ward, Nha Be Dist., HCMC, Viet Nam
Telephone: (+84)-8 3781 5635/36/37
Email:ย sales@tanlongvietnam.comย |ย contact@tanlongvietnam.com
Website:ย www.tanlongvietnam.com

