Fellow Kogyo P-2 Oil Level Detector & Level Controller
Fellow Kogyo Co., Ltd.
New product
The Fellow Kogyo P-2 is a Japanese level-detection device encountered in marine oily water separator and bilge-separator installations. Depending on the spare-parts catalogue or supplier terminology, the same model is commonly searched as a P-2 Level Controller, P-2 Oil Level Detector, P-2 Level Sensor, P-2 Level Probe or capacitance level controller. Marine equipment records specifically document a Fellow Kogyo P-2 oil level detector in an oily water separator application.
The SM MARINE SERVICE™ stock unit shown here carries the following identification:
Manufacturer: FELLOW KOGYO CO., LTD.
Model: P-2
Serial No.: 9243
Date Marking: 2014-7
Manufacturer Location: Tokyo, Japan
Nameplate Reference: NP-04-1
Product Category: Level Controller / Oil Level Detector / Level Probe
Marine Application: Oily Water Separator / Bilge Separator level detection
The long probe construction visible on the P-2 is consistent with its role as a level-detection device rather than a conventional pressure or temperature sensor.
The P-2 is used for liquid/oil level detection in compatible marine equipment. In oily water separator installations, reliable level detection is important for the automatic operating sequence and safe control of the separation process.
Independent marine documentation for a TAIKO oily water separator specifically records a Fellow Kogyo P-2 oil level detector, while current marine spare-parts listings consistently identify P-2 as a Fellow Kogyo level controller.
Fellow Kogyo itself is a Japanese manufacturer whose current product portfolio includes level switches, continuous level measuring equipment and oil-content monitoring equipment, confirming the company's established activity in this field.
For Fellow Kogyo and other marine OWS equipment, buyers can contact SM MARINE SERVICE™ for worldwide sourcing.
In an appropriate oily-water-separator or related level-control installation, the P-2 is used to detect the required liquid/interface level and provide the necessary level condition to the associated control arrangement.
Its practical role may include supporting automatic operating sequences, liquid-level monitoring and control functions associated with the installed separator.
The exact switching/control sequence is determined by the vessel's equipment design. Therefore, the P-2 should always be matched to the original separator documentation rather than wired according to assumptions from another installation.
This is an important SEO and technical identification point.
Marine documentation specifically associates P-2 with oily water separator equipment, and another marine spare-parts catalogue describes Fellow Kogyo P-2-A as a Bilge Alarm System with separate oil level detector references.
This means buyers may search for this family using several different phrases:
Fellow Kogyo P-2 Oil Level Detector
Fellow Kogyo P-2 Level Controller
Fellow Kogyo P-2 OWS Sensor
Fellow Kogyo P-2 Level Probe
Fellow Kogyo P-2 Bilge Separator Sensor
All of these search intents are relevant for sourcing, although the exact terminology in a vessel's manual should take priority.
Several closely related Fellow Kogyo references appear in marine spare-parts and equipment records.
P-1 is another Fellow Kogyo level-controller model frequently listed alongside P-2. Commercial marine references identify both P-1 and P-2 as capacitance level controllers.
P-2-A appears in marine records as a Fellow Kogyo Bilge Alarm System, with oil-level-detector references 10017807/3 and 10017808/4.
Other P-2 market identification references include NP-04-1, P2-17667, and P2-38C7601.
These references are useful when searching for obsolete or legacy spares, but P-1, P-2 and P-2-A should not automatically be considered interchangeable. Probe length, mechanical connection, electrical arrangement and system application should be verified before replacement.
The Fellow Kogyo P-2 is particularly relevant to marine pollution-control and liquid-level-control equipment.
Documented and relevant applications include marine Oily Water Separators (OWS), bilge separator systems, oil/water interface or liquid-level detection arrangements and associated marine machinery control systems.
One documented example places a P-2 oil level detector in a TAIKO KIKAI oily water separator installation.
This makes the model especially important for chief engineers, marine engineers, technical superintendents and purchasing departments searching for replacement OWS level-detection components.
Before replacing a Fellow Kogyo P-2, engineers should compare the complete identification of the existing unit.
Important items include the P-2 model designation, probe length, NP/reference marking, mounting/thread connection, connector arrangement and the separator manufacturer's drawing or spare-parts list.
A market example of P-2 is specifically described as a 225 mm P2-38C7601 unit, demonstrating why probe length/reference should not be ignored during sourcing.
A physically similar Fellow Kogyo probe is therefore not necessarily a direct replacement.
Inspect the probe for contamination, oily deposits or other material that could affect level detection. Check the installation against the equipment manufacturer's maintenance procedure before cleaning.
Inspect the associated wiring, terminals, connectors and controller circuit. Verify that the problem is actually at the P-2 probe rather than elsewhere in the separator control system.
Loose electrical connections, contamination, damaged cabling or deterioration of an older sensing assembly may result in intermittent operation.
Because the P-2 can form part of a larger OWS control sequence, an apparent level-sensor problem can also originate from the associated control circuit, relay, solenoid valve or other separator component.
Compare the probe length, process connection and full reference with the removed unit. Do not select a replacement only because both units are marked P-2.
SM MARINE SERVICE™ supports worldwide sourcing and supply of Fellow Kogyo P-2 Level Controllers, Oil Level Detectors and marine oily water separator spare parts.
Depending on availability, customers can request new, used, refurbished or reconditioned equipment.
For the safest replacement matching, please provide a clear photograph of the existing nameplate together with the model, serial/reference number, probe length, separator manufacturer/model and required quantity.
SM MARINE SERVICE™ also supplies other 15ppm bilge alarm and oil-content-monitoring equipment, including Fellow Kogyo FOCAS-series equipment and other major marine pollution-control brands. You can browse marine equipment through SM MARINE SERVICE™ Marine Equipment Supply.
Fellow Kogyo is also well known in the marine industry for its FOCAS oil-content-monitoring equipment.
The manufacturer's official website currently provides information covering its oil concentration meters and 15ppm Bilge Alarm products. Fellow Kogyo has also published official support and calibration information for FOCAS equipment.
For older FOCAS-1500C/1500E equipment, Fellow Kogyo officially announced discontinuation and recommended consideration of FOCAS-2000 for future replacement/support.
This FOCAS information is related to Fellow Kogyo's broader marine product family; it does not mean that the P-2 itself is a 15ppm oil-content monitor.
Older marine oily water separators can remain operational for many years. When a level detector fails, replacing an entire separator installation may be unnecessary if the correct legacy spare can still be sourced.
For that reason, Fellow Kogyo P-2, along with related P-1 and specific P-2 references, continues to appear in the international marine spare-parts market.
Correct identification is particularly important because ships may search for the same component under different descriptions—level controller, oil level detector, level sensor, level probe or OWS sensor.
The P-2 is a Fellow Kogyo level-control/detection device encountered in marine oily water separator applications. Marine records describe it as both a Level Controller and Oil Level Detector.
Yes, P-2 is documented as an oil-level detector in oily water separator equipment.
No evidence found in the researched sources identifies this P-2 as a pressure sensor. The available marine references consistently identify it as a level controller/oil-level detector.
NP-04-1 appears as a reference marking associated with P-2 units in available market records and is also visible on the photographed unit.
P2-17667 is one secondary-market reference associated with a Fellow Kogyo P-2 level controller. It should be checked against the original equipment before being treated as a replacement reference.
A market listing identifies P2-38C7601 with a Fellow Kogyo P-2, NP-04-1, 225-mm level controller.
They are related Fellow Kogyo level-controller models, but they should not automatically be treated as interchangeable. Both model numbers are separately documented.
No such interchangeability should be assumed. P-2-A is separately documented as a Fellow Kogyo Bilge Alarm System.
SM MARINE SERVICE™ can support worldwide sourcing of Fellow Kogyo P-2 and related marine OWS spare parts, subject to current stock availability.
Fellow Kogyo P-2 Level Controller / Oil Level Detector is a Japanese marine level-detection component used in compatible oily water separator and bilge-separator installations. Search references include P-2, P2, NP-04-1, P2-17667 and P2-38C7601, while P-1 and P-2-A are related Fellow Kogyo references that require separate compatibility verification. SM MARINE SERVICE™ supplies marine OWS sensors, level controllers and separator spare parts worldwide in new, used, refurbished and reconditioned condition, subject to availability.
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