Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Image not available
TRICOClosed Constant-Level Oilers

TRICO Closed Constant-Level Oiler, 1/2" NPT, Glass Reservoir

The TRICO Oiler Closed System Watchdog is a closed constant-level oiler with a 4 oz capacity glass reservoir and a 1/2" NPT mounting thread (MPN 31828). It is designed to maintain a consistent oil level in industrial…

SKU 3G-OTH-591659

Brand
TRICO
Item
Closed Constant-Level Oiler, 1/2" NPT, Glass Reservoir
Category
Closed Constant-Level Oilers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

TRICO
Manufacturer Part Number
31828
Type
Glass, NPT
Thread Size
1/2"
Mounting Thread Size
1/2"
Mounting Thread Type
NPT

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

TRICO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The TRICO Oiler Closed System Watchdog is a closed constant-level oiler with a 4 oz capacity glass reservoir and a 1/2" NPT mounting thread (MPN 31828). It is designed to maintain a consistent oil level in industrial equipment, using a glass sight for visual monitoring.

Frequently Asked Questions

What is the TRICO Oiler Closed System Watchdog used for?

The TRICO Oiler Closed System Watchdog maintains a consistent oil level in industrial equipment such as pumps, compressors, and bearings. Its closed system prevents contamination while the glass sight allows visual monitoring of oil level, reducing downtime and equipment wear.

What are the specifications of the TRICO Oiler Closed System Watchdog?

The TRICO Oiler Closed System Watchdog (MPN 31828) has a 4 oz capacity glass reservoir, a 1/2" NPT mounting thread, and a closed constant-level design. It is built for reliable oil delivery in industrial machinery, with a glass sight for easy level checks.

Where to buy the TRICO Oiler Closed System Watchdog worldwide?

3G Electric supplies the TRICO Oiler Closed System Watchdog to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this closed constant-level oiler.

How to install the TRICO Oiler Closed System Watchdog?

Install the TRICO Oiler Closed System Watchdog by threading it into a 1/2" NPT port on your equipment. Ensure the reservoir is vertical for accurate oil level reading. Fill with recommended oil, then monitor the glass sight during operation to confirm consistent lubrication.

Used in

Common applications for TRICO
Hydraulic system maintenance — TRICO hydraulic oil filter cart (MPN 36970) for portable fluid filtration in manufacturing plants.
Machining lubrication — TRICO Micro-Drop dispenser MD-1200 (MPN 30806) for minimum-quantity lubrication on CNC lathes and mills.
Drum pumping for coolant transfer — TRICO electric drum pump motor (MPN 30018) paired with a pump tube for bulk fluid handling.
Field filtration of hydraulic oil — TRICO handheld filter unit (MPN 30035) for on-site cleaning of reservoir oil in construction equipment.
Electrical panel fuse replacement — TRICO insulated fuse puller (MPN 38071) for safe removal of cartridge fuses in industrial control cabinets.
Pneumatic fluid transfer in remote areas — TRICO pneumatic drum pump motor (MPN 30019) for air-powered pumping where electricity is unavailable.

TRICO Products

3G Electric supplies TRICO closed constant-level oilers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
This OILITE thrust washer is made from SAE 841 bronze and measures 3 7/8 in outer diameter with a 0.25 in thickness. It is designed to handle axial loads in rotating machinery such as gearboxes, pumps, and conveyors. The self-lubricating bronze construction reduces friction and wear in applications with limited space or difficult maintenance access. RoHS certified, sold in a pack of 2
OILITE
This OILITE thrust washer is made from SAE 841 bronze and measures 3 7/8 in outer diameter with a 0.25 in thickness. It is designed to handle axial loads in rotating machinery such as gearboxes, pumps, and conveyors. The self-lubricating bronze construction reduces friction and wear in applications with limited space or difficult maintenance access. RoHS certified, sold in a pack of 2
This OILITE thrust washer is made from SAE 841 bronze, providing self-lubricating properties for maintenance-free operation. It has a 3/4 in outer diameter and 0.062 in thickness, designed to reduce friction and wear between rotating or sliding surfaces under axial loads. Suitable for use in industrial machinery and equipment. RoHS Certified. Sold in a pack of 10
OILITE
This OILITE thrust washer is made from SAE 841 bronze, providing self-lubricating properties for maintenance-free operation. It has a 3/4 in outer diameter and 0.062 in thickness, designed to reduce friction and wear between rotating or sliding surfaces under axial loads. Suitable for use in industrial machinery and equipment. RoHS Certified. Sold in a pack of 10
This general purpose lubricated metallic thrust washer is made from SAE 841 bronze and measures 3 1/2 in outer diameter with 0.187 in thickness. It is RoHS Certified and supplied in a 10-pack. Used to reduce axial friction and wear in rotating machinery such as gearboxes, pumps, and conveyors
OILITE
This general purpose lubricated metallic thrust washer is made from SAE 841 bronze and measures 3 1/2 in outer diameter with 0.187 in thickness. It is RoHS Certified and supplied in a 10-pack. Used to reduce axial friction and wear in rotating machinery such as gearboxes, pumps, and conveyors
This OILITE thrust washer is made from SAE 841 bronze, a self-lubricating material that reduces friction and wear between rotating and stationary surfaces. With a 7/16 in outer diameter and 0.062 in thickness, it is suitable for applications where axial loads are present. RoHS certified and sold in a 10-pack
OILITE
This OILITE thrust washer is made from SAE 841 bronze, a self-lubricating material that reduces friction and wear between rotating and stationary surfaces. With a 7/16 in outer diameter and 0.062 in thickness, it is suitable for applications where axial loads are present. RoHS certified and sold in a 10-pack
This OILITE thrust washer is made from SAE 841 bronze, a self-lubricating material that reduces friction between rotating and stationary surfaces. With a 1 3/8 in outer diameter and 0.062 in thickness, it is suitable for managing axial loads in power transmission assemblies. RoHS certified and supplied in a 10-pack
OILITE
This OILITE thrust washer is made from SAE 841 bronze, a self-lubricating material that reduces friction between rotating and stationary surfaces. With a 1 3/8 in outer diameter and 0.062 in thickness, it is suitable for managing axial loads in power transmission assemblies. RoHS certified and supplied in a 10-pack
This OILITE thrust washer is made from SAE 841 bronze, a self-lubricating material that reduces axial friction between rotating and stationary components. With a 3 1/4 in outer diameter and 0.125 in thickness, it is suited for applications such as gearboxes, pumps, and conveyors. The pack includes three washers and is Reach Certified
OILITE
This OILITE thrust washer is made from SAE 841 bronze, a self-lubricating material that reduces axial friction between rotating and stationary components. With a 3 1/4 in outer diameter and 0.125 in thickness, it is suited for applications such as gearboxes, pumps, and conveyors. The pack includes three washers and is Reach Certified

More from TRICO

View all TRICO parts →
Closed constant-level oiler with glass reservoir and 1/4" NPT mounting thread. Maintains preset oil level in enclosed sumps for automatic lubrication of bearings and moving parts. Transparent body enables visual level checks without system opening
TRICO
Closed constant-level oiler with glass reservoir and 1/4" NPT mounting thread. Maintains preset oil level in enclosed sumps for automatic lubrication of bearings and moving parts. Transparent body enables visual level checks without system opening
Closed constant-level oiler with glass reservoir and 1" NPT mounting thread. Maintains consistent oil level in bearing housings, gearboxes, and pumps, automatically replenishing oil to prevent dry starts and over-lubrication
TRICO
Closed constant-level oiler with glass reservoir and 1" NPT mounting thread. Maintains consistent oil level in bearing housings, gearboxes, and pumps, automatically replenishing oil to prevent dry starts and over-lubrication