RADIASTAR Vertical External Oil-Type Corrugated Conservator Tank

Product Introduction

Sealed, Maintenance-Free Oil Preservation Solution for Transformers

The BP1 Internal Oil Type Metal Corrugated Conservator Tank is an advanced oil expansion and protection system designed for oil-immersed transformers.

Unlike traditional conservators, this design features a fully sealed stainless steel corrugated core filled with oil, ensuring zero contamination, stable insulation performance, and long-term reliability.

Engineered with micro-positive pressure technology, the BP1 series effectively prevents external air from entering the transformer, significantly enhancing operational safety and lifespan.

Product Overview

Designed for oil volume compensationin transformers
Acts as a critical oil protection system
Fully compliant with JB/T 6484-2016 Transformer Conservator Standard
Suitable for modern sealed transformer systems

Product Structure

The BP1 conservator tank consists of:

Main Tank Body
Stainless Steel Corrugated Core (Oil-Filled)
Oil Transfer Pipeline
Oil Filling & Draining Pipes
Air Vent System
Oil Level Indicator
High & Low Oil Level Alarm Device

Working Principle

The internal oil-filled corrugated core operates in a micro-positive pressure state, allowing:

Oil expansion → corrugated core expands
Oil contraction → corrugated core contracts

This ensures accurate oil volume compensation, while preventing any contact between external contaminants and transformer oil.

Key Features & Competitive Advantages

1. No Silica Gel Breather Required

The fully sealed structure eliminates the need for a breather:

Internal: filled with transformer oil
External: exposed to atmosphere
Simplified system, reduced maintenance

2. Micro-Positive Pressure Protection

Maintains a slight internal positive pressure:

Prevents air ingress
Enhances transformer safety and reliability

3. Zero Contamination Design

Stainless steel corrugated core
Zero permeability (no air or moisture ingress)
Ensures clean oil and stable dielectric strength

4. Ultra-Long Service Life

Corrugated core lifespan up to 40 years
Truly maintenance-free operation
Lower total lifecycle cost

5. Accurate Oil Level Indication (No False Level)

Indicator mounted on corrugated core
Moves synchronously with oil expansion
Direct, accurate, and reliable reading

6. No Jamming / Smooth Operation

Vertical movement design
Uniform force distribution
No mechanical blockage or sticking

7. Intelligent Monitoring System (Optional)

High & low oil level alarms
Optional digital controller
4–20mA output for SCADA / remote monitoring
Smart system integration:

Real-time oil level display
Remote access via mobile
Automatic alarm notifications
Supports unmanned substation operation

8. Strong Environmental Adaptability

Designed for harsh operating conditions:

High humidity & tropical climates
High temperature / desert environments
Extreme cold regions
Coastal & high-salinity areas
Heavy industrial & chemical environments
Custom design available based on project requirements

Frequently Asked Questions

Answers to common pre-sales, technical and after-sales questions about transformers.

Are you a transformer conservator manufacturer or trading company?

We are a professional transformer conservator manufacturer with in-house fabrication, welding, and testing facilities.
👉 This ensures stable quality, faster delivery, and competitive factory pricing.

Why choose your transformer oil conservator supplier?

Direct oil conservator tank factory
Strong custom fabrication capability
15+ years export experience
Fast quotation within 12 hours
👉 We mainly serve transformer manufacturers and EPC contractors.

What types of transformer conservators do you offer?

We supply:
Conventional oil conservator tanks
Diaphragm type conservators
Bladder type conservators
Conservators with oil level indicator
👉 Suitable for oil immersed transformers.

What is the function of a transformer oil conservator?

The conservator is used to:
Compensate oil volume changes
Prevent moisture ingress
Maintain oil quality
👉 Essential for reliable transformer operation and insulation protection.

Can you manufacture custom transformer conservators based on drawings?

Yes, we specialize in custom transformer conservator fabrication based on:
CAD drawings
Technical specifications
Transformer design
👉 OEM & ODM supported.

What materials are used for oil conservator tanks?

We use high-quality:
Carbon steel (Q235 / Q345)
👉 With anti-corrosion treatment for long outdoor service life.

What accessories can be supplied with the conservator?

We can provide:
Oil level indicator (magnetic / glass)
Breather connection
Buchholz relay connection
Valves and flanges
👉 Fully compatible with transformer systems.

What is the difference between diaphragm and bladder type conservators?

Diaphragm type: uses a membrane to separate oil and air
Bladder type: uses a rubber bag for better sealing
👉 Both help prevent:
Moisture ingress
Oil oxidation

How do you prevent oil contamination?

We design:
Airtight sealing structure
High-quality diaphragm/bladder system
👉 Ensuring long-term performance in oil immersed transformer applications.

What tests are conducted before delivery?

Leakage test
Pressure test
Coating inspection
👉 Every unit is tested before shipment.

What standards do your conservators comply with?

IEC standards
ISO quality management system
👉 Suitable for international projects.

What information is required for a quotation?

To provide an accurate quotation, please share:
Transformer capacity (kVA / MVA)
Voltage level
Conservator type (normal / diaphragm / bladder)
Required volume
Drawings (preferred)
Quantity
👉 Drawings will significantly speed up quotation.

Have you supplied conservators for international projects?

Yes, our transformer oil conservator tanks are widely used in:
Substation projects
Power distribution systems
Industrial transformers
Markets:
👉 Southeast Asia / Africa / Middle East / South America

Can you support bulk orders?

Yes:
Stable production capacity
On-time delivery
EPC project support

What is your delivery time?

Standard: 7–10 days
Custom: 15–30 days

What are your payment terms?

We support:
T/T
L/C

Internal Oil Type Corrugated Transformer Conservator Tank (BP1 Series)