RADIASTAR Vertical External Oil-Type Corrugated Conservator Tank

Product Introduction

High-Performance Sealed Oil Expansion Solution

The Vertical External Oil Type Corrugated Conservator Tank for Transformers is an advanced oil preservation system designed for oil-immersed transformers. By integrating a stainless steel corrugated diaphragm, it effectively isolates transformer oil from air, preventing oxidation and moisture contamination.

This ensures longer transformer lifespan, stable insulation performance, and reduced maintenance costs, making it an ideal solution for modern power distribution systems.

Product Structure

The conservator tank is composed of:

Main Tank Body
Stainless Steel Corrugated Core (Diaphragm)
Oil Transfer Pipeline System
Oil Filling & Draining Pipes
Air Vent Pipe
Breathing Pipe
Oil Level Indicator
Oil Level Alarm Device

Working Principle

The system uses a metal corrugated diaphragm to completely separate transformer oil from ambient air.

When oil temperature rises → oil expands → corrugated core expands
When oil temperature drops → oil contracts → corrugated core shrinks

This dynamic movement provides accurate oil volume compensation, while maintaining a fully sealed internal environment, preventing oil degradation and preserving dielectric strength.

Key Features & Benefits

1. Long Service Life & Low Maintenance

Designed for durability with minimal maintenance requirements, reducing total lifecycle cost.

2. Fully Sealed Transformer Protection

Complete isolation of oil and air eliminates oxidation, moisture ingress, and contamination.

3. High Sensitivity Corrugated Core

The stainless steel corrugated structure ensures:

Fast response to oil volume changes
Stable and reliable operation

4. Low Operating Pressure

Maximum working pressure: ≤ 8 kPa
Ensures safe and stable transformer operation.

5. Accurate Oil Level Monitoring

Clear and precise oil level indication
Easy visual inspection

6. Intelligent Monitoring System (Optional)

High & low oil level alarm
Optional digital controller
4–20mA outputfor remote monitoring and SCADA integration

7. Optimized Vertical Expansion Design

Downward expansion structure
Uniform stress distribution in oil
No jamming or mechanical blockage

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

Vertical External Oil Type Corrugated Conservator Tank

Product Introduction

Product Structure

Working Principle

Key Features & Benefits

5. Accurate Oil Level Monitoring

PRODUCTION ABILITY

Frequently Asked Questions

Are you a transformer conservator manufacturer or trading company?

Why choose your transformer oil conservator supplier?

What types of transformer conservators do you offer?

What is the function of a transformer oil conservator?

Can you manufacture custom transformer conservators based on drawings?

What materials are used for oil conservator tanks?

What accessories can be supplied with the conservator?

What is the difference between diaphragm and bladder type conservators?

How do you prevent oil contamination?

What tests are conducted before delivery?

What standards do your conservators comply with?

What information is required for a quotation?

Have you supplied conservators for international projects?

Can you support bulk orders?

What is your delivery time?

What are your payment terms?

CERTIFIED PATENTS

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