Hebei Anmei Electrical Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of mechanical pressure relief valve for transformer in China, also supports customized service. If you're going to buy high quality mechanical pressure relief valve for transformer made in China, welcome to get quotation from our factory.
Technical Parameters
• Nominal diameter: DN40–DN200
• Opening pressure: 30–150kPa (customizable)
• Working temperature: -40℃~+90℃
• Action mode: automatic opening and reset
• Sealing performance: zero leakage under rated pressure
• Protection class: IP65
• Applicable medium: transformer oil

Product Details
This mechanical pressure relief valve is a key safety device for oil-immersed transformers. It uses a reliable mechanical spring mechanism to monitor the internal pressure of the transformer tank in real time. When abnormal overpressure occurs inside the equipment, the valve opens quickly to release pressure; after the pressure returns to normal, it automatically resets and maintains good sealing. It can also be equipped with a signal contact to provide remote alarm output, effectively protecting the transformer from damage caused by overpressure.
Product Features

1. Stable mechanical structure, high opening accuracy and reliable action
2. Quick pressure relief with large flow, preventing tank deformation or rupture
3. Automatic reset, good sealing, long service life and maintenance-free
4. Compact design, easy to install and replace on various transformers
5. Strong environmental adaptability, suitable for indoor and outdoor power equipment
Advantages of Hebei Anmei Electric Equipment Co., Ltd.
Hebei Anmei Electric Equipment Co., Ltd. has professional R&D and production capacity for transformer accessories. We implement strict quality control in material selection, processing and finished product testing, ensuring stable and consistent product performance. With mature production technology and complete certification, we support customized pressure and connection size. We provide efficient pre-sales consultation and after-sales service, and are a long-term stable supplier of complete sets of power equipment at home and abroad.
Anmei Electric is a high-tech enterprise with over 30 years of deep engagement in transformer bushings. It specializes in R&D, production and sales of bushings for oil-immersed transformers of 40.5KV and below, boasting diverse products compliant with global standards, superior production capacity and quality control. Its products are exported to dozens of countries, widely used in power transmission & transformation and new energy scenarios, meeting the needs of global energy transition.

01
Profound Industry Experience
Over 30 years of focus on bushings, solid technical strength, and focus on core scenarios of medium and low-voltage power transmission & transformation and new energy supporting facilities
02
Diversified Product System
A full range of bushing types, compliant with international standards (US, EU, Australia, Germany, etc.); special models for wind and solar transformers adapted to harsh new energy working conditions
03
Efficient Production Capacity Response
Supported by automated production lines, daily output of over 2,000 sets, capable of quickly undertaking large orders and customized demands
04
Improved Quality Control System
Certified by multiple international systems, closed-loop management of the whole process, and product quality recognized by the global market
FAQ
Q: What are the key specifications of the Panel Mounted LV Epoxy Bushing?
A: Rated voltage: 2.5kV; Rated current: 3500A; Power frequency withstand voltage: 15kV/1min; Lightning impulse: 45kV; Cantilever tolerance: 3150N; Creepage distance: ≥70mm.
Q: What is the main application of this product?
A: It is mainly used for box-type distribution transformers, providing insulation, support, sealing and connection functions for low-voltage, high-current conductors.
Q: Where is the product manufactured, and what certifications does it have?
A: It is originally produced in Hebei, China, and has obtained ISO9001, ISO14001 and other relevant certifications.
Q: What are the payment terms and delivery time?
A: Payment terms: TT, LC; Delivery date: Negotiable. For one container, delivery takes 15-20 days; small orders (3-5 pcs) can be delivered soon with stock.
Q: What tests does the product pass, and what raw materials are used?
A: Tests include dielectric tests, mechanical strengthen tests, environmental test, X-ray test, etc.; Raw materials: High-grade imported epoxy resin (Huntsman) and high-quality T2 copper.
Hot Tags: mechanical pressure relief valve for transformer, China mechanical pressure relief valve for transformer manufacturers, suppliers, factory
