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Reliable Protection for Oil-Immersed Transformers

The YSF20-70/50SKJTHB Pressure Relief Valve is a safety protection device specially designed for oil-immersed transformers. It helps release excessive internal pressure caused by transformer faults, reducing the risk of tank deformation and ensuring safer transformer operation.

With a reliable structure and high-performance components, this pressure relief valve provides stable operation under demanding environmental conditions and is widely used in power transformers and distribution transformers.

Key Features

High Reliability
Designed for transformer safety protection, providing fast and reliable pressure release when abnormal internal pressure occurs.

Wide Operating Temperature Range
Suitable for operation from -40°C to +130°C, ensuring stable performance in different environmental conditions.

IP65 Protection Level
The sealed structure provides excellent protection against dust and water ingress, improving product durability.

Durable Materials

• Valve cover: ZL104 aluminum alloy
• Valve seat: 304 stainless steel
• Nameplate: 304 stainless steel
• Sealing material: EPDM rubber

Flexible Installation
Supports installation on the transformer tank top or side wall, meeting different transformer design requirements.

Technical Highlights

• Model: YSF20-70/50SKJTHB
• Contact capacity: AC230V/2A, DC24~250V/2A
• Insulation performance: AC2000V / 1 min
• Protection grade: IP65
• Surface treatment: RAL7035 coating, upgradeable to C5-M corrosion protection

Shenyang Deguang Electrical Technology Co., Ltd.
Professional manufacturer of transformer protection devices, providing reliable solutions for global transformer manufacturers and power industries.