Overview of High-Quality Full Lift Open Safety Valves TOS-4N8-64 DN80 Safety Relief Valves Steam Boiler Safety Valve

High-Quality Full Lift Open Safety Valves TOS-4N8-64 DN80 Safety Relief Valves Steam Boiler Safety Valve is engineered for superior performance in plumbing, industrial, and commercial applications. Made from lead-free, corrosion-resistant brass, these valves ensure long-lasting durability and reliable flow control for water, gas, oil, and other fluids.

With precision machining and robust construction, our brass valves provide smooth operation, excellent sealing, and resistance to high pressure—making them ideal for residential, commercial, and industrial piping systems.

Key Features of High-Quality Full Lift Open Safety Valves TOS-4N8-64 DN80 Safety Relief Valves Steam Boiler Safety Valve

Premium Brass Construction – Lead-free, corrosion-resistant, and durable

Leak-Proof Design – Tight seals for secure fluid control

High Pressure & Temperature Resistance – Reliable performance under demanding conditions

Smooth Operation – Easy-to-turn handles for precise flow adjustment

Versatile Applications – Compatible with water, gas, oil, and HVAC systems

Multiple Size & Connection Options – Available in ¼” to 2″ sizes (NPT, BSP threads)

(High-Quality Full Lift Open Safety Valves TOS-4N8-64 DN80 Safety Relief Valves Steam Boiler Safety Valve)

Specification of High-Quality Full Lift Open Safety Valves TOS-4N8-64 DN80 Safety Relief Valves Steam Boiler Safety Valve

Right here’s the item web content for the TOS-4N8-64 DN80 Security Valve:

The TOS-4N8-64 DN80 is a high-quality Full Lift Open Safety And Security Shutoff. It shields vapor central heating boilers and various other pressure vessels. This shutoff releases excess pressure instantly. It avoids hazardous overpressure situations. The valve opens completely when stress surpasses the set point. This quick opening guarantees maximum circulation capacity. It promptly brings system stress back to safe levels.

This valve is developed for steam service. It deals with saturated vapor effectively. The nominal dimension is DN80. This gives a huge discharge area. The valve matches systems needing considerable pressure relief. The pressure setup variety is flexible. It usually covers 0.1 MPa to 0.8 MPa. Particular settings are manufacturing facility adjusted. This makes sure specific opening pressure. Blowdown is set listed below 15%. This protects against valve re-closing concerns. The valve reseats securely as soon as stress stabilizes.

Maximum running temperature is ≤ 300 ° C. Construction makes use of long lasting materials. The body is solid brass. Inner components are stainless-steel. This provides superb resistance to steam corrosion. It makes certain lengthy life span under difficult conditions. The valve includes a closed hood layout. This guides discharge securely upwards. It safeguards personnel and devices nearby. A lifting lever is conventional. This enables manual screening for appropriate operation. Regular screening is necessary for safety and security.

The shutoff satisfies stringent industry criteria. It abides by ASME Area I for power central heating boilers. It likewise carries CE marking. This validates compliance with European security instructions. Installation calls for right orientation. Mount it up and down on the central heating boiler drum or header. Guarantee the discharge electrical outlet is unhampered. Appropriate upkeep is essential. Check the valve regularly. Replace it if damage or too much wear is discovered. This valve supplies trustworthy overpressure protection. It is essential for vapor central heating boiler safety and security.

(High-Quality Full Lift Open Safety Valves TOS-4N8-64 DN80 Safety Relief Valves Steam Boiler Safety Valve)

Applications of High-Quality Full Lift Open Safety Valves TOS-4N8-64 DN80 Safety Relief Valves Steam Boiler Safety Valve

Premium full lift open security shutoffs like the TOS-4N8-64 DN80 are important for steam central heating boiler safety. They secure devices and individuals. These shutoffs instantly open if pressure inside a boiler gets too high. This avoids dangerous surges. The “full lift” style indicates the valve opens up fully extremely fast. This launches a big quantity of steam or gas promptly. It brings stress down fast.

The TOS-4N8-64 DN80 valve is constructed tough for heavy steam central heating boiler jobs. It deals with high temperatures and pressures common in central heating boilers. The DN80 size reveals its large circulation ability. Huge boilers require shutoffs that can release vapor quick sufficient. This shutoff does that task.

Its primary usage is directly on vapor boilers. It functions as the last line of defense versus overpressure. Factories, power plants, and heating unit all depend on these shutoffs. They are additionally used on various other pressurized vessels linked to steam systems. Pressure vessels holding heavy steam requirement protection as well. This shutoff supplies it.

The layout concentrates on trustworthy opening at the exact collection stress. This accuracy is vital. It likewise shuts securely as soon as stress returns to normal. This quits steam waste. The shutoff utilizes a springtime device. The spring force holds the shutoff closed. Increasing pressure gets rid of the springtime force. The shutoff stands out open. When stress drops, the springtime pushes it closed again.

Durability is crucial. These valves face severe conditions. Heavy steam is harsh. Heats stress materials. The TOS-4N8-64 utilizes solid products to stand up to wear and rust. It needs marginal maintenance. Normal testing ensures it works when needed. Safety and security depends on it.

Packing and Shipment

Depends on the products and qty,we could make the packing of coiling,rolls,bundle packing,crates or boxes,etc.

Shipment:By sea,railway,by air or as customer’s request.

Company Profile

Luoyang Datang Energy Tech Co., Ltd. is a leading Chinese manufacturer specializing in high-quality plastic pipes and fittings. Equipped with state-of-the-art automated production lines and supported by a team of 200 professionals, we offer an extensive product line comprising over 150 types of plastic pipes and fittings designed for water supply and drainage systems, gas transmission, and floor heating systems. Our main products include PVC Pipes and Fittings, PE (HDPE) Pipes and Fittings, PPR Pipes and Fittings, and PEX Floor Heating Pipes. 

Should you have any inquiries regarding HDPE Pipe Fitting, please do not hesitate to contact us!

Tel.:0086-183 3790 0677

Wechat: 0086-183 3790 0677

Whatsapp: 0086-183 3790 0677

Email: sales@pipesandfittings.net

Payment Terms

T/T,L/C at sight,Western Union & Paypal,etc.

5 FAQs of High-Quality Full Lift Open Safety Valves TOS-4N8-64 DN80 Safety Relief Valves Steam Boiler Safety Valve

What does the TOS-4N8-64 DN80 safety valve do?
It protects steam boilers. Too much pressure inside a boiler is dangerous. This valve opens fast if pressure gets too high. It releases steam quickly. This action stops the boiler from breaking or exploding. It keeps people and equipment safe.

How is the opening pressure set?
The pressure setting is fixed at the factory. Experts set it precisely before the valve ships. You cannot easily change it yourself. The setting matches the boiler’s maximum safe working pressure. Always check the valve’s nameplate for its exact setting. Install it correctly. Never adjust it without special tools and training.

Is this valve certified for steam boilers?
Yes. The TOS-4N8-64 DN80 meets strict standards. It has ASME certification. This means it follows international safety rules for pressure relief. You can use it on steam boilers legally. The certification guarantees its design and performance are reliable. Look for the ASME stamp on the valve.

How often should I check this safety valve?
Check it regularly. Follow the boiler maker’s rules and local laws. Inspections typically happen yearly. A trained technician must do the inspection. They test the valve works right. They look for damage or leaks. Never ignore maintenance. A faulty valve won’t protect your boiler.

Why is the DN80 size important?
Size matters a lot. DN80 means the valve opening is 80 millimeters wide. This size must fit the boiler’s steam output. A valve too small cannot vent steam fast enough. Pressure might still rise dangerously. A valve too large is wasteful and might cause problems. Engineers calculate the exact size needed for safe operation. Use the size specified for your boiler.

(High-Quality Full Lift Open Safety Valves TOS-4N8-64 DN80 Safety Relief Valves Steam Boiler Safety Valve)