Dofun Pilot Valve Series: How Small Signals Drive Large Flows – The Control Amplifier Principle Explained
1. What a Pilot Valve Does in Dofun Refrigeration Systems A pilot valve is the small-signal stage. It does not […]
Corporate Social Responsibility Report: Dofun’s Commitment to Local Employment, Community Education, and Environmental Protection
1. CSR Framework Aligned with Dofun’s Four Values Dofun states four operating values—Quality as Foundation, User as Priority, Environmental Friendliness, […]
Shutdown Protection: Freeze Prevention and Drainage Guide for Refrigeration Valves in Low Temperatures
Why Low-Temperature Shutdown Creates Freeze and Overpressure Risks When a refrigeration system is stopped for winter, seasonal downtime, maintenance, or […]
Optimize Valve Inventory: Reduce Spare Parts Costs Using Dofun’s CTP Modular Concept
Why Refrigeration Valve Spare Inventory Becomes Expensive Industrial refrigeration and process cooling plants usually do not fail because valves are […]
Values-Driven Growth: How Dofun’s Craftsmanship Culture Lives in Every Employee’s Daily Work
Quality as Foundation: Precision Work in Every Production Step Dofun states the principle “Quality as Foundation” and applies it as […]
Building a Resilient Supply Chain: Dofun’s Strategic Partnerships and Lean Management for Long-Term Raw Material Stability
A refrigeration valve is only as reliable as the materials inside it. For ammonia plants, low-temperature CO₂ systems, stainless-steel utility […]
Ammonia Refrigeration Valves: How Dofun Addresses Low-Temperature Material Integrity, Leak Prevention, and Overpressure Protection
Ammonia (R717) is widely used in industrial refrigeration because of its thermodynamic efficiency and low direct global warming potential, but […]
Ammonia Refrigeration Valves in Harsh Environments: Corrosion Resistance, Safety Compliance, and Long-Cycle Operation
Ammonia (R717) remains one of the most efficient and widely used industrial refrigerants, but it is also unforgiving in harsh […]
The Heart of Safety Valves: How Dofun SRV Series Spring Adjustment and Seat Technology Prevent Overpressure Hazards
A safety valve is the last automatic barrier between a pressurized refrigeration or process system and an overpressure accident. When […]