1. Material Parameters

• Valve Body/Goblin: Cast steel (WCB, standard operating conditions), stainless steel (304/316, corrosion resistant), chrome-molybdenum steel (WC6/WC9, high temperature and high pressure conditions)

• Valve Core/Seat: Stainless steel (304/316) + hard alloy weld overlay (wear-resistant and erosion-resistant), PTFE-coated valve core (soft seal, zero leakage)

• Valve Stem: 304/316 stainless steel (corrosion resistant, anti-lock, surface polished)

• Electric Actuator: Intelligent electronic actuator, cast aluminum housing (lightweight and rust-proof), optional stainless steel housing (for highly corrosive environments)

2. Specification Parameters

• Nominal Diameter: DN15~DN200 (corresponding to 1/2"~8")

• Nominal Pressure: PN16, PN25, PN40, PN63 (suitable for medium and high pressure pipeline systems)

• Connection Method: Flange connection (GB/T, ANSI, DIN) 1. Standard, welded connection (optional for high-pressure conditions)

2. Control and Operating Parameters

• Input Signal: 4-20mA DC analog signal (standard), 0-10V DC (optional)

•Output Feedback: 4-20mA DC valve position feedback signal (real-time transmission of valve opening)

•Power Supply Voltage: AC220V (standard), DC24V (optional for explosion-proof applications)

• Protection Rating: Actuator IP65 (standard dustproof and waterproof), optional IP67/IP68 (high protection, waterproof immersion)

•Explosion-proof Rating: Optional Ex d II BT4/Ex d II CT6 (suitable for flammable and explosive environments)

•Operating Temperature: -20℃~180℃ (PTFE) (Soft seal); -40℃~450℃ (Metal hard seal)

• Flow characteristics: Equal percentage characteristic (recommended), linear characteristic, quick-opening characteristic

• Regulation accuracy: Positioning accuracy ≤±1%, hysteresis ≤±0.5%

• High Regulation Accuracy and Stable Control: The single-seat structure eliminates seat leakage gaps. Combined with the intelligent electric actuator, positioning accuracy reaches ±1%, with minimal hysteresis, enabling precise control of low-flow conditions and preventing fluctuations in pipeline fluid parameters.

• Excellent Sealing Performance and Low Leakage: Utilizing a single-seat forced sealing structure, the soft-seal version achieves Class VI sealing standards (zero leakage), while the hard-seal version meets Class IV sealing requirements, suitable for applications with stringent leakage control requirements.

•High degree of automation and convenient operation and maintenance: Supports remote control and centralized management. The actuator has self-diagnosis, fault alarm, and power failure protection functions. The actuator and valve body are connected by a flange, making disassembly and separation convenient, and maintenance can be performed without disassembling the valve body.

•Precisely adaptable to various operating conditions and highly targeted: Designed specifically for low-flow, high-precision regulation scenarios, the flow characteristics are selectable as equal percentage (suitable for systems with large load variations) or linear (suitable for systems with stable loads), suitable for the fine process control of industries such as chemical, pharmaceutical, and food.

•Flexible material options and strong durability: Valve body and internal parts are available in a variety of materials. Stainless steel is resistant to acid and alkali corrosion, chrome-molybdenum steel is resistant to high temperature and high pressure, and hard alloy welded valve core is resistant to media erosion and has a long service life.

• Chemical and Pharmaceutical Fields: Fine chemical raw material proportioning, precise dosing of pharmaceutical solutions, and control of feed flow in reaction vessels, adaptable to process requirements of small flow rates and high precision.

• Food and beverage sector: Filling, metering, and ingredient adjustment for juices, dairy products, and alcoholic beverages; stainless steel material meets sanitary standards; zero-leakage seals prevent media contamination.

• Water Treatment: Wastewater treatment dosing systems and pure water preparation systems for precise control of chemical dosage, ensuring stable effluent quality.

• HVAC: Temperature and flow regulation for central air conditioning terminal piping, adapting to the refined needs of individual building metering and constant temperature control, reducing energy consumption.

• Oil and Gas: Flow control for oil and gas field wellhead sampling pipelines and refinery fine fractionation pipelines; explosion-proof design suitable for flammable and explosive hazardous environments.