Compact electric welding ball valve Q961F-16P (Stainless steel three-piece / PTFE soft seal / National standard heavy-duty)

This product is the Q961F-16P type compact electric welding ball valve, specially designed for high-pressure and high-precision fluid control scenarios. It integrates stainless steel welding technology, three-piece modular structure and fluorine-based soft sealing technology, and is suitable for the automation control requirements of harsh conditions such as those in the chemical, energy and pharmaceutical industries. Its core advantages lie in "small size, high pressure-bearing capacity and zero leakage", making it the preferred choice for the intelligent upgrade of heavy industrial pipeline systems.
I. Core Technical Parameters
Basic Performance
Nominal Pressure: PN16 (1.6 MPa), short-term pressure resistance up to 2.5 MPa, in line with national standard GB/T12237 for heavy-duty valves.
Applicable Temperature: -29℃~180℃ (Teflon seal), high-temperature type up to 200℃ (graphite reinforced seal).
Diameter Range: DN15-DN100 (compact design, volume reduced by 40% compared to traditional ball valves).
Drive and Control
Electric Actuator: AC220V/380V power supply, supports 4-20mA signal or Modbus communication, positioning accuracy ±0.5%.
Protection Level: IP67 (dust and waterproof), explosion-proof type available (ExdIIBT4).
II. Material and Structure Analysis
Core Materials
Valve Body/Valve Cover: 304/316L stainless steel welded as a whole, without casting defect risks, resistant to intergranular corrosion and stress cracking.
Ball: 316 stainless steel mirror polished (Ra≤0.4μm), surface coated with hard chromium (HV≥800), wear resistance increased by 3 times.
Sealing System: PTFE (polytetrafluoroethylene) + spring pre-tightened valve seat, bidirectional zero leakage (ANSIVI level), resistant to particle erosion.
Innovative Process
Three-piece Welding Structure: Valve body, valve seat, end cover are welded by argon arc welding, no exposed bolts, eliminating leakage risks.
Heavy-duty Valve Stem: 17-4PH precipitation hardening stainless steel, integrated anti-slip design, torsional strength ≥ 900 MPa.
III. Core Product Advantages
Compact High Performance
Compact streamlined valve body (length ≤ 5 times pipe diameter), suitable for space-constrained skid-mounted equipment, pipe gallery voids.
Intelligent Precise Control
Electric actuator supports 0-90° continuous adjustment, flow control error < 2%, meeting DCS/PLC automation integration.
Longer Service Life
316L material + PTFE seal in 10% sulfuric acid medium has a lifespan of ≥ 8 years, maintenance cycle extended by 50%.
Safety Redundancy Design
Fireproof structure complies with API607 standards, valve seat can temporarily cut off the medium after high-temperature carbonization.
IV. Typical Application Scenarios
Energy Sector
High-pressure pipeline of natural gas compression stations, LNG low-temperature transportation system (requires low-temperature sealing package).
Chemical and Pharmaceutical
Precise material feeding control for reactors, CIP/SIP cleaning pipelines (316L material meets GMP certification).
Environmental Engineering
Solid-containing wastewater treatment (such as slurry, sludge), acid-base circulation system of desulfurization tower.
Ship Industry
High-pressure pipeline of seawater desalination, ballast water system (316 material resistant to seawater pitting corrosion).
V. Selection and Customization Services
Special Working Condition Adaptation:
Ultra-low temperature type: -196℃ liquid nitrogen valve (deep cold treatment process).
Vacuum type: Vacuum degree ≤ 10⁻³Pa, using metal bellows seal.
Guarantee Policy: 3-year warranty (including actuator), 24-hour emergency maintenance response.