SS304/SS316L EPDM/Vmq/FPM Weld Sanitary Check Valve 3/4"-4"

QiiMii has over 15 years of manufacturing experience in stainless steel sanitary fluid and high-vacuum pipe fittings and valves. As a benchmark factory in Wenzhou's stainless steel industrial cluster, we provide not only products but also 'reliability' - from material traceability (MTR) to 100% pressure and leak rate testing, ensuring every component performs stably in your systems (semiconductor, biopharmaceutical, food processing). We also excel in production capacity, efficient management, ac

QiiMii mainly manufactures and exports stainless steel valves and fittings, including butterfly valves, ball valves, check valves, angle valves, vacuum valves, clamp fittings, welded fittings, KF/NW flanges, ISO flanges, and CF flanges. We accept customization based on product drawings, samples, and parameters.

Safety and compliance are our foundation. Our products comply with the following certifications: * Quality System: ISO 9001:2015 certified factory. * Hygiene Standards: FDA certified seals, designed to 3A sanitary standards. * Material Standards: Equipped with helium leak detectors, spectrometers, and vacuum leak detection equipment; material test certificates are available. * Testing Standards: All vacuum components are tested with a helium mass spectrometer leak detector.

To provide an accurate quotation, please supply: * Product specifications: Standard (3A / DIN / SMS), size (1', DN25, KF25, etc.). * Material: SS304 or SS316L. * Technical parameters: Working pressure, temperature range, surface finish (Ra value). * Order quantity: Sample order or bulk order. We will confirm the technical proposal and issue a formal quotation within 24 hours.

In the B-side industrial sector, 'low price' often means 'high risk'. Our price includes: * Raw material guarantee: No recycled materials; guaranteed qualified Ni and Cr content for SS316L. * Precision machining: High-precision CNC equipment to ensure sealing surface flatness and tolerances. * Strict quality inspection: Every pneumatic valve undergoes at least 50 cycles of operation and sealing tests before delivery.