Which international standards do ZFA valves comply with?

ZFA valves are designed and manufactured in compliance with international valve standards including ASTM, ANSI, ISO, BS, DIN, GOST, JIS and KS, so they can be specified directly into projects in North America, Europe, Russia/CIS and Asia.

What certifications does Tianjin Zhongfa Valve hold?

Tianjin Zhongfa Valve Co., Ltd. operates an ISO 9001 certified quality management system and holds CE certification. Certificate copies can be provided with your catalog request or project documentation.

Does ZFA offer OEM butterfly valve manufacturing?

Yes. ZFA supports OEM projects from drawing review and material selection through casting, machining, assembly, pressure testing, branded marking and export packing, as well as supplying butterfly valve parts such as bodies, discs, stems and seats.

How do I choose between EPDM, NBR and PTFE butterfly valve seats?

EPDM is generally chosen for water, wastewater and HVAC service; NBR for oils, fuels and hydrocarbons; PTFE for aggressive chemicals and hygienic applications. Final selection should be confirmed against the media, temperature and pressure rating of the specific valve.

How quickly will ZFA respond to a technical enquiry?

Our sales engineering team replies to email enquiries sent to sales@zfavalve.com within 24 hours, with technical data sheets and catalog information for the valves you specify.

Products

OEM PTFE Full Lined Wafer Butterfly Valve Exporter, Exporters

OEM Brass Bronze Wafer Butterfly Valve Manufacturer, Manufacturers

OEM Worm Gear Wafer Butterfly Valve with Nylon Covered Disc Manufacturers, Factory

OEM Worm Gear Wafer Butterfly Valve Manufacturer, Factory

China Worm Gear Operated Wafer Type Butterfly Valves Factories, Exporters

OEM Replacable Seat Aluminum Hand Lever Wafer Butterfly Valve with EPDM Seat Factory, Exporter

OEM PTFE Seat Wafer Type Butterfly Valve Manufacturer, Exporter

China Pneumatic Actuator Wafer Butterfly Valves Manufacturer, Exporters

OEM Handle Actuated Ductile Iron Wafer Type Butterfly Valve Manufacturers, Factory

OEM Electric Actuator Wafer Butterfly Valve Factories, Exporter

China Body Models for Butterfly Valve Manufacturer, Factory

OEM Wafer Type Butterfly Valve with Aluminum Handle Manufacturer, Manufacturers

OEM 5k 10k 150LB PN10 PN16 Wafer Butterfly Valve Exporter, Exporters

China U Section Flange Butterfly Valve Manufacturer, Factories

OEM Concentric Cast Iron Full Lined Butterfly Valve Manufacturers, Factories

China Wafer Type Fire Signal Butterfly Valve Factory, Exporters

China Extention Stem Wafer Butterfly Valve Manufacturer, Exporters

OEM Worm Gear DI Body Lug Type Butterfly Valve Manufacturers, Exporter

China Hand Lever Actuated Ductile Iron Lug Type Butterfly Valves Manufacturer, Exporters

China Ductile Iron SS304 Disc Lug Type Butterfly Valves Manufacturers, Exporters