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.

Lug Type Butterfly Valve Manufacturer & Manufacturers

China Class 150 C95800/C958 Disc Lug Butterfly Valve DN250 with Soft Seat Exporter, Exporters

China Class 150 C95800/C958 Disc Lug Butterfly Valve DN250 with Soft Seat Exporter, Exporters

China Silicon Rubber Disc PTFE Lug & Flange Butterfly Valve Split Body type Manufacturer, Factories

OEM 18" Hard Back Seat Lug Butterfly Valve with Pin DN450 PN10 Manufacturer, Exporters

OEM CF8M Disc Dovetail Seat Lug Butterfly Valve CL150 Manufacturers, Exporters

China Two Shaft Replaceable Seat Lug Butterfly Valve DN400 PN10 Manufacturers, Exporters

OEM Replaceable Seat CF8M Disc Lug Butterfly Valve DN250 PN10 10Inch Manufacturer, Factories

China CF8M Disc PTFE Seat Lug Butterfly Valve Factories, Exporters

OEM Casting Iron Body CF8 Disc Lug Type Butterfly Valve Manufacturers, Factory

OEM PTFE Full Lined Lug Butterfly Valve Manufacturer, Exporter

China Pneumatic Soft Seal Lug Butterfly Valve OEM Factory, Factories

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