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

China Ductile Cast Iron Butterfly Valve Handle Factories, Exporters

OEM Ductile Cast Iron Butterfly Valve Disc Factories, Exporter

OEM DI CI SS304 SS316 Butterfly Valve Body Manufacturers, Factory

OEM Lug Type Butterfly Valve with Body Factory, Exporter

OEM Lever OP Wafer High Performance Butterfly Valve HP BFV Factory, Exporters

China Polished CF8M Disc Silicon Rubber Seat Potable Water Butterfly Valve Factory, Factories

OEM PN16 DN80 CF8 Double-Shaft Disc Design Wafer Butterfly Valve Manufacturers, Factories

OEM Universal Wafer Butterfly Valve Compatible with PN10, PN16, ASME Class 150 and JIS 10K Manufacturers, Factories

OEM DN50 Dovetail Seat Double Shaft Wafer Butterfly Valve PN16 Factory, Exporters

China HandLever Operated PTFE Full Lined Butterfly Valve Wafer type Factory, Exporter

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

China U type Two-piece Body Silicon Rubber Disc & Seat Flange Butterfly Valve Factories, Exporter

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

China EPDM Seat C954 Disc Hydraulic Flange Butterfly Valve Manufacturers, Exporters

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

OEM DN1500 Vulcanized EPDM Seat Large Flange Butterfly Valve Exporter, Exporters

China CF8 Body CF8M Disc Double Flange Butterfly Valve Manufacturers, Exporters

OEM Lever CF8 Disc Soft Seat Wafer Butterfly Valve DN100 PN16 Manufacturer, Manufacturers

OEM Multy Standard Body Rubber Lined Disc Wafer Butterfly Valve Factories, Exporters

China CF8 Wafer High Performance Butterfly Valve with Support Manufacturers, Factories