OEM Worm Gear Wafer Butterfly Valve Manufacturer, Factory
Product Description
ZFA Valve focus on valves production for 17 years, with professional production team, we can help our customers to archive your goals with our stable quality.
Suitable Media: Wafer and other neutral medium, working temperature from -20 to 120℃, the application of the valve can be municipal construction, wafer conservancy project, water treatment etc.
We use CNC machining to process the valve disc, control the precision of the valve by ourselves, guarantee good sealing property from low to high temperature.
Our valve stem is stainless steel material, the strength of the valve stem is better after tempering, reduce the transformation possibility of valve stem.
The quality inspection from the blank to the finished product is 100% guaranteed. ZFA Valve strictly execute API598 standard, we do both side pressure testing for all the valve 100%, guarantee deliver 100% quality valves to our customers.
ZFA Valve body use solid valve body, so the weight is higher than regular type.
The valve adopt epoxy powder painting process, thickness of tht powder is 250um at least. Valve body should be heating 3 hours under 200℃, powder should be solidify for 2 hours under 180℃. After natural cooling, the adhesive of the powder is higher than regular type, guarantee there’s no color change in 36 months.
Marker Plate located on body side of the valve, easy to watch after installation. Material of the plate is SS304, with laser marking. We use stainless steel rivet to fix it, makes it cleaning and tighting. Bolts and nuts use ss304 material, with higher rust protection capability. Handle of the valve use ductile iron, is anti-corrosion than regular handle. Spring and pin use ss304 material. Handle part use semicircle structure, with good touch feeling.
Technical Specifications
| Size & Pressure Rating & Standard | |
|---|---|
| Size | DN40-DN1200 |
| Pressure Rating | PN10, PN16, CL150, JIS 5K, JIS 10K |
| Face to Face STD | API609, BS5155, DIN3202, ISO5752 |
| Connection STD | PN6, PN10, PN16, PN25, 150LB, JIS5K, 10K, 16K, GOST33259 |
| Upper Flange STD | ISO 5211 |
| Material | |
| Body | Cast Iron(GG25), Ductile Iron(GGG40/50), Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, Aluminium Alloy. |
| Disc | DI+Ni, Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, DI/WCB/SS coated with Epoxy Painting/Nylon/EPDM/NBR/PTFE/PFA |
| Stem/Shaft | SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel |
| Seat | NBR, EPDM/REPDM, PTFE/RPTFE, Viton, Neoprene, Hypalon, Silicon, PFA |
| Bushing | PTFE, Bronze |
| O Ring | NBR, EPDM, FKM |
| Actuator | Hand Lever, Gear Box, Electric Actuator, Pneumatic Actuator |
Product Gallery
Frequently Asked Questions (FAQ)
ZFA Valve strictly executes the API598 standard, conducting 100% two-sided pressure testing for every valve to ensure zero defect delivery.
The valves operate within a temperature range of -20℃ to 120℃ and are suitable for wafer and other neutral media across municipal construction, water conservancy projects, and water treatment applications.
The valve uses an epoxy powder painting process with a minimum thickness of 250μm, preheated for 3 hours at 200℃ and cured for 2 hours at 180℃, providing high adhesion with no color change guaranteed for 36 months.
Sizes range from DN40 to DN1200, supporting connection standards including PN6, PN10, PN16, PN25, 150LB, JIS 5K/10K/16K, and GOST33259.
The valve stem utilizes tempered stainless steel (such as SS416, SS431, SS304, SS316, or duplex steel) to reduce transformation risks, while external accessories like marker plates, bolts, nuts, springs, and pins are made of SS304.
The valves support multiple control methods including hand lever (ductile iron semicircle design), gear box, electric actuator, and pneumatic actuator with ISO 5211 upper flange compatibility.
