OEM 30s41nj GOST 12820-80 20Л/20ГЛ PN16 PN40 Gate Valve Manufacturers, Exporter
Product Description
The valve body is made of WCB material with delicate appearance. This product can be widely used in chemical industry system.
The internal part numerical control lathe machining, carries on the second processing, causes the appearance to be more beautiful. The seat adopts Cr stainless steel and surfacing 507 molybdenum to increase the wear resistance of the seat.
Manufacturing Capabilities & Craftsmanship
Technical Specifications & Standards
| Size & Pressure Rating & Standard | |
|---|---|
| Size | DN40 - DN1000 |
| Pressure Rating | PN10, PN16, PN40 |
| Face to Face STD | GOST 12810 |
| Connection STD | GOST 33269 |
| Upper Flange STD | ISO 5211 |
| Material Specifications | |
| Body | WCB / LCC (20Л / 20ГЛ) |
| Disc | WCB / LCC (20Л / 20ГЛ) |
| Stem / Shaft | 2Cr13 / F6A |
| Seat | MO, A132, A102 |
| Bushing | Bronze |
| O-Ring | 304 Stainless Steel |
| Actuator Options | Gear Box, Electric Actuator, Pneumatic Actuator |
| Working Temperature | -20°C to 425°C |
Product & Facility Gallery
Frequently Asked Questions
Q What materials are used for the valve body and internal disc?
The valve body and disc are crafted from high-grade WCB or LCC (20Л / 20ГЛ) cast steel, specifically engineered to withstand demanding environments such as chemical industry systems.
Q How is the valve seat enhanced for wear resistance?
The valve seat utilizes Cr stainless steel combined with surfacing 507 molybdenum, which significantly boosts surface hardness, longevity, and wear resistance under continuous operation.
Q Can you supply separate valve components or custom-designed parts?
Yes. In addition to complete assembled valves, we supply separate components including bodies, discs, stems, and handles. We also develop custom valve part molds built directly from customer engineering drawings.
Q What are the standard connection and pressure specifications?
The valves support sizes from DN40 to DN1000, pressure ratings of PN10, PN16, and PN40, with GOST 12810 face-to-face dimensions, GOST 33269 connection standards, and ISO 5211 upper flange compatibility.
Q What quality control and testing processes are performed prior to delivery?
Every valve product undergoes two separate rounds of thorough pressure and physical performance testing prior to packing and shipment, backed by our inventory of over 30 CNC, spectrograph, and testing machines.
Q Does Zhongfa Valve provide OEM & ODM manufacturing options?
Yes, Zhongfa Valve provides complete OEM and ODM gate valve manufacturing services in China, combining cost efficiency with verified industrial-grade craftsmanship.
