







In the modern industrial landscape, CF8M (Cast 316 Stainless Steel) gate valves serve as the backbone of corrosive fluid management. Unlike standard carbon steel (WCB) or CF8 (Cast 304), the addition of 2-3% Molybdenum in CF8M provides superior resistance to chlorides and pitting, making it the preferred choice for marine, pharmaceutical, and chemical processing industries.
Our CF8M Gate Valves are cast using precision techniques to ensure an optimal balance of Chromium, Nickel, and Molybdenum. This specific alloy composition provides an austenitic structure that maintains high toughness even at cryogenic temperatures, ensuring long-term structural integrity in LNG and cryogenic processing.
Utilizing high-grade PTFE or specialized metal-to-metal seating, our valves achieve zero-leakage performance. The rising stem design allows for immediate visual confirmation of valve position, crucial for safety protocols in high-pressure steam and oil/gas pipelines.
Fully compliant with API 600, API 603, and ASME B16.34 standards. Every valve undergoes rigorous hydrostatic and pneumatic testing (API 598) before leaving our facility, ensuring that "wholesale" doesn't mean a compromise on "quality".
In regions relying heavily on seawater desalination, CF8M is the standard. Its resistance to saline environments prevents rapid oxidation and mineral buildup, significantly reducing maintenance downtime in RO (Reverse Osmosis) facilities.
For high-purity applications, the surface finish and corrosion-free nature of CF8M prevent fluid contamination. Our OEM services allow for specialized electropolishing to meet strict FDA/EU sanitary requirements.
With the rapid industrialization of Vietnam, Indonesia, and Thailand, there is a surging demand for valves that can handle aggressive acids and bases. Our CF8M gate valves provide the necessary durability at a competitive price point.
KR's factory leverages the world-class industrial ecosystem of China. By integrating our own casting foundry with advanced CNC machining centers, we eliminate middle-man costs and maintain absolute control over material purity.
The next generation of CF8M gate valves will feature integrated sensors to monitor torque, pressure drops, and seal wear, feeding data directly to cloud-based maintenance systems.
We are exploring 3D sand printing for complex internal geometries, allowing for valves with optimized flow paths that reduce turbulence and energy loss.
Fugitive emissions are a growing concern. Our R&D is currently focusing on self-adjusting packing systems that meet the stringent ISO 15848-1 emission standards.
CF8 is the cast version of 304 Stainless Steel, while CF8M corresponds to 316 Stainless Steel. The primary difference is the addition of Molybdenum in CF8M, which provides vastly superior resistance to chloride-induced pitting and corrosion.
Yes. While we follow standard ASME B16.10 and DIN 3202 dimensions, our engineering team can provide non-standard custom solutions to fit existing pipeline layouts without the need for expensive piping modifications.
Every single valve (100%) undergoes a shell test and seat test according to API 598. For wholesale orders, we also provide MTC (Material Test Certificates) EN 10204 3.1 to guarantee chemical and physical properties.
Depending on the size mix, typical production lead times are 30-45 days. However, common sizes like DN100 or DN150 may be available ex-stock for immediate dispatch.
KR has more than 20 years of experience in producing standard and non-standard valves of various types. We supply a wide selection of over 500 valve products, including butterfly valve, gate valve, check valve, water control valve, as well as all their matching and accessory products. These products have applications in various industries such as water treatment, dam construction, commercial buildings, energy and heating, chemical engineering, etc.
Today, KR VALVE’s products have been exported to over 50 countries and regions in Europe, Asia, Africa, and Oceania, providing project construction and brand marketing services to thousands of customers.
We have our own independent brand ‘KR’ and also provide OEM services to our customers.
We have 15 machining machines and assembly line, and our workers are all experienced.
We strictly control the production of each component and assemble it into a perfect finished product.
Competitive price based on strict control of every production process by ourselves.
Professional and complete pre-sales and after-sales service consultation 24/7.
Supply international standard and non-standard customized products for unique projects.
Supplied various water control valves for large-scale hydraulic engineering.
Large size butterfly and check valves for municipal water supply.
A range of CF8M corrosion-resistant valves for chemical processing lines.