Engineered for dead-end service, our lug-style stainless steel valves combine superior material integrity with precision manufacturing. The threaded inserts allow for safe downstream maintenance without draining the entire system, making them indispensable in critical process lines.
Engineered with a standardized ISO 5211 mounting interface, this bare stem valve is the definitive choice for global integration. This universal standard guarantees a seamless and reliable connection with virtually any actuator brand—pneumatic, electric, or hydraulic—available in your local market.
Round/ Square Shaft Available
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Standards: All Standards Met
For rapid, manual on/off control. The lever handle provides quick 90-degree actuation and clear visual position indication, perfect for smaller diameter lines requiring frequent, straightforward operation.
Safety Lockout Device (LOTO) Available
Size: DN40~DN200; 1.5"~8"
Pressure: PN6~PN20; Class 125~150
Standards: All Standards Met
Provides mechanical advantage for easy and precise manual control of larger valves or high-pressure lines. The self-locking gearbox ensures the valve stays in position against flow-induced torque.
Supervisory Tamper Switch Available
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Standards: All Standards Met
The choice for high-speed, high-cycle automation. Pneumatic actuators offer unparalleled reliability and speed, with spring-return options for fail-safe operation in critical chemical processing or safety systems.
On/Off, Modulating Available
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Standards: All Standards Met
For precise, remote automated control. Electric actuators integrate seamlessly with PLC and SCADA systems, offering modulating control for flow regulation and reliable operation where compressed air is not available.
On/Off; Modulating; VF (Variable Frequency) & Fail-Safe Available
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Standards: All Standards Met
With integral flanges for a secure, bolted connection, these valves offer maximum rigidity and sealing integrity. They are the premier choice for large-diameter, high-pressure pipelines in aggressive chemical, marine, and industrial environments.
Engineered with a standardized ISO 5211 mounting interface, this bare stem valve is the definitive choice for global integration. Its robust body provides a stable platform for any high-torque actuation system required by large-scale projects.
Round/ Square Shaft Available
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Standards: All Standards Met
An uncommon but available option for smaller flanged valves where quick manual shutoff is needed. Provides a simple, direct-control solution for accessible pipelines.
Safety Lockout Device (LOTO) Available
Size: DN40~DN200; 1.5"~8"
Pressure: PN6~PN20; Class 125~150
Standards: All Standards Met
The standard for manual flanged valves. The gearbox provides the necessary torque for effortless operation of high-pressure and large-diameter lines, ensuring precise and safe flow control.
Supervisory Tamper Switch Available
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Standards: All Standards Met
The choice for high-speed, high-cycle automation. Pneumatic actuators offer unparalleled reliability and speed, with spring-return options for fail-safe operation in critical chemical processing or safety systems.
On/Off, Modulating Available
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Standards: All Standards Met
Combines the ultimate sealing integrity of a flanged body with the precision of electric automation. Ideal for critical, large-scale process control and remote pipeline management.
On/Off; Modulating; VF (Variable Frequency) & Fail-Safe Available
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Standards: All Standards Met
Our stainless steel wafer valves offer compact, cost-effective, and versatile solutions. From robust, heavy-body designs for industrial use to modular, quick-change seats for hygienic applications, JRVAL provides the perfect wafer valve for your needs.
The ultimate industrial wafer valve. Its heavy-walled body exceeds standards, providing an enhanced safety margin and superior structural integrity for demanding applications. Available with bare stem, lever, gear, pneumatic, or electric actuators.
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Actuator Options: Lever; Worm Gear; Pneumatic; Electric
Standards: All Standards Met, esp. GOST, HG/T.
The ultimate solution for rapid integration. The Uni-Fit series combines universal flange compatibility with a lightweight body, ensuring fast, cost-effective installation in systems worldwide. It comes pre-fitted with a robust electric actuator for immediate, reliable automation.
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Actuator Options: Lever; Worm Gear; Pneumatic; Electric
Standards: All Standards Met, esp. JIS 16K/KS.
A revolutionary design for hygienic applications demanding minimal downtime. This valve's modular seat allows for rapid, in-line replacement, drastically reducing maintenance costs. Available with bare stem, lever, gear, or pneumatic actuators.
Size: DN40~DN1200 [1.5in ~ 48in]; Pressure: PN6 ~ PN20 [Class 125/150]
MOQ: 1 Set; Standards: All Standards Met, esp. GOST.
Size: DN40~DN1200; 1.5"~48"
Pressure: PN6~PN20; Class 125~150
Actuator Options: Lever; Worm Gear; Pneumatic; Electric
Standards: All Standards Met
Engineered for the most severe services, these eccentric valves minimize seat wear and operating torque, providing superior, long-lasting sealing in critical applications from high-cycle throttling to zero-leakage isolation.
The high-performance workhorse. Its double-offset design lifts the disc off the seat, drastically reducing wear and extending service life in throttling and high-cycle services. Typically supplied with worm gear or automated actuators for precise control.
Size: DN40~DN2700 [1.5in ~ 108in]; Pressure: PN6 ~ PN63 [Class 125~300]
Size: DN40~DN2800; 1.5"~112"
Pressure: PN6~PN63; Class 125~150
Actuator Options: Lever; Worm Gear; Pneumatic; Electric
Standards: All Standards Met
The apex of valve technology for zero-leakage performance. The friction-free, triple-offset design with a metal-to-metal seal ensures absolute, bubble-tight shutoff in high-pressure, high-temperature, and cryogenic services.
Size: DN40~DN2800 [1.5in ~ 112in]; Pressure: PN10 ~ PN400 [Class 150~2500]
Size: DN40~DN2700; 1.5"~108"
Pressure: PN6~PN400; Class 125~2500
Actuator Options: Lever; Worm Gear; Pneumatic; Electric
Standards: All Standards Met
Explore the high-performance stainless steel grades used for our butterfly valves and select the optimal solution for your application.
Key Features: The most common and versatile stainless steel, offering good general-purpose corrosion resistance.
Corrosion Resistance: Good resistance to atmospheric corrosion, water, many acids (e.g., nitric acid), and alkaline solutions.
Typical Applications: Water treatment, food industry, architectural, general chemical services. Not recommended for chloride environments.
Cost: Economical
Key Features: An enhancement of 304 with added Molybdenum (Mo) for significantly improved corrosion resistance, especially to chlorides.
Corrosion Resistance: Excellent resistance to pitting and crevice corrosion, making it suitable for marine and chemical environments.
Typical Applications: Chemical processing, offshore platforms, pharmaceuticals, coastal water systems.
Cost: Moderate
Key Features: The low-carbon ("L") version of 304. It maintains corrosion resistance after welding without needing post-weld annealing.
Corrosion Resistance: Similar to 304 but with better resistance to intergranular corrosion, making it ideal for welded structures.
Typical Applications: Large-diameter valves requiring on-site welding, chemical tanks.
Cost: Similar to 304
Key Features: The low-carbon ("L") version of 316, combining its chloride resistance with excellent weldability.
Corrosion Resistance: Superior resistance to intergranular corrosion compared to 316. A very common high-performance grade.
Typical Applications: Pharma, fine chemicals, food & beverage, and services requiring high weld integrity and cleanliness.
Cost: Moderate to High
Key Features: Combines austenitic and ferritic benefits. Strength is roughly double that of 316, with strong resistance to Stress Corrosion Cracking (SCC).
Corrosion Resistance: Far superior to 316L, especially in chloride-containing environments.
Typical Applications: Desalination, oil & gas industry, chemical tankers, wastewater treatment.
Cost: High
Key Features: A "Super Duplex" steel with higher strength and corrosion resistance than 2205. PREN value > 40.
Corrosion Resistance: Extremely high resistance to pitting, crevice, and uniform corrosion.
Typical Applications: Harsh marine engineering, Flue-Gas Desulfurization (FGD), high-chloride concentration services.
Cost: Very High
Key Features: A high-molybdenum (6Mo) super-austenitic stainless steel with corrosion resistance comparable to some nickel alloys.
Corrosion Resistance: Extremely high resistance to pitting and crevice corrosion in halide media, especially chlorides.
Typical Applications: FGD systems, acidic gas handling, phosphoric acid production, seawater heat exchangers.
Cost: High
Key Features: An "acid-resistant" alloy developed specifically for sulfuric acid service. Bridges the gap between stainless steels and nickel alloys.
Corrosion Resistance: Excellent resistance to hot sulfuric acid across a wide range of concentrations, plus strong resistance to chloride SCC.
Typical Applications: Sulfuric acid processing, plastics, pharmaceuticals, fertilizer production, and other highly corrosive services.
Cost: Very High
Choosing the correct valve body material is the first and most critical step. Stainless steel is the champion of corrosion resistance, but understanding its advantages against other common materials ensures optimal performance and cost-effectiveness.
| Feature | Stainless Steel (SS) | Carbon Steel (WCB) | Ductile Iron (DI) | Bronze / Copper Alloys |
|---|---|---|---|---|
| Corrosion Resistance | Excellent | Poor (requires coating) | Fair | Very Good (especially in marine) |
| Temperature Range | Very Wide (Cryogenic to High Temp) | Wide (but less than SS) | Limited | Moderate |
| Strength & Pressure | Very High | Highest | High | Moderate |
| Cost | High | Moderate | Low | Very High |
| Best Applications | Chemicals, Food & Beverage, Pharma, Marine, Corrosive Media | Oil & Gas, Steam, High-Pressure Industrial (non-corrosive) | Water, Wastewater, HVAC (general service) | Seawater, Desalination, Shipbuilding |
We are not just a supplier; we are your vertically integrated manufacturing partner. From raw casting to final assembly, we control every step to deliver stainless steel valves that meet the highest international standards for performance and reliability.
ISO9001, BV, and CE certified. We provide complete test reports for material, heat treatment, and mechanical performance with every shipment.
From raw casting and precision machining to final assembly, we control the entire production line. This ensures consistent quality and faster lead times.
A Free Sample. Compare our valve quality against any other brand before you purchase. Experience the JRVAL difference firsthand.
We stand by our products with a comprehensive warranty. Valve body, disc, and seat are all available for new spare parts replacement if needed.
Our engineers are ready to help you select the ideal stainless steel butterfly valve for your specific application and provide a competitive quote. Contact us today to request your free sample and consultation.
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