A Pneumatic Butterfly Valves Factory

JRVAL-From casting to assembly, we control every step to deliver valves that meet the highest international standards for performance and reliability

Stainless Steel Butterfly Valves

Explore our corrosion-resistant CF8, CF8M, duplex, and special austenitic steel valves for demanding applications.

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Carbon Steel Butterfly Valves

High-strength, high-temperature solutions for industrial applications, a reliable choice for general service.

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Ductile Iron Butterfly Valves

A cost-effective and reliable choice, widely used in water treatment, HVAC, and general municipal engineering.

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Configure Your Actuator

Learn about single/double-acting, fail-safe modes, and select accessories like solenoid valves and limit switches for complete automation.

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Actuator Comparison

A clear comparison of the pros, cons, and best use cases for lever, gear, pneumatic, and electric actuators.

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Why JRVAL

From casting to final assembly, we are a vertically integrated source factory, providing you with reliable, traceable valve products.

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Stainless Steel Butterfly Valves

Superior corrosion resistance for chemical, food-grade, and marine applications.

Available Materials

Body: Stainless Steel: CF8 (304), CF8M (316), CF3 (304L), CF3M (316L), JS1030, 1.4406; Duplex SS: 2205, 2507; Austenitic SS: 1.4529, CN7M (Alloy 20)

Soft Seat: Rubber: EPDM, HTEPDM, NBR, SIL, FKM; Plastic: PTFE, PFA, UHMWPE

Pneumatic Stainless Steel Lug Butterfly Valve

Stainless Steel Lug Type Butterfly Valve

Combines the superior corrosion resistance of stainless steel with the dead-end service capability of a lug body, ideal for isolating equipment in corrosive environments.

Superior Material Composition: Cast with ASTM A351 CF8 containing 9% Nickel—the maximum allowable—to ensure superior corrosion resistance.
Lug Hole Positional Accuracy: True position of the threaded lug hole pattern is controlled to an exacting tolerance of ±0.10 mm and 100% gauge verified.
High-Density Casting: Our zero-porosity casting process guarantees freedom from surface porosity, shrinkage, or unauthorized weld repairs.
Patented Short-Neck Design: Our exclusive short-neck profile enables more compact system design and easier pipe insulation. It provides crucial extra clearance for actuators and surrounding equipment in space-sensitive applications.

Available Options

Size: DN40~DN1200; 1.5"~48"

Pressure: PN6~PN20; Class 125~150

Control Type: On/Off; Modulating

Best For: Chemical plant equipment isolation, marine systems, and desalination plants.

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Pneumatic Stainless Steel Flange Butterfly Valve

Stainless Steel Flanged Butterfly Valve

The ultimate choice for high-pressure, large-diameter applications in corrosive media, providing a robust, leak-proof flanged connection.

High-Nickel Content Castings: Cast with ASTM A351 CF8 containing 9% Nickel—the maximum allowable—to ensure superior corrosion resistance.
Precision-Matched Flanges: Customized from pipeline measurements and reinforced per standards (e.g., HG/T) to ensure a perfect, leak-free seal.
Traceable Craftsmanship: ISO9001 casting with permanent markings enables lifetime quality tracking from raw material to final product.

Available Options

Size: DN40~DN1200; 1.5"~48"

Pressure: PN6~PN20; Class 125~150

Control Type: On/Off; Modulating

Best For: Offshore platforms, large-scale chemical processing, and LNG terminals.

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Pneumatic Stainless Steel Wafer Butterfly Valve

Heavy-Duty Series Stainless Steel Wafer Butterfly Valve

A lightweight, space-saving, and cost-effective solution for general service applications requiring excellent corrosion resistance.

High-Nickel Content Castings: Cast with ASTM A351 CF8 containing 9% Nickel—the maximum allowable—to ensure superior corrosion resistance.
Heavy-Duty Body Design: Heavy-walled body significantly exceeds standard thickness requirements (e.g., HG/T, GOST), ensuring superior strength.

Available Options

Size:DN40~DN1200; 1.5"~48"

Pressure: PN6~PN20; Class 125~150

Control Type: On/Off; Modulating

Best For: Food & beverage production, water treatment, and light chemical lines.

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Pneumatic Stainless Steel Sanitary Wafer Butterfly Valve with Quick-Change Seat

Modu-Seal Series Stainless Steel Wafer Sanitary Butterfly Valve

Designed for sanitary applications, featuring a modular quick-change seat and a Kitz-style body to drastically reduce maintenance downtime in food, beverage, and pharmaceutical lines.

High-Resilience Seat: High-rubber-content EPDM seats withstand 200°C CIP cycles and maintain elasticity, field-proven for 2 years.
Modular Quick-Change Seat: User-replaceable seat design reduces maintenance costs by up to 90% and downtime by 80%.
Zero-Porosity Casting: High-density casting process ensures a solid, non-porous 304/316L body with a passivated, smooth, and hygienic surface.

Available Options

Size:DN40~DN1200; 1.5"~48"

Pressure: PN6~PN20; Class 125~150

Control Type: On/Off; Modulating

Best For: Food & Beverage, Pharmaceutical, Biotechnology, CIP/SIP Systems, and High-Purity Applications.

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Uni-Fit Series Stainless Steel Wafer Butterfly Valve - Pneumatic

Uni-Fit Series Stainless Steel Wafer Pneumatic Butterfly Valve

A lightweight, universal wafer valve designed for rapid installation and global flange compatibility, ensuring cost-effective performance.

Optimized for Fast Installation: The lightweight and compact wafer body design significantly reduces handling and installation time, lowering labor costs.
Universal Flange Compatibility: Seamlessly integrates with JIS, KS, and other international flange standards, ensuring easy retrofitting and global project suitability.
Superior Material Composition: Our valve castings have chemical compositions at the upper end of international standards, such as 9% Nickel in CF8 stainless steel, ensuring superior corrosion resistance.

Available Options

Size:DN40~DN1200; 1.5"~48"

Pressure: PN6~PN20; Class 125~150

Control Type: On/Off; Modulating

Best For: Water & Wastewater, Power & HVAC, Petrochemical, Desalination, Mining & Metals, Shipbuilding.

View Details & Specs

SS High Performance Wafer Butterfly Valve - Pneumatic

Stainless Steel High-Performance Wafer Butterfly Valve

A high-performance valve for demanding services, featuring a pinless design and bi-directional sealing to ensure stability and zero leakage in high-cycle and vibrating environments.

Pinless Design: The key/square shaft connection eliminates the risk of pin loosening/breakage, ensuring stability under high-frequency/vibration conditions.
Bi-directional Sealing: The resilient seat + spherical disc provides bi-directional sealing (customizable leakage class), effectively preventing contamination/backflow.
Verified Materials: Provides MTC certificates + PMI testing to ensure material authenticity and compliance.

Best For: Water & Wastewater, Power & HVAC, Petrochemical, Desalination, Mining & Metals, Shipbuilding.

Available Options

Size:DN40~DN2800; 1.5"~112"

Pressure: PN6~PN64; Class 125~300

Control Type: On/Off; Modulating

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Triple Offset Butterfly Valve Lug Type - SS

Stainless Steel Triple Offset Lug Butterfly Valve

High-performance triple offset design with hardened metal seals achieves API 598 bubble-tight zero leakage, suitable for high-temp, high-pressure, and severe media.

Bubble-Tight Sealing: Triple offset geometry combined with hardened metal seals (Stellite) achieves API 598 bubble-tight zero leakage.
Material Traceability: Full material certificates and third-party reports are available to guarantee material authenticity.
Pinless Design: Pinless stem-to-disc connection eliminates the risk of pin failure, ensuring reliable high-torque performance.

Available Options

Size:DN40~DN2800; 1.5"~112"

Pressure: PN6~PN400; Class 125~2500

Control Type: On/Off; Modulating

Sealing System: Triple Offset Metal-to-Metal Seal; Body Seat: Integral or Stellite overlay; Disc Seal Ring: Laminated (SS316+Graphite)

Best For: Power & HVAC, Petrochemical, Desalination, Mining & Metals, Shipbuilding, Severe Chemicals, Cryogenic Fluids.

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Double Flanged Triple Offset Butterfly Valve - SS

Stainless Steel Double Flanged Triple Offset Butterfly Valve

Ultimate reliability for critical applications, featuring a replaceable seat and seal for extended valve life and minimized downtime.

Friction-Free Operation: The cone-in-cone seating eliminates friction during operation, preventing seat wear and ensuring low torque and a long service life.
Material Traceability: Full material certificates and third-party reports are available to guarantee material authenticity.
Pinless Design: Pinless stem-to-disc connection eliminates the risk of pin failure, ensuring reliable high-torque performance.

Available Options

Size: DN50~DN2800; 1.5"~112"

Pressure: PN6~PN400; Class 125~2500

Control Type: On/Off; Modulating

Sealing System: Triple Offset Metal-to-Metal Seal; Body Seat: Integral or Stellite overlay; Disc Seal Ring: Laminated (SS316+Graphite)

Best For: Power & HVAC, Petrochemical, Desalination, Mining & Metals, Shipbuilding, Severe Chemicals, Cryogenic Fluids.

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Carbon Steel Butterfly Valves

The industrial workhorse for high-strength, high-temperature, and high-pressure applications with non-corrosive media.

Available Materials

Body:

Carbon Steel (WCB, WCC); Low-Temp Carbon Steel (LCB, LCC, LC1)

Soft Seat: Rubber: EPDM, HTEPDM, NBR, SIL, FKM; Plastic: PTFE, PFA, UHMWPE

Pneumatic Carbon Steel Lug Butterfly Valve

Carbon Steel Lug Type Butterfly Valve

Provides high-strength for industrial equipment isolation. The lug body allows for dead-end service, ideal for maintenance in power plants and refineries.

Patented Short-Neck Design: Our exclusive short-neck profile enables more compact system design and easier pipe insulation. It provides crucial extra clearance for actuators and surrounding equipment in space-sensitive applications.
Precision-Machined Lugs: Tapped holes are 100% Go/No-Go gauge inspected to ensure perfect alignment and reliable dead-end service.

Available Options

Size:DN40~DN1200; 1.5"~48"

Pressure: PN6~PN20; Class 125~150

Control Type: On/Off; Modulating

Best For: Oil & Gas (midstream), Power Generation, Pulp & Paper, Heavy Industrial Maintenance.

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Pneumatic Carbon Steel Wafer Butterfly Valve

Heavy-Body Series Carbon Steel Wafer Butterfly Valve

An economical and compact choice for general industrial services that require higher strength and temperature ratings than ductile iron.

Guaranteed Casting Integrity: Our WCB castings are guaranteed free of porosity and shrinkage, ensuring reliable high-pressure performance.
Heavy-Duty Body Design: Heavy-walled body significantly exceeds standard thickness requirements (e.g., HG/T, GOST), ensuring superior strength.

Available Options

Size:DN40~DN1200; 1.5"~48"

Pressure: PN6~PN20; Class 125~150

Control Type: On/Off; Modulating

Best For: HVAC Systems, General Utility Lines, Non-Corrosive Industrial Processes.

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Pneumatic Carbon Steel High-Performance Wafer Butterfly Valve

Signet Series Carbon Steel Wafer Butterfly Valve

An upgraded, precision wafer valve featuring a premium finish and customizable flange facing to ensure leak-free performance in demanding applications.

Premium Workmanship: Features a finely coated body and a unique embedded stainless steel nameplate for superior aesthetics and durability.
Precision Flange Facing: Custom flange adjustments eliminate piping mismatches, ensuring a perfect, leak-free connection.
Guaranteed Material Integrity: Our ASTM A216 WCB castings have an optimized composition and full MTC traceability for maximum strength.

Available Options

Size:DN40~DN1200; 1.5"~48"

Pressure: PN6~PN20; Class 125~150

Control Type: On/Off; Modulating

Best For: Critical process lines, high-vibration environments, and applications requiring zero leakage.

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Carbon Steel Flange Butterfly Valve - Pneumatic

Carbon Steel Flanged Pneumatic Butterfly Valve

A robust flanged butterfly valve providing superior strength and sealing for industrial pipelines, backed by optimized material composition and traceable processes.

Precisely Matched Flanges: Flanges are custom-machined based on pipe measurements to ensure a leak-proof seal, with thickness reinforced to standards like HG/T.
Guaranteed Material Integrity: We guarantee an optimized composition for our WCB carbon steel, maximizing key elements like manganese for strength while strictly controlling impurities.

Available Options

Size:DN40~DN1200; 1.5"~48"

Pressure: PN6~PN20; Class 125~150

Control Type: On/Off; Modulating

Best For: Water & Wastewater, Power & HVAC, Petrochemical, Mining & Metals, Shipbuilding.

View Details & Specs

API 607 Fire-Safe High Performance Wafer Butterfly Valve

Engineered for critical safety applications, this API 607 certified fire-safe valve offers bi-directional zero leakage and robust performance in high-pressure, high-temperature environments.

Verified Fire-Safe Performance: Fully certified to API 607 standards, guaranteeing reliable sealing integrity even after exposure to fire.
Versatile Sealing Solutions: Offered with soft (PTFE/RPTFE), solid metal, and API 609 certified fire-safe seats to meet a wide range of application and safety requirements.
Blowout-Proof Stem Design: A robust stem design ensures operator safety and valve integrity, especially in high-pressure services.

Best For: Water Supply & Wastewater, Energy & HVAC, Petrochemical, Seawater Desalination, Mining & Metals, Shipbuilding.

Available Options

Size: 2" ~ 60" (DN50 ~ DN1500)

Pressure: PN20 ~ PN100 (Class 150 ~ 600)

Control Type: On/Off; Modulating

Seat Options: Soft Seat; Metal Seat; Fire-Safe Seat

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Double Flanged Triple Offset Butterfly Valve - Carbon Steel

Carbon Steel Double Flanged Triple Offset Butterfly Valve

A high-performance valve for extreme conditions, featuring multi-layer anti-corrosion protection and a fail-safe design for long-term reliability in low-temp and corrosive environments.

Anti-Corrosion Protection: A 250μm multi-layer coating effectively resists salt spray, humidity, and chemical attacks.
Fail-Safe Design: The pinless stem-disc connection prevents failures caused by low-temperature deformation.
Cryogenic & High-Temp Integrity: The pinless design and robust carbon steel body prevent deformation and ensure reliable performance across a vast temperature range, from cryogenic to high-heat services.

Available Options

Size:DN40~DN2800; 1.5"~112"

Pressure: PN6~PN250; Class 125~2500

Control Type: On/Off; Modulating

Sealing System: Triple Offset Metal-to-Metal Seal; Body Seat: Integral or Stellite overlay; Disc Seal Ring: Laminated (SS316+Graphite)

Best For: Power & HVAC, Petrochemical, Desalination, Mining & Metals, Shipbuilding, Cryogenic Applications.

View Details & Specs

Ductile Iron Butterfly Valves

The reliable and cost-effective standard for water, wastewater, and general utility services.

Available Materials

Body:Ductile Iron: GGG50/ GGG40

Coating:System: Fusion Bonded Epoxy (FBE); Standard: Internal & External Coating; Dry Film Thickness (DFT): 200-250 µm

Pneumatic Ductile Iron Lug Butterfly Valve

Ductile Iron Lug Type Butterfly Valve

Provides dependable dead-end service for pump and equipment isolation in municipal water systems, fire protection, and HVAC applications.

Patented Short-Neck Design: Our exclusive short-neck profile enables more compact system design and easier pipe insulation. It provides crucial extra clearance for actuators and surrounding equipment in space-sensitive applications.
Precision-Machined Lugs: Tapped holes are 100% Go/No-Go gauge inspected for perfect alignment and reliable dead-end service.

Available Options

Size:DN40~DN1200; 1.5"~48"

Pressure: PN6~PN20; Class 125~150

Control Type: On/Off; Modulating

Best For: Pumping stations, fire protection systems, and building HVAC systems.

View Details

HP25 Series Ductile Iron Wafer Butterfly Valve - Pneumatic

HP25 Series Ductile Iron Wafer Pneumatic Butterfly Valve

A robust, high-pressure valve featuring an extra-thick, high-grade ductile iron body for stable use in high-pressure applications up to PN25.

Robust High-Pressure Body: An extra-thick, high-grade ductile iron body exceeds heavy-body series standards for reliable use in applications up to PN25.
Guaranteed Material Integrity: We guarantee an optimized composition for EN-GJS-500-7 ductile iron, maximizing elements like manganese for strength while strictly controlling impurities.

Available Options

Size:DN40~DN1200; 1.5"~48"

Pressure: PN6~PN25; Class 125~150

Control Type: On/Off; Modulating

Best For: Water & Wastewater, Power & HVAC, Petrochemical, Desalination, Mining & Metals, Shipbuilding.

View Details & Specs

Configure Your Actuation: Actuators & Accessories

A quality valve is just the start. The right actuator and accessories are critical for reliable, efficient, and safe automated performance. JRVAL delivers fully assembled and tested valve packages built to your specifications.

Double-Acting Actuators

Use compressed air to both open and close the valve. This is the standard, cost-effective choice for general on/off automation.

Requires air pressure for each operation.
Ideal for stable systems where loss of power/air is not critical.
Lower initial cost compared to spring-return.

Spring-Return (Fail-Safe) Actuators

Use compressed air for one action (e.g., open) and a powerful internal spring for the other (e.g., close). Crucial for safety.

Automatically returns to a "safe" position upon loss of air or power.
Specify "Fail-Close" or "Fail-Open" based on process needs.
Essential for Emergency Shutdown (ESD) systems.

Control & Feedback Accessories

Integrate your automated valve into a control system with essential add-ons to trigger action and monitor status.

Solenoid Valves: The electrical "trigger" that directs air to the actuator.
Limit Switch Boxes: Provide electrical feedback to confirm the valve's open/closed position.

Positioning & Air Supply Treatment

Ensure precise control and long actuator life with accessories for modulating service and clean air supply.

Electro-Pneumatic Positioners: Allow for precise throttling control (e.g., 35% open).
Air Filter Regulators (AFR): Guarantee clean, dry air at the correct pressure for optimal performance.

Choosing the Right Actuator: A Comparison Guide

The valve body is only part of the solution. Selecting the right actuator is critical for performance, safety, and efficiency. This guide compares the most common options for butterfly valves.

Actuator Type	Operating Principle	Key Advantages	Best Applications / Industries
Lever Handle	Manual 90-degree turn operation. Often includes a locking mechanism or a notched plate for positioning.	Simple, low-cost, and reliable. Provides instant visual feedback of valve position. No external power source required. Fast operation for quick shut-off.	Small-diameter pipelines (typically ≤ DN300). General water, air, and chemical lines. Applications requiring infrequent operation. Food & Beverage, HVAC, Water Treatment.
Worm Gear	Manual handwheel turns a gearbox, multiplying torque to make opening/closing large valves easier.	Significantly reduces physical effort required. Allows for precise control and throttling. Prevents water hammer with slow operation. Self-locking design holds the disc in position.	Large-diameter valves (≥ DN250). High-pressure or high-flow systems. Municipal water supply, power plants, shipbuilding. Any application where slow, controlled operation is desired.
Pneumatic	Uses compressed air to move a piston or diaphragm, which rotates the valve stem. Can be spring-return or double-acting.	Very fast and powerful actuation. High cycle life and extremely reliable. Intrinsically safe for explosive atmospheres (no spark). More cost-effective than electric actuators for large sizes.	Automated process control systems. Emergency Shutdown (ESD) systems (with spring-return). High-frequency cycling applications. Chemical, Oil & Gas, Pharmaceutical.
Electric	An electric motor drives a gear train to rotate the valve stem. Can offer sophisticated control options.	Extremely precise positioning for modulating control. Ideal for remote operation where compressed air is not available. Easily integrates with PLC and SCADA systems. Low energy consumption when not operating.	Remote and unmanned facilities (e.g., pipelines). Advanced automation and process control. Wastewater treatment, power generation, HVAC. Applications requiring complex control logic.

Why Partner with JRVAL?

We aren't just a supplier; we are your vertically integrated manufacturing partner. From casting to assembly, we control every step to deliver valves that meet the highest international standards for performance and reliability.

Certified Quality

ISO9001, BV, and CE certified. We provide Material Test Reports, Heat Treatment Reports, and Mechanical Property Reports for every valve.

Vertically Integrated Factory

From raw material casting and precision machining to final assembly, we control the entire production line. This ensures consistent quality and faster lead times.

Risk-Free Sourcing

Free Samples. Compare our valve quality against any other brand before you buy. Experience the JRVAL difference firsthand.

Standard & Custom Solutions

With over 2000 sets of independent machining molds, we can provide both standardized and fully customized valve solutions for any application.

2-Year Warranty

We are confident in our craftsmanship. Get new spare part replacements for the body, disc, and seat under our comprehensive warranty.

Ready to Automate Your Process?

Our engineers are ready to help you select the ideal pneumatic butterfly valve and automation package for your specific application. Contact us today for a free sample and a competitive quote.

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Need Help with Valve Selection?

Our engineers provide custom solutions based on your operating conditions.

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