Centerline Butterfly Valves Distributors

Quick-Change-Seat™ Stainless Steel Wafer Type Butterfly Valve - Lever

10bar~20bar (1.0mpa~2.0mpa)

Product Advantages

icon Elasticity Excellence: High-resilience EPDM/PTFE blend (60%+ rubber) withstands 200°C CIP cycles with industry-leading elasticity retention (2-year field data verified).

icon Modular Maintenance: Modular seat replacement reduces 90% maintenance costs and 80% downtime versus traditional valves

icon Space-Optimized Mounting: Kitz-inspired two-ear clamp cuts weight by 30%-40% and boosts installation efficiency 50% for compact layouts

icon Passivated 304/316L Steel: Acid-washed and passivated surface is smooth, mark-free, with permanent clear cast markings.

Standards and Certifications

Design and Manufacture: ASME B16.34; ASME VIII; API 609

Leakage Class: API 598 (Bi-directional Zero Leakage)

Side Flange Standards: ANSI 125LB/ 150LB; ASME; AS-D/E; BS; DIN; EN PN6/ PN10/ PN16; GB; GOST; HG/T; JIS 5K/ 10K

Top Flange (Actuator Mounting) : ISO 5211; GB 90°

Face-to-Face Dimension: ISO 5752; MSS SP-68; ASME B16.10; EN 558-1; API 609

Testing Standards: API 598; EN 12266-1; ISO 5208; BS 6755-1

Certifications: ISO 9001; CE; BV; API 609; API 598; EAC; SIL3；

Technical description

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Q&A

Specification of the Valve

Type of Connection	Wafer
Actuation	Lever
Size	DN40~DN200 (1 1/2in~8in )
Pressure	10bar~20bar (1.0mpa~2.0mpa)
Testing Pressure	256psi
Medium	Water/Oil/Air
Medium Temperature	-25~180℃

Material of the Valve

Body	CF8/ CF8M/ CF3/ CF3M/ 2205/ 2507/ 1.4529/ 1.4406
Disc	DI/ CF8/ CF8M/ CF3/ CF3M/ 2205/ 2507/ 1.4529/ HC276/ C95400/ C95800
Stem	45#/ SS410/ SS416/ SS420/ SS304/ SS316/ SS316L/ 17-4/ 2205/ 2507/ 1.4529/ K500/ CF8/ CF8M/ HC276
Soft Seat	EPDM/ NBR/ SIL/ FKM/ FPM/ VITON/ UHMWPE

High-Density Casting for Lug Butterfly Valve

High-Density Casting: Zero Porosity Guaranteed

Our butterfly valve stainless bodies are produced from a high-density casting process. This ensures a solid, non-porous structure, completely free from sand holes and other casting defects. The result is superior strength and maximum durability.

Learn More About Our Process

THE SOURCE MANUFACTURER

For over 20 years, our reputation has been built on a foundation of deep material expertise and precision engineering. We control the entire process, from raw casting to final assembly, ensuring every valve meets our uncompromising standards.

FOUNDRY-LEVEL MATERIAL CONTROL

Founded by a casting expert, we guarantee material integrity. We use PMI testing to verify alloys, ensuring every stainless steel valve casting strictly adheres to ASTM/EN standards for optimal performance and longevity.

PRECISION CNC MACHINING

Our state-of-the-art CNC centers ensure every component's dimensions are machined to exact specifications. This precision is critical for the perfect fit and flawless operation of the wafer butterfly valve assembly, guaranteeing reliability.

PROVEN RELIABILITY & DESIGN

With two decades of field validation, our valve designs are not just theoretical; they are proven to be rational and reliable. This extensive experience means our products deliver consistent, trustworthy performance in real-world conditions.

Stainless Steel Butterfly Valves Manufacturers

Wholesale Stainless Steel Butterfly Valve

A Real-World Success Story

How JRVAL solved a critical failure point for a leading chemical processing plant, saving them from catastrophic losses.

The Challenge

A leading chemical manufacturer was experiencing repeated failures with their existing butterfly valves in a highly corrosive processing line. The competitor's valves suffered from rapid seat degradation and stem leakage, leading to unplanned shutdowns, significant maintenance overtime, and a constant safety hazard. Their reputation and production targets were at risk.

The JRVAL Solution

Our engineers analyzed the medium and operating conditions. We supplied our stainless steel handle wafer butterfly valve with a Duplex 2205 body and disc, paired with a specialized FKM seat. The key was not just the materials, but our SwiftSeat™ replaceable seat design, allowing for rapid, on-site maintenance without removing the entire valve from the pipeline.

"The switch to JRVAL valves was a game-changer. We went from monthly failures to over a year of uninterrupted, zero-leakage service. Their technical support and product quality are in a different league."

— Plant Operations Manager, Chemical Processing Facility

Industries Served

The following are the representative application industries of this valve. Since butterfly valves can be applied to almost all industries (as long as the temperature and pressure are in line), many industries have not been listed.

Petrochemical Industry

SwiftSeat™ Wafer Butterfly Valve enable up to 70% faster on-site seat replacement, drastically cutting downtime and reducing maintenance costs by 30% with a 500,000-cycle seat life.

Power Generation Industry

As one of leading stainless steel butterfly valves manufacturers, JRVAL offers valves in 304L, 316L, Duplex 2205, and Super Duplex 2507 stainless steels, meeting NACE MR0103/0175 to resist complex corrosion in power plants.

Municipal Water Supply

JRVAL hand lever operated butterfly valve undergo bubble-tight testing (API 598 Class VI), ensuring zero leakage and potentially saving a city water network over 5 million RMB annually in non-revenue water loss.

Marine Manufacturing

Our marine butterfly valve boast Lloyd’s Register, DNV, ABS, and CCS certifications, achieving an average MTBF over 25,000 hours for reliable shipboard operation.

Environmental Protection

For challenging applications like VOCs treatment, JRVAL, a wafer butterfly valve manufacturer, can supply specific coatings or Hastelloy options to meet stringent environmental demands.

Food Processing

JRVAL's sanitary butterfly valve feature FDA & (EC) 1935/2004 certified wetted parts and Ra ≤ 0.5μm surface polish, improving cleanability and reducing bacterial risk by over 30%.

Mining & Metals

JRVAL's ss butterfly valve feature reinforced stems and bushings with wear-resistant materials, reducing stem breakage risk by over 50% against high torque from slurries.

Refrigeration & Cold Storage

JRVAL's cryogenic butterfly valve offer ±1.5% flow control accuracy for cold storage brine/glycol systems, optimizing cooling efficiency by 5%, and achieve 2-4 second emergency shut-off in refrigerant lines, significantly reducing risk.

Seawater Desalination

Leveraging 316L, Duplex, and Super Duplex stainless steel options, JRVAL corrosion-resistant butterfly valve excel in seawater desalination, effectively resisting highly corrosive brines and ensuring long-term operational reliability

Designed For Any Environment

Corrosive Environments

JRVAL's PTFE lined butterfly valve with Hastelloy C-276 bodies deliver <0.02mm/year corrosion rate in wet chlorine gas – leveraging proprietary material database for cost-optimized solutions.

Particulate Environments

Replaceable-seat lever butterfly valves combat abrasive particles: Worn seats are field-replaced in minutes, extending service life by 200%+ and cutting maintenance costs 50-70% vs fixed-seat designs.

Vibration Environments

Lever operated butterfly valve with 17-4PH stem maintains API 609 sealing under vibration via dual eccentric design, produced in ISO9001 factory.

Space-Limited Environments

ISO 5752-compliant wafer valve (e.g. DN200 PN16 at 60mm face-to-face) save 70% axial space vs 230mm gate valves, certified to EN 558 Series 20 & API 609 Category A.

Low Temperature Environments

Cryogenic butterfly valve with SS304L/316L bodies eliminate brittle fracture (DBTT) at -20°C; L-grade carbon enhances weld integrity and cryogenic toughness.

Dense Piping Environments

Chinese-manufactured wafer style butterfly valve achieve EN 558 Series 20 ultra-short face dimensions for congested piping networks

Water Supply & Wastewater Treatment

Unlike fixed-seat alternatives that require full valve replacement upon damage, our design allows for rapid, cost-effective on-site seat replacement. For instance, in a wastewater treatment plant’s aeration tank, switching to JRVAL’s replaceable seat handle wafer butterfly valve reduced maintenance costs by 50-70% and cut maintenance time by over 60%, significantly enhancing operational efficiency and prolonging the valve’s lifespan.

HVAC Systems

Our HVAC butterfly valve offers superior performance with its efficient 90° quarter-turn operation. This design enables swift full open/close action and precise flow regulation, critical for rapid response and accurate control demands. Its low operating torque (30-50% reduction due to skeleton-free design) allows for easy manual operation via the lever butterfly valve, enhancing system efficiency and energy management.

Gas Systems

In gas systems susceptible to seat wear or corrosion from contaminants like dust, condensate, or H₂S, our butterfly valve lever type provides a critical advantage through its replaceable seat design. This feature enables swift, on-site seat replacement, eliminating the need to replace the entire valve. For highly flammable and explosive environments, this significantly reduces hot work risks and minimizes system downtime, ensuring enhanced safety and operational economics.

QUALITY & COMPLIANCE CERTIFIED

Our commitment to quality is verified by internationally recognized standards. We provide the documentation to prove it.

Quick Change Seat Stainless Steel Wafer Type Butterfly Valve - Lever

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Butterfly Valve Dimensions

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Replaceable Seat & Technical FAQ

Is the "replaceable soft seat" easy to replace? Does it require special tools?

Yes, replacement is extremely straightforward. Our innovative design allows you to easily extract and install a new seat by simply loosening the wafer bolts and removing the valve. No specialized tools are needed – just follow our clear, simple replacement guide.

What is the advantage of a seat with "over 60% rubber content"?

A higher rubber content significantly enhances elasticity and resilience. This improves the seal between the disc and seat, providing superior bubble-tight shut-off. Combined with premium rubber compounds (EPDM, NBR, Viton®), it results in exceptional resistance to aging, chemicals, and temperature, ensuring a longer, more reliable service life.

Can we install our own actuators on these valves? Are the top connections standardized?

Absolutely. Our valve stem tops and mounting platforms are designed to the universal ISO 5211 standard. This ensures seamless, direct attachment of any manual operator (lever, gearbox) or pneumatic/electric actuator from major brands, giving you maximum flexibility.

What's covered by your "material guarantee" – 304 or 316L stainless steel?

Our guarantee covers the exact material you specify. We offer both 304 (CF8) and 316L (CF3M/CF8M) stainless steel options to suit your application's corrosion resistance needs. Every valve is shipped with a full Material Test Certificate (MTC) to international standards, verifying its composition and quality.

Can you manufacture valves with AS 2129 Table E or BS 4504 PN16 flanges?

Yes. Our universal wafer design and comprehensive flange database allow us to manufacture valves compatible with global standards, including AS 2129 (Tables D/E/F/H), AS 4087, and BS 4504 (PN6-PN40). Simply specify your required standard and pressure class when ordering.

OUR SERVICE & GUARANTEE

Free Samples

Compare our quality against any brand. We're confident you'll choose JRVAL after an in-depth evaluation of our sample products.

2-30 Year Warranty

We stand by our craftsmanship. Enjoy a comprehensive warranty covering non-human damage, with spare parts readily available.

Verified Quality

Every shipment is backed by comprehensive documentation, including material test reports (MTR), heat treatment reports, and mechanical performance tests.