HP25 Series Ductile Iron Wafer Butterfly Valve - Pneumatic

1.5in~48in; PN6~PN25 (Class125~300)

Product Advantages

icon Precision-Machined Locating Notches: The valve body is engineered with integral locating notches for rapid and accurate alignment with flange bolts, ensuring a simplified and error-free installation.

icon Robust High-Pressure Body: Built with an extra-thick, high-grade ductile iron body, this valve surpasses Heavy-Body Series standards and is reliably rated for high-pressure applications up to PN25.

icon Guaranteed Material Integrity: We guarantee an optimized composition for our EN 1563 Grade EN-GJS-500-7 ductile iron. We utilize the beneficial upper range of key elements like Manganese for superior strength, while strictly controlling harmful impurities like Phosphorus and Sulfur to levels far below the industry norm.

Standards and Certifications

Design and Manufacture: API 609, EN 593, GB/T 12238, JIS B2032 & more. Other standards available on request.

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	Standard: Rack & Pinion Pneumatic Actuator Types: Double-Acting (DA), Spring-Return (SR - Failsafe) Accessories: Solenoid Valve, Limit Switch Box, Electro-Pneumatic Positioner Mounting: Direct Mount via ISO 5211 / NAMUR
Size	1.5in ~ 48in (DN40~DN1200) (Larger sizes available on request)
Pressure	PN6~PN25 / ANSI Class 125 ~ 150
Testing Pressure	Shell: 37.5 Bar (1.5 x PN25); Seat: 27.5 Bar (1.1 x PN25)
Applicable Media	Water, HVAC, Seawater, Chemical Processing, Automated Batching, Compressed Air, Light Slurries
Medium Temperature	-25°C to +180°C (-13°F to +356°F) Dependent on seat and disc material selection

Material of the Valve

Body	• Ductile Iron (Heavy Duty): GGG50 / GGG40/ ASTM A536
Disc	• Ductile Iron (Nickel-Plated): DI+Ni • Stainless Steel: CF8 (304), CF8M (316) • Duplex Steel: CD3MN (2205) • Aluminum Bronze: C95800
Shaft	• High-Tensile Steel: SS420, SS431 (Standard) • High-Performance: 17-4PH (SS630), Monel K500 • Note: Reinforced diameter for high-torque loads.
Seat	• Elastomers: EPDM (High Hardness), NBR • Fluoropolymers: PTFE/RTFE • Design: Bonded/Vulcanized for vacuum & high pressure.
Coating	• System: Fusion Bonded Epoxy (FBE) • Standard: Internal & External Coating • DFT: Min. 250 microns (10 mils)

PRECISION AUTOMATION FOR 25 BAR SYSTEMS

The HP25 Pneumatic series integrates our robust PN25 valve with a high-performance actuator for rapid, reliable, and remote flow control. Every assembly is function-tested for seamless performance.

ENGINEERED FOR AUTOMATED PERFORMANCE

Our HP25 valve and pneumatic actuator combination is designed for demanding industrial automation, delivering speed, reliability, and failsafe functionality where it matters most.

Heavy-Duty GGG50 Body

The foundation of our automated valve is a robust GGG50 ductile iron body. It provides the structural rigidity to handle the high-speed, high-torque cycles of pneumatic actuation in 25 bar systems, ensuring long-term reliability.

High-Performance Actuator

Featuring a rack-and-pinion design for consistent torque, our pneumatic actuators offer near-instantaneous open/close cycles. Available in spring-return (failsafe) and double-acting models to suit any process requirement.

Modular Control & Failsafe

Easily integrate solenoid valves, limit switches, and electro-pneumatic positioners for precise throttling. The spring-return option ensures the valve automatically moves to a safe position (open or closed) on loss of air supply.

KEY INDUSTRIES FOR PNEUMATIC AUTOMATION

Perfect for industries requiring rapid cycling, remote control, or failsafe operation. The HP25 pneumatic valve excels in automated process lines and critical utility systems.

Chemical Processing & Batching

In chemical plants, our valve enables precise, automated dosing of solvents. The fast-acting pneumatic actuator improves batch consistency and speed. Ideal with SS316 disc and PTFE seats. Not for highly corrosive concentrated acids.

Water & Wastewater Treatment

Automate flow control in large-scale treatment facilities. These valves are ideal for filter backwashing and remote isolation, controllable from a central SCADA system for enhanced operational efficiency and safety.

Food & Beverage Production

Used in utility lines (e.g., process water, CIP solutions) where automation is key. The pneumatic actuator allows for rapid switching between cycles. Unsuitable for direct contact with food products unless certified accordingly.

Industrial Air & Gas Systems

Provides reliable on-off control for large compressed air networks, inert gas lines, and vacuum systems. The quick shut-off capability minimizes system leakage and conserves energy, improving plant efficiency.

Marine & Ballast Control

Automates ballast and bilge systems on ships, allowing for rapid water transfer from a central control point. The robust GGG50 body with epoxy coating withstands harsh marine environments. Not for cryogenic LNG.

Bulk Material & Powder Handling

In silos and conveyors, the pneumatic valve offers quick shut-off for controlling the flow of powders and grains. The powerful actuator cuts through static media for reliable closure. Not for highly abrasive aggregates like sand or cement.

SCENARIOS DEMANDING PNEUMATIC AUTOMATION

These are environments where the speed, reliability, and remote control capabilities of a pneumatic actuator are essential for safety, efficiency, and process integrity.

Remote & Unmanned Operations

In tank farms or large facilities, a pneumatic butterfly valve actuator allows for immediate control from a central command center, eliminating the need for manual intervention in distant or hazardous locations.

Rapid Cycling & Batching

For processes requiring thousands of cycles per day, the durable design of the pneumatic butterfly valve actuator delivers unmatched speed and reliability, crucial for high-throughput manufacturing.

Emergency Shutdown (ESD) Systems

In safety-critical applications, a spring-return pneumatic butterfly valve actuator provides instant, reliable failsafe closure during a system alarm, protecting personnel and assets.

Hazardous (ATEX) Environments

Pneumatic actuation is inherently spark-free, making our pneumatic butterfly valve actuator the ideal choice for flammable atmospheres where electric actuators would require costly special enclosures.

Case Study: Optimizing a Malaysian Water Booster Pump Station with Reliable Automated Valves

How a regional EPC firm mitigated project risks by partnering with JRVAL, achieving a 22% cost reduction on the valve package while improving lead time and ensuring long-term performance for a critical water infrastructure project.

At a Glance: Key Performance Indicators (KPIs)
Product Deployed	JRVAL HP25 Wafer Butterfly Valve (DN200 to DN500) with Double-Acting Pneumatic Actuator, SS304 Disc, EPDM Seat
Application	Automated isolation and flow control in a municipal water booster pump station.
Key Challenge	Sourcing a reliable, automated valve solution that fit within a tight budget, avoiding both the high cost of premium European brands and the quality risks of low-cost, untraceable suppliers.
Cost Optimization	Achieved a 22% cost saving on the valve automation package compared to the initial quotes from European brands, freeing up significant project capital.
Supply Chain Performance	Secured an 8-week delivery schedule for all 45 valve assemblies, a 40-50% reduction from the 14-16 week lead times quoted by other suppliers.
Quality Assurance	Material integrity confirmed via client-witnessed in-house PMI and hydrostatic testing. All valves demonstrated bubble-tight shutoff per API 598 (Rate A).
Long-Term Value	Protected by a 24-month comprehensive warranty. Standardized design ensures easy availability of spare parts post-warranty, minimizing future maintenance costs (TCO).

The Client & The Challenge

A leading EPC firm in Malaysia was tasked with constructing a new water booster pump station to serve a growing urban area. The project's success depended on sourcing reliable automated valves for the main pipelines.

The Project Manager, Mr. Faisal bin Abdullah, faced a classic procurement dilemma. The initial specifications called for premium European-made valves, but their quotes were pushing the project over budget. On the other hand, previous experiences with low-cost regional suppliers had resulted in premature failures and costly service interruptions.

"We needed a partner, not just a supplier," Mr. Faisal explained. "We required a manufacturer with verifiable quality control and a transparent supply chain, but at a price point that respected our project's financial constraints. The risk of using valves with questionable material origin was simply too high for public infrastructure."

The Vetting Process: A Focus on fundamentals

Mr. Faisal's team initiated a rigorous vetting process for alternative suppliers. JRVAL was shortlisted due to our status as a source manufacturer with an in-house foundry. The evaluation focused on three core areas:

Material Traceability

Rather than just accepting an MTR (Material Test Report), Mr. Faisal's team was concerned with true material integrity. We addressed this by providing detailed casting heat numbers for the GGG50 ductile iron bodies and SS304 discs. We were transparent about our in-house testing capabilities and invited the client to witness the PMI (Positive Material Identification) testing of the raw materials themselves. This transparency was a key differentiator.

Manufacturing Control

Owning our own 81,426m² foundry and 11 key CNC machining centers was a critical factor. It demonstrated to the client that we had direct control over the entire production process, from molten metal to final assembly. This vertical integration was the foundation for our ability to commit to a firm and significantly shorter lead time.

Technical Competence

Our team provided detailed actuator sizing calculations to ensure the selected pneumatic actuators provided sufficient torque with a 30% safety factor for the specified operating pressure. We also submitted our standard Inspection and Test Plan (ITP), which outlines every QC checkpoint, including dimensional checks (using calibrated calipers), coating thickness tests, and hydrostatic pressure testing to 1.5x (shell) and 1.1x (seat) the rated pressure as per EN 12266-1.

The JRVAL Solution: Value-Engineered Reliability

Based on the successful vetting process, JRVAL supplied 45 units of the HP25 Pneumatic Butterfly Valve assemblies.

Optimized Supply Chain

By managing the entire production in-house, we delivered all valve assemblies within the promised 8-week timeframe. This allowed Mr. Faisal's team to stay on schedule with their mechanical installation, mitigating the risk of project delays that often arise from long valve delivery times.

Guaranteed Performance

Every single valve was factory-assembled and pressure-tested, with reports included in the shipping documentation. This ensured bubble-tight shutoff and proper functioning right out of the box, drastically reducing on-site commissioning issues and labor costs for the EPC firm.

Comprehensive After-Sales Support

We backed our product with a clear 24-month warranty covering free replacement of spare parts. Furthermore, because our valves are built to international standards, the client has assurance that common wear parts like seats and seals can be easily sourced even after the warranty period, ensuring a low Total Cost of Ownership (TCO).

"JRVAL's transparency was what won us over. Their control of their own foundry gave us confidence in the material quality, which was our primary concern. They delivered a fully-tested, reliable product on a tight schedule and helped us bring this phase of the project in under budget. For the price point, the engineering value is excellent."

Portrait of Mr. Faisal bin Abdullah, Project Manager

Mr. Faisal bin Abdullah Project Manager, Regional EPC Firm, Malaysia

HP25 Series - Pneumatic Butterfly Valve

Reliable automation for your 25 bar systems.

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Butterfly Valve Dimensions

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Sample MTC (EN 10204 3.1) - Material Traceability

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Frequently Asked Questions

How do you guarantee the material quality of your GGG50 body and SS316 disc?
As a source factory with our own foundry, we control quality from the raw material melt. Our process includes:
- In-House Spectrum Analysis: We test every batch of molten iron and steel before pouring to ensure it meets GGG50 (ASTM A536) and CF8M (SS316) chemical composition standards.
- Full Traceability: Each valve body is marked with a unique heat number, allowing us to trace it back to the specific material batch and test reports.
- Standard Documentation: Material Test Reports (MTRs) to EN 10204 3.1 are provided as standard with every shipment, verifying the material's mechanical and chemical properties.
What is the difference between your Spring-Return (SR) and Double-Acting (DA) actuators?
Both are high-performance rack & pinion actuators. The key difference is their operating principle and application:
- Double-Acting (DA): Uses compressed air to both open and close the valve. It is simpler and more cost-effective for general automation where a failsafe position is not required.
- Spring-Return (SR): Uses air to open (or close) the valve and a powerful internal spring to force it back to its "home" position upon loss of air pressure. This provides critical "failsafe" functionality for safety-related systems or emergency shutdowns.
What standard defines your 'bi-directional zero leakage' claim?

Our "zero leakage" performance for soft-seated valves meets API 598 Rate A. This is the strictest industry standard for seat testing, defined as "no visible leakage" (i.e., bubble-tight) when tested with water for a specified duration.

This is achieved through our precision-machined GGG50 body, proprietary bonded seat design, and a high-hardness EPDM elastomer that ensures a tight seal in both flow directions, even after extensive cycling.
What is your warranty policy and after-sales support?

We provide a comprehensive 24-month warranty from the date of shipment. This covers defects in materials and workmanship, and we will supply replacement parts (e.g., seats, seals) free of charge during this period.

Because our valves are built to international standards (e.g., ISO 5211 actuator mounting), it is easy to source spare parts from us or third-party suppliers after the warranty period, ensuring a low total cost of ownership (TCO). Our team also provides lifetime online technical support to assist with troubleshooting.
Can I arrange for a third-party inspection (e.g., SGS, BV)?

Absolutely. We welcome and will fully cooperate with any third-party inspection agency appointed by the client. We are confident in our processes and products.

Please note that while we provide full access and documentation to the inspectors at no charge, the cost of the inspection service itself is borne by the client. We can provide all necessary QC reports, MTRs, and test certificates to facilitate a smooth and efficient inspection.
Is this pneumatic butterfly valve suitable for food/beverage or explosive (ATEX) environments?

No. The HP25 series is engineered for general industrial and water service applications. It does not carry the specific material certifications (e.g., FDA, WRAS) for sanitary use or the design approvals for explosive atmospheres (ATEX).

Our focus is on delivering exceptional reliability and value for our target industries: water/wastewater treatment, HVAC systems, chemical processing (non-explosive media), and marine applications. We believe in being transparent about our product's intended service to ensure you get the right valve for the job.