Seawater Desalination Water & Marine Oil & Gas Power Generation HVAC Butterfly Valve Mining & Metals

JRVAL-A Butterfly Valve Factory for DESALINATION

As a source butterfly valve manufacturer with integrated casting, we provide reliable, customized solutions for every stage of your process—from intake to product water.

View Application Guide

Application-Specific Valve Guide

Select the application area to see our recommended valve configuration, engineered for optimal performance and lifespan in that specific environment.

FIELD-PROVEN ENGINEERING

Our technical expertise translates into real-world performance. See how we solve complex challenges for desalination plants worldwide.

The Challenge

System: High-pressure RO feed line (PN100) in a major Middle East desalination plant.
Problem: Incumbent valves from a competitor experienced seal failure and stem leakage after only 12 months, caused by the high-pressure, high-chloride environment.
Goal: Achieve long-term, zero-leakage isolation to eliminate unplanned downtime and reduce total cost of ownership.

Our Engineered Solution

Valve Specified: Triple Offset Double Flanged Butterfly Valve (DN400, PN100).
Material Configuration: Full Super Duplex (2507) body, disc, and stem, with a multi-layered SS316+Graphite metal seat.
Verified Outcome: The valve has provided 3+ years of continuous, zero-leakage service. The client has since standardized our TOV for all critical high-pressure applications.

"We transitioned from frequent valve failures to zero-leakage performance on our main RO feed after adopting this engineered TOV solution. "

— Lead Mechanical Engineer, Major Coastal Desalination Project

JRVAL-THE SOURCE FACTORY

We are not just a supplier; we are your manufacturing partner. Our integrated capabilities provide unmatched quality control, flexibility, and value.

Source Factory · Flexible Customization

Our in-house foundry allows us to control quality from the raw material. This means you can freely combine body, disc, stem, and seat materials to achieve the best cost-performance for your specific operating conditions, without paying for over-engineering.

Integrated Casting · Superior Performance

From mold development to precision casting, we have complete control over the entire process. This ensures every valve possesses exceptional mechanical strength and dimensional accuracy, laying a solid foundation for long-term stability under high pressure and frequent operation.

Reliable Sealing · Standard, Not an Extra

All our soft-seated butterfly valves achieve bi-directional bubble-tight zero leakage (ISO 5208 Rate A) as a standard feature. In critical isolation points like pre-treatment and product water lines, superior sealing is our default, providing you with dependable protection at no extra cost.

From Raw Material to Finished Product

1. Raw Material Inspection

2. In-House Foundry Casting

3. Precision CNC Machining

4. Fusion Bonded Epoxy Coating

5. Assembly & Pressure Testing

6. Final Product Ready for Shipment

Technical Deep-Dive

Material Science for Seawater Service

Selecting the right alloy is the single most important factor for valve longevity in desalination. Here’s why we use specific grades:

Duplex (2205) & Super Duplex (2507): These are the workhorses. Their high chromium, molybdenum, and nitrogen content provides excellent resistance to chloride pitting and crevice corrosion. PREN value (Pitting Resistance Equivalent Number) quantifies this: 2205 PREN ≈ 35, 2507 PREN > 40. Super Duplex is essential for high-pressure, high-salinity brine.
Nickel-Aluminum Bronze (e.g., C95800): Offers outstanding resistance to biofouling and general seawater corrosion. It's an extremely cost-effective choice for seawater intake lines where marine growth is a primary concern.
Monel & Hastelloy: These nickel-based alloys provide ultimate resistance in the most aggressive conditions, such as high-velocity, high-concentration brine or specific chemical dosing lines. They are specified when even Super Duplex may face challenges.

Actuation & Control Options

The right actuator ensures reliable operation and system safety. We configure each valve for its specific duty:

Manual (Lever / Gear)
For isolation and infrequent operation. We offer lockout-tagout (LOTO) accessories for safety, and gear operators can be fitted with a tamper switch to signal unauthorized operation.
Use-case: Equipment Isolation Valves.
On/Off Actuation (Electric / Pneumatic)
For automated open/close sequences. This is the most common automated setup for isolation tasks.
Use-case: Pre-treatment filter backwash sequence.
Modulating Actuation (Electric / Pneumatic)
For precise flow control, typically using a 4-20mA signal. Paired with our high-performance or triple-offset valves for accurate throttling.
Use-case: Controlling flow to energy recovery devices.
Fail-Safe Actuation (Spring-Return Pneumatic)
Designed for emergency shutdown (ESD). The valve automatically closes (or opens) upon loss of air pressure or power, ensuring plant safety.
Use-case: High-pressure pump outlet emergency isolation.

ISO9001:2015

Certified Quality Management

CE-PED 2014/68/EU

Pressure Equipment Directive

ISO 5208 Rate A

Bubble-Tight Leakage Test

EN-ISO 12944 C5-M

Marine Coating Standard

Customer-Specific

WRAS, NSF-61, etc. available

Engineer Your Plant's Reliability

Valve failure shouldn't limit your process. Partner with our engineering team to specify a solution that delivers quantifiable performance and long-term asset integrity.

Consult Our Desalination Experts