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Premium Marine & Industrial Valves

With over 10 years of experience, I-FLOW delivers high-performance, ISO 9001-certified valves for marine, offshore, and industrial applications. Trusted by clients worldwide for reliability, precision, and on-time delivery.

About I-FLOW

Qingdao I-Flow Co., Ltd. is a leading manufacturer and supplier of high-quality marine and industrial valves. With over a decade of experience, we specialize in delivering reliable, cost-effective valve solutions tailored to the demanding needs of global clients.

Strict Quality Control

Every valve is tested for leakage and performance. Certified annually by an ISO/IEC 17025:2005 accredited institute.

Prompt Caring Service

"Good valve with caring service" – we actively improve products and respond to customer needs with care.

On-Time Delivery

We keep our promises. With over 10 years in the industry, on-time delivery is part of our core commitment.

Excellent R&D

Our professional team supports customization and innovation under strict ISO 9001 management.

Trusted by Clients Worldwide

I-FLOW valves are sold to many countries and used across marine, offshore, and industrial sectors. Our commitment to quality, service, and innovation has made us a preferred partner for complex valve solutions.

Learn More About Us

Our Products

Explore our comprehensive range of marine and industrial valves, engineered for durability, precision, and compliance with international standards.

Gate Valve

Gate Valve

API600, MSS SP-70, BS5150, JIS F 7364 compliant. Available in cast steel, cast iron, and bronze.

  • Class 150 to Class 2500
  • OS&Y and NRS types
  • With open/close indicator
Ball Valve

Ball Valve

High-performance marine ball valves with full port design and anti-static features.

  • 150lb to 800lb ratings
  • Bronze and forged steel options
  • SDNR and union bonnet types
Butterfly Valve

Butterfly Valve

Double and tri-eccentric designs for high-pressure applications.

  • EN 593, DIN 3352 compliant
  • Wafer and lug types
  • Electric and pneumatic actuators
Check Valve

Check Valve

Prevents backflow in marine and industrial systems.

  • SS316 PN40 Thin Single Disc
  • Swing and lift types
  • High-pressure forged options
Globe Valve

Globe Valve

Precision flow control with bellow seal and forged steel variants.

  • DIN 3356 PN40
  • High-pressure SW end
  • Cast and forged steel
Control Valve

Control Valve

Automated flow regulation for critical systems.

  • Pneumatic and electric actuation
  • Customizable control logic
  • Marine-grade materials
Fire Valve

Fire Valve

Critical safety valves for fire suppression systems.

  • Class-approved designs
  • High-temperature resistance
  • Fast actuation
Strainer

Strainer

Protects systems from debris and contaminants.

  • JIS F 7121 compliant
  • Basket and Y-type
  • Easy maintenance design

Why Choose I-FLOW?

I-Flow Factory

ISO 9001 Certified Quality

Every valve is manufactured and tested under strict ISO 9001 quality control systems to ensure 100% compliance and reliability.

Customization Support

Our R&D team supports custom valve designs to meet specific project requirements, including automation integration.

Global Delivery Network

Products are exported to multiple countries with guaranteed on-time delivery and full documentation support.

After-Sale Service

We provide technical support, installation guidance, and responsive after-sale service to ensure long-term performance.

10+
Years Experience
50+
Countries Served
100%
Quality Tested
ISO
9001 Certified

Frequently Asked Questions

What standards do your valves comply with?

Our valves comply with international standards including API600, MSS SP-70, BS5150, JIS F, EN 593, and DIN 3352.

Do you offer custom valve solutions?

Yes, our R&D team supports customization for size, material, actuation, and control logic based on project needs.

Are your valves suitable for marine environments?

Absolutely. All our valves are designed for marine and offshore applications with corrosion-resistant materials and sealing.

How do you ensure product quality?

Each valve undergoes leakage testing and performance checks. We are ISO 9001 certified and audited annually by an ISO/IEC 17025:2005 accredited institute.

What is your delivery time?

We guarantee on-time delivery as promised. Standard lead times vary by product and order volume.

Get in Touch

For inquiries, quotes, or technical support, visit our official website to contact the I-FLOW team.

Visit Official Website

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