Jianqiao Valve Industry Group Co., Ltd. Jianqiao Valve Industry Group Co., Ltd.
Minimum Flow Valve

Minimum Flow Valve

Minimum Flow Valve
Minimum Flow Valve

Minimum Flow Valve
Minimum Flow Valve

Minimum Flow Valve

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Nominal Diameter: 2" ~ 24"

Nominal Pressure: 150 ~ 2500 lb

Mediums: Water, oil, gas, chemicals, steam

Temperature Range: ≤ 650°C

Minimum Flow Valve

Product Overview

The Minimum Flow Valve is designed to maintain a minimum flow rate in pipelines, protecting pumps and systems from damage caused by low-flow conditions. It ensures system stability, reduces vibration, and improves operational safety. The valve features robust forged steel construction, precise flow control, and long-term reliability.

OEM & Customization Capabilities:

  • Full OEM support including branding, design, and packaging
  • Customizable sizes, pressure ratings, and materials
  • Optional connection types (flanged, threaded, butt-welded)
  • Adjustable minimum flow settings according to system requirements
  • Surface treatment options for corrosion resistance and special environments

Certifications:

  • ISO 9001 Quality Management System
  • API 6D / API 602 (depending on model)
  • CE / PED compliance
  • Fire-safe, hydrostatic, and functional testing certifications

Parameter Specifications

Parameter Specification / Range
Valve Type Minimum Flow Valve
Material (Body/Bonnet/Disc) Forged Steel (A105, F22, CF8, CF8M, etc.)
Size Range 1/2" – 12" (DN15 – DN300)
Pressure Rating Class 150 – Class 1500 (PN16 – PN250)
End Connection Flanged, Butt Welded, Threaded
Working Temperature -29°C to 550°C (depending on material)
Seal Type Metal-to-Metal / Soft Seal (PTFE, Graphite)
Operation Type Automatic (spring-assisted, flow-controlled)
Minimum Flow Setting Adjustable based on system requirements
Testing API 598 / ISO 5208

Industry Applications

Minimum Flow Valves are commonly used in industries where pump protection and consistent flow are critical:

  • Power Generation: Protecting boiler feed pumps and cooling systems
  • Oil & Gas: Maintaining minimum flow in pipelines and processing units
  • Petrochemical & Chemical: Protecting high-pressure pumps in chemical processing
  • Water & Wastewater: Pump stations and municipal water supply systems
  • Industrial Manufacturing: Hydraulic systems, lubrication circuits, and process control
  • Marine Applications: Cooling circuits, ballast systems, and engine lubrication

Material customization plan

Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.

Structural optimization design

For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.

Interface standard adaptation

Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.

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