Quality management system
The certified scope includes the design, development and production of industrial valves, supporting a structured approach from product definition through manufacturing.
HF-520 · Centerline wafer design
Lightweight Aluminum Butterfly Valve Solutions for Water, HVAC & Equipment Systems
An ADC12 die-cast aluminum body platform with DN32–DN300 datasheet coverage, multiple actuation options and selection support grounded in the intended service conditions.
- DN32–DN300datasheet range
- 0.6 / 1.0 / 1.6 MPapressure options
- 5 actuation routesmanual to automated
ADC12 aluminum bodyA lighter valve-body alternative where the application permits.
HENO at a glance
HF-520centerline wafer model
ADC12die-cast aluminum body
GB/T 13927-2022pressure-test reference
ISO 9001:2015certified quality management system
Company quality system
ISO 9001:2015 certified quality management
CQC certificate 00126Q304197R001 covers HENO's design, development and production of industrial valves, excluding the manufacture of special equipment.
Certificates available online
Customers can review the Chinese and English CQC certificates and the associated IQNET certificate online.
View certification details →Product portfolio
Aluminum butterfly valves plus a broader valve range
HF-520 aluminum butterfly valves are HENO's flagship range. High-performance butterfly valves, PFA-lined valves and ductile-iron or stainless material options support wider industrial selection needs.
HF-520
Aluminum butterfly valves
Centerline wafer valves with an ADC12 die-cast aluminum body and manual or automated operator options.
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Offset soft-seat and metal-seat options
High-performance butterfly valves
Catalog-listed Class 150/300 wafer and flanged configurations for project-specific material and drawing review.
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Seven lined-valve families
PFA-lined valves
Fluoropolymer-lined butterfly, ball, diaphragm, check and plug valve configurations for media-compatibility review.
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Material-led project selection
Ductile iron & stainless valve options
Ductile-iron butterfly valve examples plus stainless body and trim references across selected catalog families.
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A practical body-material option for compatible systems
HF-520 combines a centerline wafer format with a die-cast aluminum alloy body. It is positioned for projects that value lower body weight and compact integration while still requiring service-specific material review.
- 01Lighter body alternative
Aluminum alloy can reduce handling load relative to traditional cast iron and stainless-steel body choices; exact assembled weights must be confirmed by size and configuration.
- 02Multiple operator routes
Bare shaft, handle, worm gear, pneumatic and electric configurations support both local and automated system concepts.
- 03Selection before promise
Seat, disc, pressure, temperature, medium and flange requirements are reviewed together before suitability is stated.
Actuation range
Five ways to build the operating package
Operator selection depends on size, duty, access, utilities, control signal and environmental conditions—not only on a preferred actuator type.
Applications
Designed for water and equipment-system selection
Share the medium, pressure, temperature and operating conditions so HENO can match the valve materials and configuration to the duty.
General water systems
Isolation and flow-control duties after pressure, temperature, medium chemistry and seat compatibility are checked.
HVAC systems
A lightweight body option for suitable chilled-water and general HVAC circuits.
Water-treatment equipment
For equipment and packaged treatment systems handling compatible, non-aggressive media.
Pump sets and skids
Compact wafer installation for compatible pump, utility and packaged-equipment assemblies.
Quality testing
Documented shell and seat pressure testing
Report WFM202503103 records shell, low-pressure seat and high-pressure seat tests for an HF-520 PN16 DN100 sample under GB/T 13927-2022.
Shell test
Water · 2.40 MPa · 60 s · Conforming
Low-pressure seat test
Air · 0.60 MPa · 60 s · Conforming
High-pressure seat test
Water · 1.80 MPa · 60 s · Conforming
Technical resources
Better RFQs begin with better service data
These guides help buyers compare materials, screen service conditions and prepare a review-ready inquiry.
Aluminum vs. Cast Iron vs. Stainless Steel Butterfly Valve Bodies
Compare butterfly valve body materials by weight, corrosion behavior, cost context and application fit—without one-size-fits-all claims.
Read article →How to Select a Butterfly Valve for Water, HVAC and Equipment Systems
A practical selection sequence covering medium, pressure, size, temperature, connection, materials and actuation.
Read article →Butterfly Valve RFQ Checklist
The information a valve supplier needs to review size, pressure, temperature, medium, connection and actuation.
Read article →Selection support
Start with the service conditions, not a generic part number.
Share the medium, pressure, size, temperature, connection standard and actuation requirement. We will use them to frame the next technical review.