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Pumps & Valves
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DN80 Gate Valve

  • Material:Grade 304 Stainless Steel (CF8 / 1.4301 equivalent)
  • Valve Standards:DN80 / CL150 (Class 150)
  • Unit Weight:46.33 kg 
  • Casting Tolerance:ISO 8062 (GB/T6414) CT6 Grade

Description

Technical Specifications & Capabilities

Parameter / Process Specification & Technical Highlights Advantage / Value
Material Grade 304 Stainless Steel (CF8 / 1.4301 equivalent) Excellent general corrosion resistance and durability for versatile industrial pipeline media.
Valve Standards DN80 / CL150 (Class 150) Compliant with international flange and pressure rating standards for seamless pipeline integration.
Unit Weight 46.33 kg (Heavy-Duty Large Scale) Demonstrates our advanced capability in handling heavy, large-scale precision investment casting.
Advanced Core Process Water-Soluble Core Molding for wax mold pressing Enables the creation of complex, seamless inner cavities with ultra-smooth fluid channels, minimizing pressure drop.
Tooling Design Optimized mold structure Reduces internal stress during casting and minimizes potential subsurface defects in thick-walled sections.
Casting Tolerance ISO 8062 (GB/T6414) CT6 Grade High near-net-shape accuracy, drastically reducing secondary CNC machining time on flanges and sealing faces.

Rigorous Quality Control for Heavy-Duty Castings

To ensure long-term pressure containment and flawless structural integrity under industrial environments, we execute strict final inspections:

  • Water-Soluble Core Residue Check: 100% inspected to ensure the complex inner cavity is perfectly clean, clear, and free from any core residues.
  • Dimensional Integrity (CMM): Precision checking via Coordinate Measuring Machines to verify critical flange alignments, wall thicknesses, and sealing face concentricity against your CAD drawings.
  • Airtightness & Pressure Testing: High-pressure pneumatic/hydraulic testing is performed to ensure the heavy-duty body achieves a 100% leak-proof seal.
  • Material Verification: Validated by Spectrometers for precise chemical composition (Cr/Ni ratios) and tested for mechanical properties.
  • Non-Destructive Testing (NDT): Processed via Liquid Penetrant Testing (LPT) to guarantee a subsurface structure completely free of cracks or porosity.

Custom OEM / ODM Services

  • Tailored Engineering: Fully customizable for various valve types (Globe Valves, Ball Valves, Gate Valves) and ratings (CL300, CL600) based on your 2D/3D blueprints (STEP, IGES, DWG).
  • Flexible Surface Treatments: Available with sandblasting, acid passivation (for enhanced corrosion layer), or tailored pickling finishes.
  • Complete Documentation: Full material mill test certificates (EN 10204 3.1) and CMM dimensional logs are provided with every delivery.

Custom DN80 Gate Valve Investment Casting

This dn80 gate valve is presented as a representative custom‑manufactured component for Industrial pipeline media; Gate‑valve body / heavy‑duty pressure‑containing valve application Honyang Cast develops similar parts from customer drawings rather than offering a fixed catalog specification.

The manufacturing plan must connect the part's functional geometry—DN80 / CL150 (Class 150); Heavy, large‑scale valve casting; Complex inner cavity; Thick‑walled sections and flanged sealing faces—with tooling, investment casting, machining and measurable inspection requirements. Final dimensions, interfaces and acceptance criteria are confirmed during drawing review.

PROJECT‑SPECIFIC SUPPLY

Material grade, dimensions, tolerance zones, machining allowance, surface condition, operating requirements and inspection records are confirmed after review of the customer’s 2D drawing, 3D model and project specification.

Key Technical Parameters & Custom Specifications

The parameter set is selected for this component’s function. Unknown values remain drawing‑controlled and must not be replaced with generic catalog data.

Engineering Item Reference / Custom Requirement Verification Basis
Material grade Grade 304 Stainless Steel (CF8 / 1.4301 equivalent) Confirm governing standard and chemistry requirements.
Part weight 46.33 kg Confirm target weight and allowable variation when relevant.
Functional geometry DN80 / CL150 (Class 150); Heavy, large‑scale valve casting; Complex inner cavity; Thick‑walled sections and flanged sealing faces Identify drawing datums and critical‑to‑function features.
Casting / process reference Precision investment casting; Water‑soluble core molding for wax‑mold pressing; Optimized tooling/mold structure; ISO 8062 (GB/T6414) CT6 casting tolerance; Secondary CNC machining of flanges and sealing faces; Optional sandblasting, acid passivation or pickling stated as services Confirm which steps apply to the quoted production route.
Dimensions and tolerances To be confirmed from customer drawing. Define casting tolerance separately from machined dimensions and GD&T.
Operating conditions To be specified by customer. Provide medium, load, temperature, pressure, speed or hygiene requirements as applicable.
Recommended additional fields Supply scope; Customer drawing/revision; Material grade; Nominal size/rating; Casting and machined weights; Flange standard; Wall‑thickness map; Machining datums; Pressure‑test specification; NDT requirements Complete before publishing numeric claims or quoting production.

Part Design & Structural Features

Structural Feature Why It Matters Manufacturing Response
DN80 / CL150 (Class 150) This feature influences fit, flow, load transfer, manufacturability or downstream assembly. Define datums, sealing or mating interfaces, machining allowance and integrity checks for the pressure or structural boundary.
Heavy, large‑scale valve casting This feature influences fit, flow, load transfer, manufacturability or downstream assembly. Define datums, sealing or mating interfaces, machining allowance and integrity checks for the pressure or structural boundary.
Complex inner cavity This feature influences fit, flow, load transfer, manufacturability or downstream assembly. Define datums, sealing or mating interfaces, machining allowance and integrity checks for the pressure or structural boundary.
Thick‑walled sections and flanged sealing faces This feature influences fit, flow, load transfer, manufacturability or downstream assembly. Define datums, sealing or mating interfaces, machining allowance and integrity checks for the pressure or structural boundary.

Manufacturing Process & Machining Plan

Manufacturing Process & Machining Plan.jpg

A project‑specific route is established after review of geometry, alloy, tolerance, volume and validation requirements.

  1. Drawing and DFM review — identify functional interfaces, wall transitions, draft, machining allowance, datums and inspection access.
  2. Tooling and pattern planning — develop the wax tooling, core strategy and pattern assembly method required by the approved geometry.
  3. Investment casting — control wax pattern, ceramic shell, melting, pouring and solidification for the selected alloy and part geometry.
  4. Shell removal and finishing — remove gating, clean the casting and prepare critical areas for inspection or machining.
  5. CNC machining where required — machine sealing faces, bores, threads, holes or mounting interfaces defined by the drawing.
  6. Final inspection and records — verify agreed characteristics and compile project‑required material, dimensional or NDT records.

Source Page Process References

  • Precision investment casting — applicability and scope to be confirmed for this project.
  • Water‑soluble core molding for wax‑mold pressing — applicability and scope to be confirmed for this project.
  • Optimized tooling/mold structure — applicability and scope to be confirmed for this project.
  • ISO 8062 (GB/T6414) CT6 casting tolerance — applicability and scope to be confirmed for this project.
  • Secondary CNC machining of flanges and sealing faces — applicability and scope to be confirmed for this project.
  • Optional sandblasting, acid passivation or pickling stated as services — applicability and scope to be confirmed for this project.

PROCESS SCOPE

Investment casting and CNC machining are described as the core route. Heat treatment, coating, polishing, balancing, pressure testing, radiographic testing, PPAP or other special processes must be shown as project‑specific unless their scope is confirmed.

Custom Development Capability

Honyang Cast supports drawing‑based development of dn80 gate valve and related investment cast components from manufacturability review through sample approval and repeat production.

  1. RFQ input — submit 2D drawing, STEP/IGES model, material, annual volume, operating conditions and critical characteristics.
  2. DFM review — align casting feasibility, core or gating strategy, machining allowance, datum scheme and inspection approach.
  3. Tooling and sample — develop tooling, produce initial samples and inspect agreed characteristics.
  4. Customer approval — review samples, dimensions and records under the agreed approval process.
  5. Production delivery — supply as‑cast, machined, finished or assembly‑ready parts according to the confirmed scope.

Application Value & Service Requirements

Application Requirement Manufacturing Value
Drawing‑defined fit and function A part‑specific DFM and inspection plan links casting geometry to the actual assembly and operating requirement.
Integrated complex geometry Investment casting can consolidate features and reduce fabrication or excessive stock removal where the approved design supports it.
Repeatable critical interfaces Controlled datums, machining and inspection support consistent assembly of functional surfaces and mating features.
Material and process traceability Agreed material and inspection records provide evidence against the drawing and quality plan.
Product‑specific value Demonstrate capability for heavy, complex pressure‑boundary valve castings with soluble‑core cavity formation and downstream machining.

Design Inputs Required From the Customer

  • 2D manufacturing drawing and 3D model in STEP, IGES or another agreed format.
  • Material grade or operating‑performance requirements.
  • Service medium, load, temperature, pressure, speed, vibration or hygiene conditions as applicable.
  • Critical dimensions, GD&T, machining datums and surface‑finish requirements.
  • Required NDT, material certificates, dimensional reports and approval process.
  • Estimated annual volume, batch size and target timing.

CALL TO ACTION

SEND YOUR DRAWING FOR A MANUFACTURABILITY REVIEW

Upload the drawing and 3D model for your dn80 gate valve together with material, quantity, operating conditions and inspection requirements. Our team will review the casting route, machining scope and quality plan before quotation.

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