Worm Gear Operated Double Flanged Butterfly Valve

Designed for manual isolation in flanged pipework, this worm gear operated butterfly valve combines a double-flanged body layout with handwheel-driven quarter-turn control. The configuration suits installations where a compact rotary valve and bolted flange interface are required.

Category

Designed to International Standards

GB API ASME ANSI JIS BS DIN

This worm gear operated double flanged butterfly valve is configured for manual flow isolation in flanged pipework. Its handwheel-driven gearbox and double-flanged body provide a straightforward rotary-valve format for project-specific selection.

Key Features

  • Worm gear and handwheel manual operation.
  • Double-flanged body configuration.
  • Quarter-turn butterfly-valve form.
  • Flanged installation layout.

Applications

Suitable for water-treatment trains, utility distribution and general process pipework where manual isolation is required. Final selection should consider the medium, line size, temperature, pressure and mating flange requirements.

  • Butterfly Valve

Typical Specifications

SpecificationDetail
Valve typeButterfly valve
OperationWorm gear with handwheel
End connectionDouble flanged
Selection ConsiderationsConfirm materials, pressure rating and flange requirements against project data.

ABOUT ZPVE

Industrial Valve Manufacturer With Our Own Plant

Butterfly, ball, gate, globe, check and hydraulic control valves come from one plant, in sizes from DN6 to DN3000 and pressure classes from 150 to 4500. Send a specification or drawing, standard or non-standard, and receive confirmed material, dimensions and testing before a quotation.

Valve production floor at the ZPVE manufacturing plant
One Plant, Start to Finish

Designed, Machined and Tested Under One Roof

CAD design, machining and pressure testing all happen inside the plant before a valve ships.

100,000 Valves Produced a Year Produced in an 8,000 m² manufacturing plant.
Quality Control Before Dispatch
  • SPECIFICATIONCheck the drawing and order confirmation against each valve before dispatch.
  • MATERIALIdentify and trace material certificates for each production batch.
  • DIMENSIONSRecord dimensional inspection results for the valves in an order.
  • PRESSURE TESTRecord a shell and seat pressure test for every valve.
  • DOCUMENTATIONControl document revisions so drawings match production.
  • CERTIFICATIONPrepare certification documents. Accept third-party inspection appointed by the buyer.
Butterfly, ball, gate, globe, check and hydraulic control valves at ZPVE

Six Valve Categories From One Plant

Butterfly, ball, gate, globe, check and hydraulic control: six valve categories from one plant.

Valve Manufacturing Process
  1. 01Design each valve in CAD before it reaches the shop floor.
  2. 02Identify and mechanically test material before machining starts.
  3. 03Machine valve components on CNC lathes and boring machines.
  4. 04Spray-weld the seating surface with plasma equipment.
  5. 05Inspect welds and castings with non-destructive and ultrasonic testing.
  6. 06Pressure-test the shell and seat of every valve before dispatch.
Valves prepared for dispatch at the ZPVE plant

Factory-Direct Pricing, No Trading Margin

ZPVE prices quotations factory-direct, without a trading company margin.

Certifications
  • ISO 9001, Manufacturing scope
  • CE product conformity
  • Pressure Equipment Directive (PED)
  • WRAS water-system approval

EAC conformity applies alongside API, ASME, ANSI, GB, JIS, BS and DIN valve standards. Ask us which certificate or standard a project needs.

Get a Quote

Request a Valve Quotation Today

Send us your specs — this goes to our engineers directly, not a call center. No exact numbers yet? Tell us what you know.

Factory-Direct Pricing

Non-Standard Sizes Accepted

Inspection Welcome

Address

Zhangping City, Fujian Province, China

Support

+86 18203235561
lucas@zpvevlave.com

Send what you have. We confirm the rest.

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ZPVEVLAVE · Industrial Valve Manufacturer

Get Your Quotation Within 24 Hours

Contact ZPVEVLAVE for industrial valve enquiries, technical information, project quotations and ordersupport.

WhatsApp

+86 18203235561

Email

lucas@zpvevlave.com