APPLICATION & COMPONENTS

Fire-service & hose connections

Define the external supply connection, hose outlet and branch body by function, orientation and exact interface standard.

Fire Protection Water Systems

Locate the part.
Define the requirements.

Select a component group below.

For FDC, hose-valve and connection OEMs. Separate the machined casting from clappers, seals, springs and swivels in the complete assembly.

Generated images illustrate the context and component categories. They are not Zhiren project photographs or engineering drawings.

Select a group. Identify your part.

Choose a component to view its function, material candidates and drawing requirements.

Illustrative component locations: Fire department connection

Numbered locations identify component-family examples. Illustrations do not define dimensions, material grade or interchangeability.

Conceptual part illustration

COMPONENT GUIDE

Fire department connection body

External fire-service supply inlet to a building water system

Provides the drawing-defined inlet, outlet and internal passage of an FDC body or subassembly.

Manufacturing & delivery form
Complex-passage casting with connection machining.

FDC designs can use cast brass or ductile iron. Confirm the actual drawing and material; listed copper-alloy grades require separate design approval.

Material candidates

Customer specified Approved material to be defined

No default copper-casting alloy is established for this component.

Obtain the approved metal, seal and coating specifications from the equipment owner before assessing a manufacturing route.

UNS C83600 Leaded red brass

A candidate for a valve disc or clapper only when the approved drawing specifies this alloy.

An application candidate, not a confirmed equipment bill of materials or available Zhiren grade. Do not default to potable-water use.

UNS C87600 Cast copper-silicon alloy

A drawing-led candidate for selected connection and valve components.

Not interchangeable with wrought brass grades. The customer must approve the exact alloy, manufacturing form and service.

Confirm the drawing, actual duty, material standard and manufacturing condition. Material substitutions require customer approval, and supply scope is agreed after component review.

Component RFQ requirements

Inlet and outlet layout: Identify the external supply function, branch count, orientation, outlet direction and approved drawing.
Local interfaces: Specify the exact fire-service connection and pipe-thread standards, engagement and mating parts.
Clapper and seals: Define internal closure arrangement, hinge/seat geometry, sealing interfaces and included subassembly parts.
Mechanical and pressure duty: State wall sections, connection loading, environmental finish and pressure/leak-test criteria.
Material and release: Identify approved casting alloy, delivery condition, batch records and complete-FDC approval responsibility.

Start with your drawing, specified alloy and quantity. Include the required delivery condition and acceptance records so the manufacturing and inspection scope can be reviewed.

Prepare a component enquiry Open component specification guide

Conceptual part illustration

COMPONENT GUIDE

Check valve disc / FDC clapper

Closure element inside a specified check valve or fire department connection

Moves about the drawing-defined hinge or guide to close against the mating seat.

Manufacturing & delivery form
Near-net casting with machining or another approved blank route.

Only assess copper-alloy closures specified by the OEM. A copper-alloy FDC body does not establish a copper-alloy clapper.

Material candidates

UNS C83600 Leaded red brass

A candidate for specified cast valve bodies, covers and connection housings.

An application candidate, not a confirmed equipment bill of materials or available Zhiren grade. Do not default to potable-water use.

UNS C90500 Tin bronze

A candidate for specified pump and valve components.

Review the actual medium, mating materials and manufacturing condition. Material data do not establish component pressure, wear life or pump performance.

Confirm the drawing, actual duty, material standard and manufacturing condition. Material substitutions require customer approval, and supply scope is agreed after component review.

Component RFQ requirements

Closure geometry: Provide disc profile, hinge lug or guide, mass-related design requirements and approved drawing.
Pivot and travel: Specify pin bore, retaining method, opening travel and installation orientation.
Seat interface: Define sealing profile, counterface material, any elastomer interface and surface finish.
Operating acceptance: Allocate impact/closing behaviour, pressure and assembled leakage validation to the specified responsible parties.
Material and traceability: State approved alloy, casting/blank route, machining state and first-article/batch records.

Start with your drawing, specified alloy and quantity. Include the required delivery condition and acceptance records so the manufacturing and inspection scope can be reviewed.

Prepare a component enquiry Open component specification guide

Conceptual part illustration

COMPONENT GUIDE

Fire connection elbow / branch body

Direction-change or branch point in a specified fire-service or test connection

Connects the inlet and outlet passages with drawing-defined orientation and connection geometry.

Manufacturing & delivery form
Complex elbow or branch casting with interface machining.

Different local inlet, outlet and test-connection functions require their own drawings. A cast branch body is not bent copper tube or an entire FDC assembly.

Material candidates

Customer specified Approved material to be defined

No default copper-casting alloy is established for this component.

Obtain the approved metal, seal and coating specifications from the equipment owner before assessing a manufacturing route.

UNS C83600 Leaded red brass

A candidate for specified cast valve bodies, covers and connection housings.

An application candidate, not a confirmed equipment bill of materials or available Zhiren grade. Do not default to potable-water use.

UNS C87600 Cast copper-silicon alloy

A drawing-led candidate for selected connection and valve components.

Not interchangeable with wrought brass grades. The customer must approve the exact alloy, manufacturing form and service.

Confirm the drawing, actual duty, material standard and manufacturing condition. Material substitutions require customer approval, and supply scope is agreed after component review.

Component RFQ requirements

Branch configuration: Provide bores, angles, centre-to-end dimensions, flow direction and approved casting drawing.
Interface standards: Define local hose/pipe connections, sealing arrangement and connection engagement.
Mechanical layout: Identify wall sections, mounting constraints, connection loading and finish requirements.
Pressure acceptance: Specify duty, casting-defect criteria, pressure/leak test and responsible party.
Approved material and form: Confirm alloy, casting versus other route, machining state, revision control and batch records.

Start with your drawing, specified alloy and quantity. Include the required delivery condition and acceptance records so the manufacturing and inspection scope can be reviewed.

Prepare a component enquiry Open component specification guide

Illustrative component locations: Hose connection and outlet valve

Numbered locations identify component-family examples. Illustrations do not define dimensions, material grade or interchangeability.

Conceptual part illustration

COMPONENT GUIDE

Fire hose connection body

Connection between a hose and the specified valve, fitting or pipework

Provides the coupling body and drawing-defined connection or swivel interface.

Manufacturing & delivery form
Cast connection body with thread and seal-face machining; forging routes require separate definition.

Hose threads and NPT/BSP pipe threads are distinct. A complete coupling can contain seals, swivels and other components outside the body scope.

Material candidates

Customer specified Approved material to be defined

No default copper-casting alloy is established for this component.

Obtain the approved metal, seal and coating specifications from the equipment owner before assessing a manufacturing route.

UNS C83600 Leaded red brass

A candidate for specified cast valve bodies, covers and connection housings.

An application candidate, not a confirmed equipment bill of materials or available Zhiren grade. Do not default to potable-water use.

UNS C87600 Cast copper-silicon alloy

A drawing-led candidate for selected connection and valve components.

Not interchangeable with wrought brass grades. The customer must approve the exact alloy, manufacturing form and service.

Confirm the drawing, actual duty, material standard and manufacturing condition. Material substitutions require customer approval, and supply scope is agreed after component review.

Component RFQ requirements

Connection standard: Give the exact hose and pipe interface standards, thread form, direction and mating gauges.
Body geometry: Define bore, wall sections, lug or swivel features and approved drawing revision.
Sealing and assembly: Identify gasket profile, seal face, retention method and included versus excluded parts.
Duty and acceptance: Specify pressure and mechanical requirements, environment, finish and inspection criteria.
Material and approval: Confirm casting or forging route, approved alloy, machining state and first-article/traceability records.

Start with your drawing, specified alloy and quantity. Include the required delivery condition and acceptance records so the manufacturing and inspection scope can be reviewed.

Prepare a component enquiry Open component specification guide

Conceptual part illustration

COMPONENT GUIDE

Fire hose valve body

Standpipe or hose-outlet valve

Contains the specified water passage, seat and stem/bonnet connections for a hose-valve design.

Manufacturing & delivery form
Body casting with connection and valve-seat machining.

Pressure-regulating behaviour of a reducing hose valve requires complete-valve validation. It cannot be guaranteed by the body casting alone.

Material candidates

UNS C83600 Leaded red brass

A candidate for specified cast valve bodies, covers and connection housings.

An application candidate, not a confirmed equipment bill of materials or available Zhiren grade. Do not default to potable-water use.

Customer-specified casting alloy Approved copper alloy

An additional cast-alloy option only where the hose-valve drawing specifies it.

Provide the exact numerical alloy, governing standard and manufacturing condition. A general copper-alloy family does not approve a substitute for the specified valve body.

Confirm the drawing, actual duty, material standard and manufacturing condition. Material substitutions require customer approval, and supply scope is agreed after component review.

Component RFQ requirements

Valve design: Identify straight/angle or pressure-reducing design, approved drawing and flow direction.
Hose and pipe ends: Specify each connection standard, thread details, local mating requirements and dimensions.
Seat and stem region: Define seat datum, bonnet joint, stem alignment and machining allowance.
Pressure and mechanics: Provide design duty, connection loads, body defect and leakage criteria.
Release responsibility: State approved material, machining scope, inspection records and complete-valve performance/qualification owner.

Start with your drawing, specified alloy and quantity. Include the required delivery condition and acceptance records so the manufacturing and inspection scope can be reviewed.

Prepare a component enquiry Open component specification guide

All component guides in this application 5 component entries

Open a guide directly, including parts from the other equipment groups.

Fire department connection bodyComponent guide

Fire hose connection bodyComponent guide

Check valve disc / FDC clapperComponent guide

Fire hose valve bodyComponent guide

Fire connection elbow / branch bodyComponent guide

FURTHER GUIDANCE

Prepare the technical RFQ.

Alloy reference

Review tin-bronze grades.

Compare reference grades and composition in the alloy catalogue. Use the approved component specification to determine the required alloy and service suitability.

Explore the alloy reference

Fire-service & hose connections

Locate the part.Define the requirements.

Select a group. Identify your part.

Prepare the technical RFQ.

Review tin-bronze grades.

Locate the part.
Define the requirements.