COMPONENT REQUIREMENTS

Valve bonnet

Define the geometry, material, delivery condition and acceptance criteria for the selected application. Manufacturing scope requires review of the approved drawing and operating requirements.

Generated component illustration. It is not a Zhiren product photograph or an engineering drawing; final geometry follows the controlled drawing.

COMPONENT GUIDE

Valve bonnet

Valve-body closure around the stem

Closes the body at the specified stem or packing arrangement.

Manufacturing & delivery form
Bonnet casting with drawing-defined interface machining.

The bonnet is the valve-body closure around the stem; it is not an actuator housing.

Material candidates

UNS C83600 Leaded red brass

A candidate for specified pump, valve and fitting castings.

Candidate for drawing review only. Contains lead; potable-water suitability must not be assumed. Zhiren availability is unconfirmed.

EN CC491K Leaded gunmetal

An EN-designated option for specified pump or valve castings.

Candidate for drawing review only. Confirm the exact standard and service; it is not automatically equivalent to C83600. Zhiren availability is unconfirmed.

UNS C90500 Tin bronze

A candidate for drawing-specified pump, valve and friction components.

Candidate for drawing review only. Confirm medium, loading, manufacturing condition and the governing standard. Zhiren availability is unconfirmed.

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

Body interface: Flange or thread dimensions, bolt pattern, register and sealing face.
Stem & packing: Stem bore, packing cavity, gland interface and machining datums.
Duty & records: Actual medium, pressure, temperature, material records and agreed inspection responsibility.
Material specification: Alloy grade, governing standard and revision, manufacturing condition and any restricted substances.
Order & acceptance: Approved drawing revision, quantity, blank or machined delivery, inspection criteria and required 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

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