API 600 / API 602: Practical Engineering Guide
This API 600 / API 602 resource is organized for a specific task: standards scope mapping. It shows which inputs to collect, how to review them and what evidence should remain in the procurement or maintenance record.
Turn the search question into controlled project inputs
Standards are copyrighted and can change. Verify the official, licensed, project-approved edition before release. For engineers, inspectors and buyers seeking a task-focused valve reference with clear boundaries, the goal is a defensible decision trail rather than an unsupported product claim.
For this workstream, name the responsible discipline, freeze the inputs and agree how the supplier will prove the proposed route.
Convert this subject into measurable requirements, review points and tag-linked evidence instead of leaving it as a brochure description.
For this workstream, name the responsible discipline, freeze the inputs and agree how the supplier will prove the proposed route.
Define what success means for this item, then connect the requirement to a drawing, calculation, inspection or functional result.
Build a requirement-to-evidence matrix for the tag
Name the controlling question and the record that will close it so process, piping, mechanical, controls, quality and procurement work from one basis.
| Decision area | Engineering question | Required evidence |
|---|---|---|
| Function and consequence | Separate isolation, regulation, non-return and protective functions for api 600 / api 602; assign acceptance for each. | Datasheet function, line list and functional requirement approved by the responsible engineer |
| Process envelope | Exact designation and edition | Datasheet with units and minimum, normal, maximum, startup and upset values |
| Mechanical interface | Freeze nominal size, rating route, bore, end details, orientation, loads, access and removable envelope. | Line class, piping arrangement, mating-interface schedule and approved general arrangement |
| Materials and sealing | Resolve corrosion, erosion, temperature, galling, permeation and external-leakage needs at component level. | Approved material list, welding/heat-treatment route and seal qualification evidence |
| Operation and controls | Coordinate operating frequency, speed, fail behavior, local override, signal and hazardous-area requirements. | Approved package datasheet, logic/interface record and witnessed functional results where required |
| Quality evidence | Define the supplier evidence needed to confirm material identity, manufacture, assembly and functional performance. | Controlled procedures, certificates, test reports, NCR closeout and turnover dossier |
Where incomplete requirements become valve failures
These risks should appear in the supplier clarification and inspection plan rather than remain implied in a commercial description.
Close the exposure with project data, a technically reviewed supplier response and an objective inspection or performance criterion.
Do not leave this as an assumption: assign a requirement, acceptance method, responsible reviewer and closeout document.
Record the residual risk after design review and make the relevant drawing, procedure or test result part of the tag dossier.
Technical approval should connect each important risk to construction, material, calculation, qualification and tag-level evidence.
A controlled path from service data to turnover records
Write a functional requirement for api 600 / api 602 that covers normal operation and credible failure states.
Build a controlled application-data set and flag every unknown that could change materials, sizing or operation.
Compare feasible valve families, constructions, materials and actuation routes before selecting a catalog model.
Complete the hydraulic, torque/thrust, rating, corrosion or transient checks that govern this duty.
Cross-check the supplier proposal with the datasheet, line class, project standards and risk register.
Confirm manufacturing and documentation closeout so the delivered valve can be identified, installed and maintained correctly.
Build a comparable and auditable valve inquiry
A disciplined inquiry improves technical comparability, reveals exclusions and reduces changes after purchase order placement.
- Application scope frozen: Engineering resource for API 600 / API 602
- System boundary, operating role and criticality classification
- Exact designation and edition
- Product and service applicability
- Design envelope plus operating, startup, shutdown and upset cases
- Fluid composition, phase, solids, contaminants and cleaning media
- Size, rating, ends, flow direction, orientation and installation envelope
- Component-level materials map including welds, overlay, packing, gaskets and fasteners
- Operator load, cycle frequency, speed, safe position, power/air and control interfaces
- Governing code, product/test standards, owner clauses and approved deviations
- Pressure, leakage, functional, NDE and special test acceptance criteria
- Inspection points, document index, certificates, spares and delivery requirements
Continue the review with product and quality pages
Map gate-valve construction to the correct product-standard scope
This section addresses the decision a visitor is likely trying to complete—not merely the meaning of the page title. Use it to identify required inputs, compare the proposal and specify the record that will prove acceptance.
| Decision | What to do | Evidence to retain |
|---|---|---|
| Scope first | Separate bolted-bonnet steel gate-valve requirements from compact forged-valve requirements; do not cite both as interchangeable labels. | Controlled standards register and valve construction |
| Interfaces | Add the project rating, face-to-face, end-connection and pressure-test documents that sit outside or supplement the product standard. | Datasheet and standards cross-reference matrix |
| Purchaser options | Record every option, supplementary requirement, deviation and required document before quotation comparison. | Clause-by-clause compliance and deviation list |
| Acceptance | Verify the contract edition and require evidence for the actual tag rather than treating a catalog statement as compliance. | Approved drawing, ITP and manufacturing record book |
Primary source route: Check the American Petroleum Institute standards and the purchaser-approved licensed document. Official status can change; the contract edition and project precedence control the order.
How this API 600 / API 602 guide should be used
This page does not claim that a named person, certificate, qualification, installed project or performance result applies to a future order. Product compliance is confirmed only when the accepted quotation, approved drawing, procedures and final manufacturing/test records identify the supplied configuration.
Technical requirements and standards can change. Verify the official source, contract edition, project precedence and purchaser options. See our technical content review and evidence policy, company information, inspection approach or submit a correction or application question.
Questions engineers and buyers ask about API 600 / API 602
What information is needed to evaluate API 600 / API 602?
Start with exact designation and edition, product and service applicability, purchaser options and project supplements, qualification or production evidence. Add the tag function, failure consequence, interfaces, standards, tests and turnover requirements.
Which valve type is best for API 600 / API 602?
The title does not determine one valve type. Isolation, regulation, non-return and protective duties use different constructions; the service envelope, leakage, pressure drop and maintenance plan decide the route.
How should standards be specified?
Confirm the official document and contract edition, then state which requirement it controls. Resolve conflicts through the project precedence and deviation process.
What evidence should a supplier provide?
Evidence should mirror the risk and specification: approved design documents, traceable materials, controlled procedures, calibrated results, closed nonconformances and a searchable final index.
Can Raymon Valve confirm suitability from a short inquiry?
A preliminary route can be discussed, but final selection needs a complete datasheet and application review. Accept performance, certification or material claims only when order-specific evidence supports them.
Send the operating cases, not only a valve name
Provide the tag function, complete service envelope, installation, actuation and evidence scope so the response can address the actual project rather than a generic valve label.
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