Safety Valves · Parameter selector
Safety valve parameter selector
State the parameters your line fixes — size, pressure class, set pressure, body material, end connection — and the selector narrows the safety-valve subtypes and models we publish specification pages for. A dimension a page does not evidence shows as "confirm at RFQ": it is a gap in the published data, not a limit of the supply range.
Last updated: 2026-10
Filter the published range
Every filter below reads collected specification fields. Leave a filter at "any" when your line does not fix it. A page that does not evidence a dimension you filtered on is listed under Confirm at RFQ — the value is not yet published, it is not a limit of what can be supplied.
Published specification filter. This tool narrows the pages whose collected specifications we publish — it reduces candidates. It is not an engineering selection conclusion: final suitability for your line is confirmed at quotation.
Matching published pages (7)
Subtype
Full Lift Safety Valves
View specifications →Subtype
Low Lift Safety Valves
View specifications →Subtype
Steam Safety Valves
View specifications →Subtype
Balanced Bellows Safety Valves
View specifications →Model
Type 441/442 Balanced Bellows Safety Valves
View specifications →Subtype
Pilot-Operated Safety Valves
View specifications →Model
High-Efficiency Pilot Operated Safety Valves
View specifications →Ordering & documentation
Documents
Ask for the documentation set with the inquiry — typical items (material certificates, test reports to the listed inspection standard, dimensional drawings) are confirmed and supplied with the quotation.
Quotation
Send the medium, temperature, pressure, size and connection for a quotation-ready inquiry. Lead time, MOQ and price are confirmed at quotation, together with the documents to be supplied with the order.
Sample & supply
Supply terms, order quantities and lead time are agreed per order — state the destination country and required schedule with the inquiry.
Storage & shipping
Store valves with seats and seals protected from UV, ozone and deformation, and keep end-face protectors on until installation; storage limits and shipping arrangements for the selected materials are confirmed at quotation.
Knowledge: selection guides
Frequently asked questions
What standards govern the design and testing of safety valves?
The published specification for this family lists API 520, API 521, API 526 as the design standards. Testing follows API 527, ASME PTC 25.3, API 598, DIN 3230.
What sizes and pressure ratings are available for safety valves?
The published size range is 1/2 x 1/2 inch to 12 x 14 inches, depending on model, and the published pressure ratings are PN16 to PN100, Class 150 to Class 600. Availability of a specific size and rating is confirmed at quotation.
What materials are safety valves available in?
The published specification lists body materials: Cast iron, Ductile iron, WCB, SS304, SS316. Material availability for a specific size and rating is confirmed at quotation.
What end connections do safety valves support?
The published specification lists Threaded NPT, Flanged RF or RTJ facing as the available end connections. The connection for a specific size is confirmed at quotation.
What should a quotation inquiry for safety valves include?
The governing standard and class, nominal size, body and seat materials, the service medium with temperature, and the destination — anything missing is confirmed during quotation.
Not covered by the published data?
Send the parameters the selector marked for confirmation — set pressure, temperature, connection — and we will come back with a quotation-ready answer.