API · ASME · DIN · EN standard industrial valves
Air Release Valves product range
Hydraulic valves venting trapped air at pipeline high points and admitting air during draining to prevent vacuum and surge.
Last updated: 2026-10
Product family
Single Orifice Air Valves
Single orifice air valves vent accumulated air from liquid lines through one small orifice: a stainless float drops as air gathers in the chamber, opening the…
View specifications →Product family
Double Orifice Air Valves
Double orifice air valves pair a large-orifice stage with a small-orifice stage in one body: the large stage discharge bulk air while pipelines fill and admit…
View specifications →Product family
Combination Air Release Valves
Combination air release valves pair an air/vacuum function with a continuous air-release function in one assembly: they exhaust large air volumes at pipeline…
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.
Frequently asked questions
What standards govern the design and testing of air release valves?
The published specification for this family lists AWWA C512 as the design standards.
What sizes and pressure ratings are available for air release valves?
The published size range is 1" to 20" (single body 1"-8", dual body 10"-20"), and the published pressure ratings are PN10, PN16, Class 125. Availability of a specific size and rating is confirmed at quotation.
What materials are air release valves available in?
The published specification lists body materials: WCB (ASTM A216), CF8, CF8M (ASTM A351), F316, F316L (ASTM A182), F51/2205 duplex (ASTM A182), F53, F55/2507 super duplex (ASTM A182), C95400, C95800 aluminium bronze (ASTM B148), nickel-copper alloy 400, nickel-chromium alloy 625 (ASTM B564). Material availability for a specific size and rating is confirmed at quotation.
What working temperature range do air release valves cover?
The published working temperature range is -20 to 180°C (KXC single release, water/oil/gas). For a medium at the edge of the range, confirm the suitability of the selected seat and body materials at quotation.
What should a quotation inquiry for air release 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.