API · ASME · DIN · EN standard industrial valves
Needle Valves product range
Instrument-size valves with a needle-shaped stem for precise metering and fine flow adjustment.
Last updated: 2026-10
Product family
Needle Gauge Valves
Needle gauge valves isolate pressure instruments from the process, in three-port and block-and-bleed designs so gauges and transmitters can be removed or vented…
View specifications →Product family
Integral Bonnet Needle Valves
Integral bonnet needle valves serve instrument and general-purpose metering duty where frequent packing maintenance is unwelcome: the bonnet is part of the…
View specifications →Product family
Lower Packing Needle Valves
Lower packing needle valves place the stem packing below the stem threads, keeping lubricant on the threads and corrosive or erosive media away from them —…
View specifications →Product family
Rising Plug Gauge Valves
Rising plug gauge valves use a soft-seated, straight-through rising-plug trim instead of a needle stem, so dirty or viscous media can be rodded through and the…
View specifications →Product family
Locked Bonnet Needle Valves
Locked bonnet needle valves clamp the bonnet to the body through a machined metal joint held by a locking ring, so vibration, packing adjustment or an…
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 needle valves?
The published specification for this family lists MSS SP-99, ASME B16.34 as the design standards. Testing follows MSS SP-99 / ISO 5208 hydrostatic shell and seat tests.
What sizes and pressure ratings are available for needle valves?
The published size range is DN3–DN25 (1/8"–1"), and the published pressure ratings are up to 414 bar / 6,000 psi (MAWP stamped on nameplate). Availability of a specific size and rating is confirmed at quotation.
What materials are needle valves available in?
The published specification lists body materials: 316 SS, Alloy 400, Alloy C-276. Material availability for a specific size and rating is confirmed at quotation.
What working temperature range do needle valves cover?
The published working temperature range is −54 °C to +232 °C with PTFE packing, up to +538 °C with graphite. For a medium at the edge of the range, confirm the suitability of the selected seat and body materials at quotation.
What end connections do needle valves support?
The published specification lists NPT or BSP (male/female), Compression tube ends 1/4"–1/2", Socket-weld and butt-weld on request, Panel-mount hardware as the available end connections. The connection for a specific size is confirmed at quotation.
What should a quotation inquiry for needle 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.