API · ASME · DIN · EN standard industrial valves
Pressure Reducing Valves product range
Valves that hold a stable downstream pressure below upstream pressure in steam, water and utility networks.
Last updated: 2026-10
Product family
Direct Acting Pressure Reducing Valves
Direct acting pressure reducing valves balance downstream pressure against a setting spring in a single compact body, so no pilot line or external sensing is…
View specifications →Product family
Pilot Operated Pressure Reducing Valves
Pilot operated pressure reducing valves let downstream pressure act on a large diaphragm through a small pilot valve, so a compact body modulates high flows…
View specifications →Product family
Steam Pressure Reducing Valves
Steam pressure reducing valves drop live or saturated steam from a high-pressure header to the steady lower pressure that equipment, tracing and heating…
View specifications →Product family
Water Pressure Reducing Valves
Water pressure reducing valves hold a fixed downstream pressure in building supply, fire-protection and distribution networks, protecting fixtures and meters…
View specifications →Product family
Pressure Relief / Sustaining Valves
Pressure relief / sustaining valves guard upstream pressure: a normally-closed pilot senses the inlet line, the main valve stays closed while upstream pressure…
View specifications →Product family
Float Control Valves
Float control valves open and close on the level a float pilot reports from the tank, filling reservoirs and break-pressure cisterns to a set line and shutting…
View specifications →Product family
Surge Anticipator Valves
Surge anticipator valves are pilot-controlled diaphragm valves that open on a pressure-rise transient and dump the surge to atmosphere or return line before it…
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 pressure reducing valves?
The published specification for this family lists ASME B16.34 as the design standards. Testing follows API 598.
What sizes and pressure ratings are available for pressure reducing valves?
The published size range is DN20 to DN400, and the published pressure ratings are PN16 to PN64, ANSI Class 150 to Class 2500. Availability of a specific size and rating is confirmed at quotation.
What materials are pressure reducing 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), F11, F22 (ASTM A182), GG25 cast iron (EN 1561), GGG40, GGG50 ductile iron (EN 1563), C95400, C95800 aluminium bronze (ASTM B148), C83600, LG2 bronze (ASTM B62), CW617N, DZR brass (EN 12165). Material availability for a specific size and rating is confirmed at quotation.
What working temperature range do pressure reducing valves cover?
The published working temperature range is -10 to 70°C (direct-acting, water), 0 to 80°C (200X, water). 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 pressure reducing valves support?
The published specification lists Flanged (EN 1092) as the available end connections. The connection for a specific size is confirmed at quotation.
What should a quotation inquiry for pressure reducing 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.