API · ASME · DIN · EN standard industrial valves
Plunger Valves
Hydraulic control valves with a cylindrical plunger and slotted diffuser for high-differential pressure reduction and cavitation control in water systems.
Last updated: 2026-11
Family specifications
| 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-chromium alloy 625 (ASTM B564) |
|---|---|
| design focus | Diffuser geometry, cavitation control, structural strength under full differential pressure, flow stability, vibration control |
| operation | Manual or actuated |
| operation | Handwheel and gearbox, electric actuator, pneumatic actuator, hydraulic brake-and-lift cylinder |
| cavitation behaviour | Cavitation-free operation by design, and the valve seal sits in the no-flow zone for a long service life. |
| size range | DN150 to DN2200 |
| pressure class | PN10 to PN100, Class 150/300 |
| positioning | A robust, secure control valve for the precise adjustment of pressure and flow rates in water supply. |
| multipurpose duty | A multi-purpose valve: one-piece streamlined body regulates large amounts of water safely and reliably, and the same valve serves control duty across applications. |
| flow control size range | DN150–DN1400 (PN10–PN40) |
| ductile body materials | Ductile iron EN-GJS 400-15 (EN 1563) at DN150; EN-GJS 500-7 from DN200 to DN1400 |
| series15 face to face | EN 558, series 15 (DN + 200 mm) |
| en1092 flange standards | EN 1092-2 |
| seat ring material | Stainless steel 1.4301 (AISI 304), screwed onto the valve body |
| main seal material | Polyurethane rubber (HPU), protected from the water stream |
| lip seal material | Low-friction lip-type polyurethane (HPU) piston seal |
| piston material | Stainless steel 1.4301/1.4306 (AISI 304/304L) DN150–DN900; stainless steel + FBE-coated structural steel DN1000–DN1400 |
| fastener material | Stainless steel A2-70 (EN ISO 3506-1) |
| bearing material | Solid maintenance-free bronze bearings |
| hydraulic test standard | EN 1074-5 |
| fbe coating spec | FBE (fusion-bonded epoxy), inside and outside, RAL 5015 blue, 300 μm |
| gear actuator interface | ISO 5211 |
| ggg40 body materials | Ductile iron EN-JS1030 (GGG-40), GGG50, WCB |
| epoxy coating spec | Epoxy coated inside and outside, minimum 250 μm |
| plunger material | Stainless steel 1.4301 |
| epdm seal material | EPDM |
| bolt material | Stainless steel A4 (EN ISO 3506) |
| water design standard | Manufacturer standard or EN 1074-5 |
| high pressure span | PN10, PN16, PN25, PN40, PN63 (Class 150 LBS / Class 300 LBS) |
| ansi flange standards | EN 1092-2 / ANSI B16.5 / ANSI B16.47A |
| di body size range | DN250–DN1600 (10–64 inch) |
| max working pressure | 16 bar |
| working temp range | 0–85 °C |
| shell test pressure | 1.5 × PN (shell) |
| seat test pressure | 1.1 × PN (seat) |
| suitable medium | Air, water and other media similar to water |
| series3 face to face | BS EN 558-1, basic series 3 |
| bs4505 flange standards | BS EN 1092-2 or BS 4505 |
| component materials | Ductile iron body and crank; stainless steel shaft, seat (304) and sliding sleeve; NBR O-ring; bronze bearing |
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 sizes and pressure ratings are available for plunger valves?
The published size range is DN150 to DN2200, and the published pressure ratings are PN10 to PN100, Class 150/300. Availability of a specific size and rating is confirmed at quotation.
What materials are plunger 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-chromium alloy 625 (ASTM B564). Material availability for a specific size and rating is confirmed at quotation.
What should a quotation inquiry for plunger 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.
Request a quote for plunger valves
Submit the requirement here — a quotation-ready inquiry states the governing standard and class, size, materials, medium, temperature and destination.
What happens to your details is described in our privacy notice.
Get a quotation for Plunger Valves
Send the standard, pressure class and size for a quotation-ready inquiry — answered with documents and terms.