DN800-PN16 Cast Iron Metal Seated Non-Rising Stem Gate Valve

Nominal Size DN800 (32″)
Pressure Rating PN16
End Connection Flanged Ends
Flange Standard DIN EN 1092-2 (PN16, Ductile Iron Flanges, Flat Face / Raised Face)
Face-to-Face Dimension DIN3352 F4 / DIN EN 558 Series 1 (470 mm)
Design & Manufacture Standard DIN3352 (Part 4 / Type F4)
Test & Inspection Standard DIN EN 12266-1

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Beschrijving

TECHNICAL DATASHEET

DN800 PN16 Ductile Iron Non-Rising Stem Gate Valve (DIN3352, Bronze Seated)

General Specifications

Item	Specificatie
Valve Type	Non-Rising Stem Gate Valve (NRS), Bronze Seated
Nominale grootte	DN800 (32″)
Drukclassificatie	PN16
End Connection	Flanged Ends
Flange Standard	DIN EN 1092-2 (PN16, Ductile Iron Flanges, Flat Face / Raised Face)
Face-to-Face Dimension	DIN3352 F4 / DIN EN 558 Series 1 (470 mm)
Design & Manufacture Standard	DIN3352 (Part 4 / Type F4)
Test & Inspection Standard	DIN EN 12266-1

Design Parameters

Item	Unit/Standard	Parameter
Max. Allowable Pressure	bar	16 bar @ ambient temperature
Service Media	–	Water, non-corrosive liquids, gases
Operating Temperature	°C	-10°C to 120°C (depending on trim materials)
Operatie	–	Gearbox (Mandatory for DN800)

Material of Construction (M.O.C.)

Part Name	Material Required	Standard / Grade (Ref.)
1. Body	Ductile Iron (DI)	DIN EN 1563 (EN-GJS-400-15 or GGG40/GGG50)
2. Bonnet	Ductile Iron (DI)	DIN EN 1563 (GGG40/GGG50)
3. Wedge (Gate)	Ductile Iron (DI) with Bronze seat face	DIN EN 1563, Bronze overlay/inlay on seat faces
4. Seat Face	Bronze	Overlay or inlay, e.g., DIN EN 1982 (CuSn5Zn5Pb5 – Red brass / Tin bronze)
5. Stem	Stainless Steel	1.4021 (X20Cr13) / 1.4301 (Rotates only, no axial movement)
6. Stem Nut	Bronze / Aluminum Bronze	Connected to wedge, converts rotation to linear motion
7. Packing	Flexible Graphite / PTFE	–
8. Gasket	Non-asbestos fiber / Graphite	–
9. Bolts/Nuts	Carbon Steel	Zinc plated or black finished
10. Gearbox	Nodulair gietijzer	Gearbox housing: GGG40/GGG50

Main Dimensions (Reference)

Note: Dimensions for reference only. Final dimensions to be verified per manufacturer’s drawing. (Unit: mm)

Beschrijving	Dimension	Remarks
Face-to-Face (L)	470 mm	Per DIN3352 F4 / EN 558 Series 1
Flange Diameter (D)	1025 mm	DIN EN 1092-2 PN16 (DN800)
Bolt Circle Diameter (C)	950 mm	DIN EN 1092-2 PN16
Bolt Holes (n-ød)	24-ø40 mm	24 holes, 40mm bolt hole diameter
Flange Thickness (b)	43 mm	DIN EN 1092-2 PN16
Flange Facing Height (f)	5 mm	Raised face height
Overall Height (H)	Approx. 800 mm	From bottom of body to top of gearbox (Reference, significantly lower than OS&Y)
Approx. Weight	Approx. 1150 kg	Varies by manufacturer

Inspection & Testing (DIN EN 12266-1)

Test Description	Medium	Pressure (bar)	Requirement
Shell (Hydrostatic)	Water	24 (1.5 x PN)	No visible leakage
Seat (High Pressure)	Water	17.6 (1.1 x PN)	Leakage rate ≤ specified rating (Bronze to Bronze seat)
Low Pressure Pneumatic	Air	0.6	Optional, leakage rate ≤ specified rating

Options & Accessories

Item	Options
Stem Upgrade	Stainless Steel 1.4408 (AISI 316) / 17-4PH
Wedge Material	Full Stainless Steel / Nylon Coated Ductile Iron (Bronze seat face maintained)
Bronze Grade	CuSn7Zn4Pb7 / CuSn5Zn5Pb5 (selectable based on media requirements)
Operatie	Gearbox (Standard) / Electric Actuator / Hydraulic Actuator / Extension Stem (for buried service)
Flange Facing	Flat Face (FF) or Raised Face (RF) to match counter flange
Coating	Epoxy Coated (Blue RAL 5005 or Black), min. thickness 250μm, per DIN 30677
By-Pass	By-Pass Assembly (optional for pressure equalization)
Stem Extension	Available for deep burial or floor-standing installations

Remarks:

Bronze Seat Advantage: Bronze-to-Bronze seat trim design offers excellent corrosion resistance, wear resistance, and anti-galling properties, making it ideal for clean water, seawater, and various industrial media.
Ontwerpstandaard: This valve is designed in accordance with DIN3352 F4, suitable for water supply systems and general industrial applications.
Non-Rising Stem Feature: NRS design means the stem does not rise with the wedge; it only rotates. The overall height remains constant regardless of valve position, making it ideal for limited installation spaces or direct burial applications.
Drukclassificatie: PN16 per DIN EN 1092-2 standard. Maximum allowable working pressure is 16 bar at ambient temperature.
Large Size Consideration: DN800 valve is heavy and requires significant operating torque. Gearbox operation is mandatory. Please confirm installation space and lifting arrangement.
Seat Finish: Bronze seat faces are achieved by overlaying (welding) or inserting bronze rings on both body and wedge, ensuring long-term reliable sealing performance.
Applicable Standards: This datasheet is based on DIN3352 and relevant DIN EN standards. Please confirm specific standard revisions and project special requirements before procurement.

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