Description
TECHNICAL DATA SHEET
German Standard Non-Rising Stem Bronze Seated Gate Valve
- BASIC VALVE INFORMATION
|
Item
|
Specification
|
|
Valve Type
|
Bronze Seated Gate Valve (Metal Seated)
|
|
Stem Type
|
Non-Rising Stem (NRS)
|
|
Seat/Sealing Surface
|
Bronze / Aluminum Bronze
|
|
End Connection
|
Flanged, Raised Face (RF)
|
|
Nominal Size
|
DN40 – DN600 (1½” – 24″)
|
|
Pressure Rating
|
PN10 / PN16 / PN25 / PN40
|
|
Body Material
|
Ductile Iron / Cast Iron / Bronze
|
|
Operation
|
Handwheel / T-Key / Bevel Gear / Electric Actuator
|
|
Service Medium
|
Water / Steam / Oil / Gas / Seawater / General Purpose
|
- APPLICABLE CODES & STANDARDS
|
Standard
|
Description
|
|
DIN EN 12288
|
Industrial valves – Copper alloy gate valves
|
|
DIN 3352
|
Gate valves – General requirements
|
|
EN 558-1
|
Face-to-face dimensions – Series 14 (F4) and Series 15 (F5)
|
|
DIN 3202 F4 / F5
|
Face-to-face dimensions for gate valves
|
|
EN 1092-2
|
Flanges and their joints – Circular flanges for pipes, valves, fittings and accessories, Part 2: Cast iron flanges
|
|
ISO 7005-2
|
Metallic flanges – Part 2: Cast iron flanges
|
|
EN 12266 / ISO 5208
|
Industrial valves – Pressure testing of valves
|
|
EN 1074-1/2
|
Valves for water supply – Fitness for purpose requirements
|
|
DIN 3230
|
Valve testing – Pressure test requirements
|
- MATERIALS OF CONSTRUCTION
|
Component
|
Material
|
Standard / Remarks
|
|
Body
|
Ductile Iron (GGG-40/GGG-50)
Gray Iron (GG-25)
Bronze (for all-bronze valves)
|
EN-GJS-400-15 / EN-GJL-250
Tin Bronze / Aluminum Bronze
|
|
Bonnet / Cover
|
Ductile Iron / Gray Iron / Bronze
|
Same as body material
|
|
Gate / Wedge
|
Ductile Iron / Cast Iron
Bronze (for all-bronze valves)
|
With integral bronze seat ring or bronze overlay
|
|
Seat Ring (Body)
|
Bronze / Aluminum Bronze
|
Press-fit or welded-in bronze ring
Sealing surface: Bronze-on-Bronze
|
|
Seat Ring (Gate)
|
Bronze / Aluminum Bronze
|
Bronze seat ring or hardfaced overlay
|
|
Stem
|
Stainless Steel
Aluminum Bronze / Nickel Aluminum Bronze
|
AISI 420 / SS304 / SS316
For seawater service
|
|
Stem Nut / Yoke Nut
|
Bronze / Aluminum Bronze
|
High strength, self-lubricating
|
|
Back Seat / Thrust Washer
|
Bronze / Tin Bronze
|
For repacking under pressure
|
|
Gland Packing
|
Graphite / PTFE / Non-asbestos
|
For stem sealing
|
|
Gasket (Bonnet)
|
Spiral Wound / Graphite + SS
|
Or O-ring type for resilient seal
|
|
Bolting / Nuts
|
Stainless Steel / Zinc Plated Carbon Steel
|
A2 / A4 Stainless Steel
|
|
Handwheel
|
Ductile Iron / Malleable Iron
|
With direction indicator (open/close)
|
|
Coating
|
Epoxy Coating (FBE)
No coating for all-bronze valves
|
Internal & external, RAL 5015 (blue) / RAL 5005, min. 250μm
|
- DESIGN & PERFORMANCE CHARACTERISTICS
|
Parameter
|
Specification
|
|
Pressure Class
|
PN10 / PN16 / PN25 / PN40
|
|
Working Pressure
|
10 bar / 16 bar / 25 bar / 40 bar
|
|
Shell Test Pressure
|
PN10: 15 bar
PN16: 24 bar
PN25: 37.5 bar
PN40: 60 bar
|
|
Seat Test Pressure
|
PN10: 11 bar
PN16: 17.6 bar
PN25: 27.5 bar
PN40: 44 bar
|
|
Design Temperature Range
|
-29°C to +200°C (standard)
-29°C to +425°C (with SS trim)
|
|
Max. Working Temperature
|
200°C continuous service (Bronze seated)
|
|
Leakage Rate
|
Rate A (Zero leakage) per ISO 5208 / EN 12266
|
|
Flow Characteristic
|
Full bore, linear (on-off service only)
|
|
Stem Sealing
|
Back seat design – repackable under pressure
O-ring option available
|
|
Direction of Closing
|
Clockwise to close (handwheel)
|
|
Position Indication
|
Visual indicator on stem / handwheel (open/close)
|
|
Flow Direction
|
Bidirectional
|
- DIMENSIONS & CONNECTIONS
|
Item
|
Dimension (mm)
|
|
Flange Standard
|
EN 1092-2 PN10/PN16/PN25/PN40
|
|
Flange Drilling
|
Per EN 1092-2 – PN10/PN16/PN25/PN40 drilling
|
|
Face-to-Face Length
|
EN 558-1 Series 14 (F4) – Short pattern
EN 558-1 Series 15 (F5) – Long pattern
DIN 3202 F4 / F5
|
|
Flange Face
|
Raised Face (RF) / Flat Face (FF)
|
|
Waterway Diameter
|
Full bore, smooth flow passage
|
|
Stem Diameter
|
Per DIN 3352 minimum requirements
|
|
Handwheel Diameter
|
As per torque requirements
|
- REFERENCE DIMENSIONS (PN16 – Series 14 F4)
|
DN
|
L (F4)
|
D
|
k
|
No. of Holes
|
d2
|
H (approx)
|
Weight (kg)
|
|
40
|
140
|
150
|
110
|
4
|
18
|
___
|
1.89
|
|
50
|
150
|
165
|
125
|
4
|
18
|
___
|
2.5
|
|
65
|
170
|
185
|
145
|
4
|
18
|
___
|
___
|
|
80
|
180
|
200
|
160
|
8
|
18
|
___
|
___
|
|
100
|
190
|
220
|
180
|
8
|
18
|
___
|
4.17
|
|
125
|
200
|
250
|
210
|
8
|
18
|
___
|
5.66
|
|
150
|
210
|
285
|
240
|
8
|
22
|
___
|
6.97
|
|
200
|
230
|
340
|
295
|
8
|
22
|
___
|
___
|
|
250
|
250
|
405
|
355
|
12
|
26
|
___
|
13.29
|
|
300
|
270
|
460
|
410
|
12
|
26
|
___
|
___
|
Note: Dimensions are for reference only. Please consult manufacturer for certified dimensional drawings.
- TESTING & INSPECTION
|
Test
|
Standard / Requirement
|
|
Shell Test
|
EN 12266 / ISO 5208 – 1.5 x Rated Pressure – No visible leakage
|
|
Seat Test (High Pressure)
|
1.1 x Rated Pressure – Rate A leakage
|
|
Seat Test (Low Pressure)
|
5–6 bar – Zero leakage
|
|
Back Seat Test
|
Visual inspection during operation – No leakage
|
|
Material Certification
|
Mill certificates / EN 10204 3.1 (if required)
|
|
Coating Test
|
Holiday detection, thickness measurement (250–400 microns)
|
- SPECIAL REQUIREMENTS & REMARKS
- Bronze Seated Design (Metal-to-Metal)
- Sealing surface: Bronze-on-Bronze – Bronze seat rings on both body and gate.
- Suitable for high temperature applications up to 200°C+.
- Excellent wear resistance and anti-galling properties.
- Ideal for steam, high temperature water, oil, and gas services.
- Non-Rising Stem (NRS)
- Stem does not rise when valve opens/closes.
- Suitable for limited space installations.
- Stem threads isolated from line media – no corrosion or fouling.
- Back Seat Design
- Integral back seat allows repacking under pressure (full open position).
- Ensures safe maintenance without system shutdown.
- Material Options
- Ductile Iron body with Bronze trim – Most common for industrial applications.
- All-Bronze construction – For seawater, marine, and corrosive environments.
- Aluminum Bronze – Enhanced corrosion resistance for aggressive media.
- Bidirectional Sealing
- Bronze seated design provides tight shut-off in both flow directions.
- Applications
- Suitable for: Steam systems, Hot water, Thermal oil, Marine/Seawater, General industrial piping.
- Optional Features
- Bypass arrangement for large sizes.
- Gear operator for larger DN sizes.
- Electric or pneumatic actuation.
- Extended stem for buried service.
- NACE compliance for sour service.
GUATANTEE:
SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.
English