Description
Technical Data Sheet
Outside Screw and Yoke (OS&Y) Gate Valve – Bronze Seated, Gear Operated with Position Indicator
- General Description
- Product: Flanged End, Outside Screw and Yoke (OS&Y), Solid Wedge Gate Valve
- Seat Type: Bronze-to-Bronze Metal Seated (Metal-to-Metal)
- Operation: Bevel Gear Actuator with Handwheel and Mechanical Position Indicator (visual open/close indication)
- Design Standard: BS 5150 / BS 5163 (Metal-seated variant)
- Ends: Flanged to BS 4504 / EN 1092-2
- Face-to-Face: BS 2089 or EN 558-1 Series 3 (short pattern)
- Test Standard: BS 6755 / EN 12266-1
- Application
- Suitable for: Water, steam, oil, gas, and other non-aggressive fluids where metal-to-metal sealing is required.
- Temperature Range: -10°C up to +200°C (depending on packing and bronze alloy)
- Pressure Rating: PN10 / PN16 (specify as required)
- Technical Parameters (Typical for DN200 PN16)
|
Parameter
|
Value
|
|
Nominal Diameter
|
DN200 (8″)
|
|
Pressure Rating
|
PN16 (16 bar)
|
|
Shell Test Pressure
|
24 bar
|
|
Seal Test Pressure
|
17.6 bar (allowable leakage per ISO 5208 Rate D)
|
|
Working Pressure (max)
|
16 bar at 120°C
|
|
Operating Temperature
|
-10°C to +200°C
|
|
Flange Drilling
|
BS 4504 / EN 1092-2 PN16
|
|
Face-to-Face Length
|
400 mm (EN 558-1 Series 3)
|
(For other sizes, refer to Section 7.)
- Materials of Construction
|
Component
|
Material
|
|
Body
|
Cast Iron (EN-GJL-250 / BS 1452 Grade 250)
|
|
Bonnet
|
Cast Iron (EN-GJL-250)
|
|
Wedge (Gate)
|
Cast Iron with Bronze Seat Ring
|
|
Body Seat Ring
|
Bronze (machined and pressed / welded into body)
|
|
Stem
|
Stainless Steel (e.g., AISI 410 / 420 / 304)
|
|
Stem Nut
|
High Tensile Brass / Aluminium Bronze
|
|
Gland Packing
|
Graphite / PTFE (high temperature)
|
|
Gasket
|
Compressed Fibre or Graphite (between body and bonnet)
|
|
Bolting / Nuts
|
Carbon Steel / Stainless Steel (as required)
|
|
Handwheel
|
Malleable / Ductile Iron
|
|
Gearbox
|
Worm Gear Type with enclosed housing
|
|
Position Indicator
|
Mechanical flag-type indicator mounted on gearbox
|
- Features
- Gear Operation: Smooth and low torque operation even under high pressure; suitable for large valves and frequent use.
- Position Indicator: Clearly shows valve open/closed status; ideal for buried or inaccessible installations.
- Bronze Seated: Superior corrosion resistance and long service life in demanding fluids.
- Rising Stem: Visual confirmation of stem position (OS&Y design).
- In-Line Repairable: Packing can be replaced under pressure when valve fully open.
- Dimensions & Weights (Reference Values – DN200 PN16)
|
Dimension
|
Value (mm)
|
|
Face-to-Face (L)
|
400
|
|
Flange Diameter (D)
|
340
|
|
Bolt Circle Diameter (PCD)
|
295
|
|
Number of Bolt Holes
|
12
|
|
Bolt Hole Diameter
|
22
|
|
Stem Diameter
|
approx. 32
|
|
Overall Height – Open (H)
|
approx. 850
|
|
Handwheel / Gearbox Height
|
approx. 400 (above centreline)
|
|
Weight
|
approx. 120 kg
|
(For exact dimensions, refer to manufacturer’s drawing.)
- Dimensions for Other Common Sizes (PN16) – Reference Only
|
DN
|
L (mm)
|
D (mm)
|
PCD (mm)
|
No. Bolts
|
Bolt Hole Ø
|
H (open) approx.
|
Weight (kg) approx.
|
|
50
|
250
|
165
|
125
|
4
|
19
|
400
|
20
|
|
80
|
280
|
200
|
160
|
8
|
19
|
550
|
35
|
|
100
|
300
|
220
|
180
|
8
|
19
|
620
|
45
|
|
150
|
350
|
285
|
240
|
8
|
23
|
780
|
80
|
|
200
|
400
|
340
|
295
|
12
|
23
|
850
|
120
|
|
250
|
450
|
405
|
355
|
12
|
28
|
1000
|
170
|
|
300
|
500
|
460
|
410
|
12
|
28
|
1150
|
230
|
|
400
|
600
|
580
|
525
|
16
|
31
|
1450
|
400
|
*(Face-to-face per EN 558-1 Series 3; flanges per EN 1092-2 PN16. For PN10 dimensions, consult supplier.)*
- Gear Operator & Position Indicator Details
- Type: Fully enclosed worm gear unit
- Ratio: Typically 20:1 to 40:1 (depending on size)
- Input Torque: Designed for comfortable manual operation
- Indicator: 0–90° movement flag type; clearly marked “OPEN” / “SHUT” or with local visual disc/flag
- Housing: Coated cast iron or aluminium, weatherproof
- Testing
- Shell Test: 1.5 x PN (24 bar for PN16) for duration per EN 12266-1
- Seat Test: 1.1 x PN (17.6 bar for PN16) with allowable leakage per Rate D (or tighter if specified)
- Optional: High-pressure seat test, low-pressure air test, or zero-leakage resilient seat tests available on request.
- Notes & Selection Tips
- Bronze Seated: Ensure the application does not require zero-leakage bubble tight shut-off; metal seated valves have allowable leakage.
- Cast Iron Limitations: Avoid thermal shock or rapid temperature changes; not suitable for flammable or toxic fluids without specific approval.
- Gearbox: Standard with handwheel; optional chain wheel or electric actuator available.
- Position Indicator: Provided as standard with gear operator; if handwheel only, indicator may be optional.
- Flange Standard: Confirm whether BS 4504 (metric) or BS 10 (inch-based) is required.
- Ordering Information
To ensure correct selection, please specify:
- Size (DN)
- Pressure Rating (PN)
- Flange Standard (e.g., BS 4504 PN16)
- End Use / Medium
- Any special test requirements
This data sheet is a guideline; always refer to the manufacturer’s certified drawings for exact dimensions and ratings.
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.
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