وصف
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)
- عملية: Bevel Gear Actuator with Handwheel and Mechanical Position Indicator (visual open/close indication)
- معيار التصميم: BS 5150 / BS 5163 (Metal-seated variant)
- Ends: Flanged to BS 4504 / EN 1092-2
- وجها لوجه: BS 2089 or EN 558-1 Series 3 (short pattern)
- Test Standard: BS 6755 / EN 12266-1
- طلب
- 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)
|
المعلمة
|
Value
|
|
Nominal Diameter
|
DN200 (8″)
|
|
تصنيف الضغط
|
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
|
عنصر
|
مادة
|
|
جسم
|
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)
|
|
ينبع
|
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
|
- سمات
- 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
- يكتب: 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
- الاختبار
- 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:
- الحجم (DN)
- تصنيف الضغط (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.
ضمان:
تلتزم شركة سافي فالفز بتقديم منتجات عالية الجودة وخدمة ما بعد البيع مريحة. نضمن لصماماتنا عمر خدمة لا يقل عن ١٢ شهرًا، نوفر خلالها جميع قطع الغيار اللازمة وتعليمات الصيانة المفصلة مجانًا. خلال فترة الضمان، في حال حدوث أي ضرر غير بشري، نستبدل المكونات مجانًا ونقدم دعمًا فنيًا احترافيًا. بعد انتهاء الضمان، يدفع العميل فقط تكلفة قطع الغيار، مع الاستفادة من خدمات الصيانة المخفضة. هدفنا هو مساعدة عملائنا على خفض تكاليف التشغيل وتحسين كفاءة الإنتاج من خلال جودة موثوقة ودعم شامل لما بعد البيع. سواءً للاستفسارات الفنية أو احتياجات الصيانة، سيستجيب فريق خبرائنا على الفور لضمان الحفاظ على الأداء الأمثل لنظام صماماتك في جميع الأوقات.