وصف
Technical Data Sheet
Outside Screw and Yoke (OS&Y) Gate Valve
(Bronze-Seated, Metal-to-Metal Design)
Product Name: OS&Y Solid Wedge Gate Valve (Bronze Seated)
معيار: DIN 3352
مقاس: DN500 (20 inches)
Pressure: PN10
- General Design Features
- يكتب: Outside Screw and Yoke (OS&Y), Solid Wedge, Flanged Ends
- معيار التصميم: DIN 3352
- Face-to-Face Standard: DIN 3202 F4
- Seat Type: Metal-to-Metal (Bronze Seated)
- تصميم الجذع: Rising stem (indicates open/close position)
- عملية: Handwheel Operated (Gearbox is mandatory for DN500 metal-seated valves due to high seating torque)
- طلب: High-temperature fluids, Oils, Steam, Abrasive media, or where rubber is not suitable.
- Applicable Standards
- Design & Manufacturing: DIN 3352 (Part 1 & applicable parts)
- Face-to-Face Dimension: DIN 3202 F4 (Short pattern)
- Flange Drilling: DIN 2501 / EN 1092-2 PN10
- Test & Inspection: EN 12266-1 (formerly DIN 3230)
- Technical Parameters
|
Item
|
Unit
|
المعلمة
|
|
Nominal Diameter
|
mm
|
DN500 (20″)
|
|
Nominal Pressure
|
PN
|
10
|
|
Working Pressure
|
bar
|
10 bar (1.0 MPa)
|
|
Shell Test Pressure
|
bar
|
15 bar (1.5 x PN)
|
|
Seal Test Pressure (Metal Seat)
|
bar
|
11 bar (1.1 x PN)
|
|
Working Temperature
|
℃
|
-10°C ~ +200°C (or higher) *
|
|
Suitable Medium
|
–
|
Water, Steam, Oils, Gases, High-temp fluids
|
*Note: Temperature range depends on the specific bronze alloy and gland packing material.
- Main Component Materials
|
عنصر
|
Specified Material
|
Notes / Alternative
|
|
جسم
|
Ductile Iron (DI)
|
GGG-40 or GGG-50 (EN-JS 1030/1050)
|
|
Wedge / Disc
|
Ductile Iron (DI)
|
Solid wedge design
|
|
Seat Ring (Body)
|
Bronze
|
Corrosion-resistant ring pressed or welded into the body.
|
|
Seat Ring (Wedge)
|
Bronze
|
Both seating surfaces are Bronze for metal-to-metal sealing.
|
|
ينبع
|
Stainless Steel
|
Typically 2Cr13, X20Cr13, or SS304/SS420
|
|
Stem Nut
|
High-strength Brass / Aluminum Bronze
|
Located in the Yoke
|
|
Bonnet
|
Ductile Iron (DI)
|
GGG-40 or GGG-50
|
|
Gland Packing
|
Graphite / PTFE
|
For high-temperature stem sealing
|
|
Handwheel
|
Cast Iron / Malleable Iron
|
Must be fitted with a Gearbox for DN500
|
|
Coating
|
Epoxy Resin (Fusion Bonded)
|
Min thickness > 250 microns, Color Blue RAL5005 (or as specified)
|
- Dimensions & Connection Data (DN500 PN10 Reference)
*Note: Dimensions based on DIN standards. Request certified drawing for exact values. *
|
Dimension Item
|
Value (mm)
|
ملحوظات
|
|
Face-to-Face Length (L)
|
350 mm
|
DIN 3202 F4 (Short pattern)
|
|
Flange Diameter (D)
|
670 mm
|
DIN 2501 / EN 1092-2 PN10
|
|
Bolt Circle Diameter (PCD/K)
|
620 mm
|
DIN 2501 PN10 Standard
|
|
Number of Bolt Holes
|
20
|
Typically 20 holes for DN500 PN10
|
|
Bolt Hole Diameter (d0)
|
26 mm
|
For M24 bolts (approx)
|
|
Overall Height (H) (Open)
|
Approx. 1600 – 2000 mm
|
Height from centerline to top of handwheel (open position). Varies by manufacturer.
|
|
Weight (approx)
|
Approx. 550 – 700 kg
|
Metal-seated valves are heavier. Confirm with supplier.
|
- Critical Notes & Selection Tips
- “Bronze Seated” Definition:
- This data sheet reflects a true Bronze-to-Bronze seal. The wedge has a Bronze ring/face that mates with the Bronze seat in the body.
Torque Requirement (Mandatory Gearbox):
- For a DN500 PN10 metal-seated valve, a gearbox (worm gear) is NOT optional – it is mandatory. The solid wedge and metal-to-metal contact create very high seating and unseating torque. Please confirm the gearbox ratio with the supplier.
Leakage Rate:
- Metal-seated valves cannot achieve “zero leakage” (bubble tight) like resilient-seated valves. They typically conform to ISO 5208 Rate D (0.1x DN mm³/s) or Rate E. Please confirm the acceptable leakage rate for your application.
DIN 3352 Structure:
- DIN 3352 is a multi-part standard. Your valve most likely conforms to DIN 3352 Part 4 or Part 5 for cast iron gate valves, or a specific metal-seated variant.
Action Required:
Please confirm with the manufacturer:
- Gearbox Ratio & Output Torque (Is it suitable for manual operation under max differential pressure?)
- Sealing Leakage Rate (ISO 5208 Rate D or better?)
- Flange drilling details (DIN 2501 PN10) to match your pipeline.
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.