Описание
Technical Data Sheet
Outside Screw and Yoke (OS&Y) Gate Valve – Bronze Seated, Handwheel Operated
- 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)
- Операция: Handwheel (Manual)
- Visual Indication: Rising Stem (stem position shows open/closed status)
- Стандарт проектирования: BS 5150 / BS 5163 (Metal-seated variant)
- Ends: Flanged to BS 4504 / EN 1092-2
- Лицом к лицу: BS 2089 or EN 558-1 Series 3 (short pattern)
- Test Standard: BS 6755 / EN 12266-1
- Приложение
- Suitable for: Water, steam, oil, gas, and other non-aggressive fluids where metal-to-metal sealing is required.
- Диапазон температур: -10°C up to +200°C (depending on packing and bronze alloy)
- Номинальное давление: PN10 / PN16 (specify as required)
- Technical Parameters (Typical for DN200 PN16)
|
Параметр
|
Value
|
|
Nominal Diameter
|
DN200 (8″)
|
|
Номинальное давление
|
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
|
Компонент
|
Материал
|
|
Тело
|
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)
|
|
Корень
|
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 (painted or coated)
|
- Функции
- Handwheel Operation: Simple and direct manual control; suitable for most general applications.
- Rising Stem (OS&Y): The stem rises as the valve opens, providing clear visual indication of the valve position (open or closed) without the need for an additional indicator.
- Bronze Seated: Superior corrosion resistance and long service life in demanding fluids.
- Metal-to-Metal Sealing: Suitable for high-temperature fluids and where rubber seals are not compatible.
- In-Line Repairable: Packing can be replaced under pressure when the valve is fully open.
- Dimensions & Weights (Reference Values – DN200 PN16 – Handwheel Operated)
|
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 – Closed (H)
|
approx. 500
|
|
Overall Height – Open (H1)
|
approx. 850
|
|
Handwheel Diameter
|
approx. 400
|
|
Weight
|
approx. 115 kg
|
(For exact dimensions, refer to manufacturer’s certified drawing.)
- Dimensions for Other Common Sizes (PN16) – Handwheel Operation – Reference Only
|
DN
|
L (mm)
|
D (mm)
|
PCD (mm)
|
No. Bolts
|
Bolt Hole Ø
|
H (open) approx.
|
Handwheel Ø (mm)
|
Weight (kg) approx.
|
|
50
|
250
|
165
|
125
|
4
|
19
|
400
|
180
|
18
|
|
80
|
280
|
200
|
160
|
8
|
19
|
550
|
200
|
32
|
|
100
|
300
|
220
|
180
|
8
|
19
|
620
|
250
|
42
|
|
150
|
350
|
285
|
240
|
8
|
23
|
780
|
300
|
75
|
|
200
|
400
|
340
|
295
|
12
|
23
|
850
|
400
|
115
|
|
250
|
450
|
405
|
355
|
12
|
28
|
1000
|
450
|
160
|
|
300
|
500
|
460
|
410
|
12
|
28
|
1150
|
500
|
215
|
|
400
|
600
|
580
|
525
|
16
|
31
|
1450
|
600
|
380
|
*(Face-to-face per EN 558-1 Series 3; flanges per EN 1092-2 PN16. For PN10 dimensions, consult supplier.)*
- Handwheel Operation Details
- Тип: Solid or fabricated malleable/ductile iron handwheel
- Finish: Painted (same as valve body) or epoxy coated
- Operation Torque: Designed for comfortable manual operation by a single person (for sizes up to DN300). For DN350 and above, consult factory regarding operating effort.
- Direction to Close: Typically clockwise (standard) – confirm with manufacturer if required.
- Тестирование
- 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 (not applicable to metal-seated valves).
- Notes & Selection Tips
- Bronze Seated: Ensure the application does not require zero-leakage bubble tight shut-off; metal seated valves have allowable leakage per ISO 5208.
- Cast Iron Limitations: Avoid thermal shock or rapid temperature changes; not suitable for flammable or toxic fluids without specific approval.
- Visual Indication: The rising stem provides direct visual indication of valve position. No separate indicator is fitted.
- Operation Torque: For larger sizes (above DN300), consider whether a gear operator is required for ease of use (handwheel only may require high operating torque).
- Flange Standard: Confirm whether BS 4504 (metric) or BS 10 (inch-based) is required.
- Ordering Information
To ensure correct selection, please specify:
- Размер (DN)
- Номинальное давление (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.
ГАРАНТИЯ:
SAVVY VALVES стремится предоставлять исключительное качество продукции и беспроблемное послепродажное обслуживание. Наши клапаны гарантированно обеспечивают минимальный срок службы 12 месяцев, в течение которых мы бесплатно поставляем все необходимые запасные части и подробные инструкции по техническому обслуживанию. В течение гарантийного срока, если произойдет какой-либо ущерб, не вызванный человеком, мы бесплатно заменим компоненты и предоставим профессиональную техническую поддержку. После истечения срока гарантии клиентам нужно будет оплатить только стоимость запасных частей, при этом продолжая пользоваться скидками на услуги по техническому обслуживанию. Наша цель — помочь клиентам сократить эксплуатационные расходы и повысить эффективность производства за счет надежного качества и комплексной послепродажной поддержки. Будь то технические запросы или потребности в техническом обслуживании, наша команда экспертов оперативно отреагирует, чтобы гарантировать, что ваша клапанная система всегда будет поддерживать оптимальную производительность.