DN80-PN40 NRS SS Globe Valve

Size DN80 (3″)
Pressure Rating PN40 (ASME Class 300 equivalent)
Design Type Non-Rising Stem (NRS), bolted bonnet
End Connections [e.g., Raised Face (RF) Flanges to EN 1092-1 / ASME B16.5]
Applicable Media Water, steam, oil, gas, mild corrosive fluids
Temperature Range -29°C to +200°C (depending on seat and packing material)
Flow Direction Under the disc (preferred for tight shut-off)

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TECHNICAL DATA SHEET

Product: DN80 – PN40 NRS Globe Valve
Material: Stainless Steel
نوع الجذع: Non-Rising Stem (NRS)

General Description

This Non-Rising Stem (NRS) globe valve is designed for DN80 (3″) PN40 service. The NRS design features a stem that rotates but does not move vertically, resulting in a compact overall height—ideal for installations with limited overhead space such as underground pipelines, pits, and pump rooms. Constructed from stainless steel, the valve offers excellent corrosion resistance and is suitable for a wide range of industrial applications including water treatment, chemical processing, steam systems, and oil & gas services.

تحديد

المعلمة	Value
مقاس	DN80 (3″)
تصنيف الضغط	PN40 (ASME Class 300 equivalent)
Design Type	Non-Rising Stem (NRS), bolted bonnet
End Connections	[e.g., Raised Face (RF) Flanges to EN 1092-1 / ASME B16.5]
Applicable Media	Water, steam, oil, gas, mild corrosive fluids
نطاق درجة الحرارة	-29°C to +200°C (depending on seat and packing material)
Flow Direction	Under the disc (preferred for tight shut-off)

Material Specification

Item	عنصر	مادة	معيار
1	جسم	Stainless Steel	ASTM A351 CF8M / CF8 / A216 WCB (specify)
2	Bonnet	Stainless Steel	ASTM A351 CF8M / CF8 / A216 WCB
3	قرص	Stainless Steel	ASTM A351 CF8M / CF8
4	ينبع	Stainless Steel	ASTM A479 316 / 304
5	مقعد	Stainless Steel / Stellite	Integral / hardfaced
6	Packing	PTFE / Graphite	—
7	Gasket	Spiral Wound (SS/Graphite) / PTFE	—
8	Bolting	Stainless Steel	ASTM A193 B8 / B8M

الميزات الرئيسية

Non-Rising Stem (NRS): The stem rotates within the bonnet without linear movement, reducing the valve’s overall height. This design is ideal for underground installations, valve pits, and locations with limited headroom.
Stainless Steel Construction: Provides excellent resistance to corrosion, erosion, and high temperatures. Suitable for demanding environments including chemical, marine, and steam applications.
Globe Valve Design: Offers superior throttling capability and positive shut-off compared to gate valves. The flow path creates pressure drop that allows precise flow control.
Bolted Bonnet: Facilitates easy in-line maintenance and repacking without removing the valve from the pipeline.
Integral Seat or Stellite Hardfacing (Optional): Provides extended service life in high-temperature or abrasive conditions.
Anti-Static Design (Optional): Available for applications requiring static charge dissipation.

Dimensional Data (Typical)

المعلمة	Value
Face-to-Face Dimension	[e.g., 280 mm / 11.0″ per EN 558 / ASME B16.10]
Flange Dimensions	EN 1092-1 PN40 / ASME B16.5 Class 300
Overall Height (Closed)	[e.g., 350 mm / 13.8″]
Handwheel Diameter	[e.g., 250 mm / 9.8″]
Weight (Approx.)	[e.g., 35 kg / 77 lbs]

Note: Dimensions vary by manufacturer; please refer to actual product drawings.

Testing & Compliance

معيار التصميم: EN 13709 / ASME B16.34
وجها لوجه: EN 558 Series 1 / ASME B16.10
Flange Connection: EN 1092-1 / ASME B16.5
Pressure Testing: EN 12266 / API 598
Material Certification: EN 10204 Type 3.1

التطبيقات

Water distribution systems (underground or pit installations)
Steam and condensate lines
Chemical processing plants
HVAC and building services
Oil and gas pipelines
Marine and offshore utilities

Ordering Information

Please specify the following when ordering:

المعلمة	Options
مادة الجسم	CF8M (316 SS) / CF8 (304 SS) / WCB (Carbon Steel)
Seat Material	Integral stainless steel / Stellite hardfaced
Packing Material	PTFE / Graphite
End Connections	EN 1092-1 PN40 / ASME B16.5 Class 300 / Other
Actuation (Optional)	Handwheel / Gear operator / Electric actuator / Pneumatic actuator
Special Requirements	NACE MR0175 / Fire safe / Anti-static

ملحوظات

NRS vs. OS&Y: The Non-Rising Stem (NRS) design is recommended where vertical space is constrained. For applications requiring visual stem position indication, an Open Stem & Yoke (OS&Y) design may be preferred.
اتجاه التدفق: For optimal shut-off performance, the valve should be installed with pressure under the disc (flow entering below the seat). Verify direction arrow on the valve body.

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.

منتجات البيع الساخنة

منذ أكثر من 10 سنوات، كنا المورد الرائد للصمامات الصناعية للمشاريع العالمية الكبرى في إمدادات المياه والنفط والغاز وتحلية المياه.