DN80-PN40-RF Soft Seated Globe Valve

Nominal Size DN80
Pressure Rating PN40 (4.0 MPa / 40 bar)
End Connection Flanged, Raised Face (RF) — EN 1092 1 / ASME B16.5 or equivalent
Body Construction Globe valve, bolted bonnet, soft seated
Disc Type Plug disc or flat disc (depending on design)
Stem Type Rising stem, outside screw and yoke (OS&Y) or non rising stem (optional)
Temperature Range –29°C ~ +150°C (depending on seat/packing materials)
Applicable Media Water, oil, gas, steam, mild corrosive fluids
Flange Standard EN 1092 1 PN40 / ASME B16.5 Class 300 (customer specified)
Face to Face EN 558 Series 1 / ASME B16.10

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Technical Data Sheet

Product: DN80 – PN40 Flanged Soft Seated Globe Valve

Product Description

This flanged globe valve features a soft‑seated design, providing excellent shut‑off performance with minimal leakage. The globe valve configuration offers precise flow regulation and reliable on‑off control. The soft seat ensures bubble‑tight sealing, making it ideal for applications where leakage integrity is critical. Constructed with a rising stem and handwheel operator, this valve is suitable for a wide range of industrial services including water, oil, gas, steam, and mild corrosive media.

Main Technical Parameters

매개변수	Value / Description
공칭 크기	DN80
압력 등급	PN40 (4.0 MPa / 40 bar)
End Connection	Flanged, Raised Face (RF) — EN 1092‑1 / ASME B16.5 or equivalent
차체 구조	Globe valve, bolted bonnet, soft seated
Disc Type	Plug disc or flat disc (depending on design)
Stem Type	Rising stem, outside screw and yoke (OS&Y) or non‑rising stem (optional)
온도 범위	–29°C ~ +150°C (depending on seat/packing materials)
Applicable Media	Water, oil, gas, steam, mild corrosive fluids
Flange Standard	EN 1092‑1 PN40 / ASME B16.5 Class 300 (customer specified)
Face‑to‑Face	EN 558 Series 1 / ASME B16.10

Bill of Materials (Typical)

No.	Part Name	Standard Material	Optional Material
1	몸	WCB (Carbon Steel)	CF8 / CF8M (Stainless Steel), CF3M
2	Bonnet	WCB (Carbon Steel)	CF8 / CF8M, CF3M
3	디스크	A182 F304 / F316	17‑4PH, Monel
4	Seat Ring	A182 F304 / F316 (integral or threaded)	A182 F316L, Stellite® hardfaced (optional)
5	Soft Seat Insert	PTFE (Polytetrafluoroethylene)	RPTFE (Reinforced PTFE), PEEK
6	줄기	A182 F304 / F316	17‑4PH, Monel
7	Packing	PTFE V‑ring set	Flexible graphite
8	Gasket	Spiral wound (SS + graphite)	PTFE, metal ring
9	Handwheel	Cast iron / Carbon steel	Stainless steel
10	Fasteners	A193 B7 (Carbon steel)	A193 B8 (Stainless steel)

주요 특징

Soft Seat Design

PTFE or reinforced PTFE seat insert provides bubble‑tight shut‑off (zero leakage).
Low friction between disc and seat reduces operating torque and extends service life.

Globe Valve Flow Characteristics

Excellent throttling and flow regulation capabilities.
Suitable for frequent operation and precise control.

Rising Stem (OS&Y)

Stem threads are isolated from the media, reducing corrosion and wear.
Visual indication of valve position (open/closed).

Bolted Bonnet Construction

Easy maintenance and access to internal components.
Reliable sealing with spiral wound gasket.

Optional Features

Bellows seal for zero stem leakage.
Gear operator for larger sizes or higher pressures.
Pneumatic or electric actuation for automated control.

Dimensions & Weight (Reference)

Values are typical for EN 1092‑1 PN40 RF flanges. Final dimensions to be confirmed from certified GA drawings.

Item	Dimension (mm)
공칭 크기	DN80
Face‑to‑Face (L)	Approx. 310 mm (EN 558 Series 1)
Flange Outer Diameter (D)	Approx. 200 mm
Flange Thickness (b)	Approx. 24 mm
Bolt Circle Diameter (K)	Approx. 160 mm
Bolt Hole Diameter (d)	Approx. 18 mm
Number of Bolt Holes	8
Overall Height (H) (open)	Approx. 400 – 500 mm (handwheel operated)
Approx. Weight	25 – 35 kg

Design & Manufacturing Standards

기준	설명
설계	BS 1873, API 623, ASME B16.34, EN 13709
Pressure‑Temperature Rating	ASME B16.34, EN 1092‑1
Face‑to‑Face	EN 558 Series 1, ASME B16.10, API 623
Flange Connections	EN 1092‑1 PN40, ASME B16.5 Class 300 (as specified)
Inspection & Testing	API 598, ISO 5208, EN 12266‑1

Testing:

Shell strength test: 1.5 × rated pressure
High‑pressure seat test: 1.1 × rated pressure
Low‑pressure seat test: 0.6 MPa (bubble‑tight for soft seat)

Installation Considerations

Flow Direction

Globe valves are typically installed with flow entering below the disc (flow‑to‑open or flow‑to‑close) depending on design.
Flow direction arrow on the body must be followed to ensure proper sealing and performance.

Orientation

Can be installed in horizontal or vertical pipelines with the stem upright.
Avoid installation with stem inverted to prevent debris accumulation.

Maintenance

Soft seat inserts can be replaced without removing the valve from the pipeline (with bolted bonnet design).

Optional Features

Option	설명
Bellows Seal	Prevents stem leakage, ideal for hazardous or toxic media
Stellite® Hardfaced Seat/Disc	For high‑temperature or abrasive services
Gear Operator	For larger sizes or higher pressure applications
Pneumatic / Electric Actuator	For automated control systems
NACE Compliance	MR0175 / MR0103 for sour service
Low‑Emission Packing	ISO 15848 / API 624 certified

Ordering Information

Please specify the following when placing an order:

Size, pressure rating, and end connection
Media and operating temperature — determines seat and packing materials
Body and trim materials — carbon steel, stainless steel, etc.
Seat type — PTFE soft seat (standard) or metal seat (optional)
Stem type — rising stem (OS&Y) or non‑rising stem
Flange standard — EN 1092‑1 / ASME B16.5
Actuation type — handwheel, gear, pneumatic, electric
Special requirements — bellows seal, NACE, low emission, material test reports (EN 10204 3.1), etc.

보증:

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