DN8-PN40 Y Pattern Lift Check Valve

Nominal Diameter (DN) DN8
Nominal Pressure (PN) PN40 (40 bar)
Body Configuration Y Pattern
Valve Type Lift Check (Spring-loaded)
Applicable Media Water, oil, gas, non-corrosive or mildly corrosive media
Temperature Range -20°C to +180°C (depending on sealing material)
End Connections Threaded / Socket Weld / Butt Weld (optional)
Flow Direction Unidirectional, arrow marked on body

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Technical Data Sheet – Y Pattern Lift Check Valve

Model: DN8-PN40 Y Pattern Lift Check Valve

Product Description

The Y Pattern Lift Check Valve is a spring-loaded, automatic non-return valve. Its Y-shaped body provides a straight-through flow path with low pressure drop, while the lift-type disc ensures rapid, positive closing when flow reverses. Designed for DN8 and PN40 rating, it is suitable for high-pressure systems in compact piping layouts.

Main Technical Parameters

매개변수	Value
공칭 직경(DN)	DN8
Nominal Pressure (PN)	PN40 (40 bar)
Body Configuration	Y Pattern
밸브 유형	Lift Check (Spring-loaded)
Applicable Media	Water, oil, gas, non-corrosive or mildly corrosive media
온도 범위	-20°C to +180°C (depending on sealing material)
End Connections	Threaded / Socket Weld / Butt Weld (optional)
Flow Direction	Unidirectional, arrow marked on body

Main Component Materials (Standard Configuration)

요소	재료
몸	Stainless Steel 1.4408 / CF8M or Carbon Steel 1.0619 / WCB
Bonnet	Same as body
디스크	Stainless Steel 1.4404 / 304 / 316
Seating Surface	Stellite overlay or stainless steel to stainless steel
봄	Stainless Steel 1.4310 / 304
Gasket	Flexible graphite + stainless steel spiral wound
Threads	ISO 228 / BSPT / NPT

Dimensions & Weight (Reference)

DN	Length L (mm)	Height H (mm)	Thread Size	Weight (kg)
DN8	65	70	1/4″	0.5

Note: Dimensions are for reference and may vary slightly depending on end connection type. Refer to the final drawing for exact values.

Features & Benefits

Y‑Pattern Flow Path – Low flow resistance and high flow capacity.
Lift Check Design – Spring-assisted disc ensures rapid, chatter-free closing upon flow reversal.
High‑Pressure Capability – PN40 rating suitable for steam, high-pressure water, and hydraulic systems.
Compact Installation – Can be installed horizontally or vertically (spring‑loaded version).
안정적인 씰링 – Metal-to-metal or soft seat options available; long service life.

Applicable Standards

Design & Manufacture: API 602 / BS 5352 / Company Standard
Pressure Testing: ISO 5208 / API 598
Threaded Ends: ISO 7-1 / ASME B1.20.1
Socket Weld Ends: ASME B16.11

Typical Applications

Steam and condensate systems
High-pressure gas pipelines
Hydraulic and lubrication systems
Chemical and petrochemical auxiliary lines
Boiler feedwater systems

Important Notes

Ensure the flow direction arrow on the body matches the actual media flow.
For systems with solid particles, install a strainer upstream.
Do not exceed the rated pressure and temperature limits.
Stainless steel body is recommended for corrosive media; carbon steel body for neutral media, oil, and water.

보증:

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