Flange gate valve 30S41NJ-30LS41NJ

Gate 30S41NJ

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The 30S41NJ steel gate valve is a universal industrial use for water and steam media, equipped with a retractable spindle, a wedge shaped gate valve under 1.6 MPa (RU16) medium pressure, and a 50 mm (DU) diameter pipeline. Up to 1200 millimeters.

production

Wenzhou Gairui Valve Co., Ltd. is one of the largest manufacturers of pipeline accessories in China, and can deliver from Chinese factories without the need for intermediaries.

Technical specifications

• RU16-PN (RU) condition medium pressure: 1.6Mpa

• Pipeline connection type: GOST 12815-80 flange

• Climate performance: U1.

• The ambient temperature (oC) ranges from -40 ° C to+50 ° C

• Working environment temperature: Water or steam (MS) up to+425 ° C

• The shell is manufactured using a 20L high carbon steel casting process.

• Wedge locking element: NJ overlay welding is performed on the wedge disc and sealing surface.

• Sealing level: "A" - GOST R 54808-2011

• Control element: flywheel.

Structure

• Hull; Cast steel.

• Cover.

• Wedge shaped (wedge shaped shutter with stainless steel overlay welding)

• Retractable spindle, oil sealed spindle seal (height H-position "closed", height H1 position "open"). For example, in the figure, the size is 30S41 NJ D50: height is N-350 mm in the "closed" position, N1-405 mm in the "open" position, flange D-160 mm, and length is 180 mm.

• Spindle nut.

• Nut

• Bolt

• Foldable bolts

• ring

• Filler material.

• Flywheel.

• Bearings.

Sign

Steel gate valve 304116 with retractable spindle. Example of marking:

30- represents the valve type in this case - gate ZKL

The main material marking for C-shell parts is steel.

41- Standard number, with the number 5 (541) before the number indicating that a control reducer can be installed, and 9 (941) indicating electrical drive.

Stainless steel - a material used to manufacture wedges or weld wedges and seal through holes.

PN: Work environment pressure

16. Pressure value

DU is the connection diameter of the pipeline.

The diameter is 100 millimeters.