8mm check valve

a check valve

backcheck valve

check valve 8

check valve ppr

co2 check valve

duo check valve

fip check valve

DN15-PN16 Close Die Forged Lift Check Valve

DN15-PN16 Close Die Forged Lift Check Valve

Design Standard DIN 3356
Nominal Size DN15
Pressure Class PN16
Structure Type Lift Type, Bolted Bonnet
Connection Type Welded Flange
Installation Horizontal Piping
Body Material ASTM A105 (Forged Carbon Steel)

Penerangan

German Standard Lift Check Valve Technical Data Sheet

A105 Material DN15 PN16 Welded Flange

  1. General Information

Item

Spesifikasi

Jenis Injap

Lift Check Valve

Design Standard

DIN 3356

Saiz Nominal

DN15

Pressure Class

PN16

Structure Type

Lift Type, Bolted Bonnet

Connection Type

Welded Flange

Installation

Horizontal Piping

Bahan Badan

ASTM A105 (Forged Carbon Steel)

  1. Applicable Standards

Item

Standard Code

Design & Manufacturing

DIN 3356

Face-to-Face / End-to-End

DIN 3202

Flanged Connections

DIN 2543-2546

Test & Inspection

DIN 3230

  1. Main Design Features
  • Operating Principle: Automatically opens and closes the disc by medium flow. When medium flows in the specified direction, disc opens under medium pressure. When backflow occurs, disc closes against seat to prevent reverse flow
  • Disc Structure: Disc moves vertically along the body centerline, reliable operation, suitable for small bore applications
  • Sealing Surface: Wear-resistant, corrosion-resistant, long service life
  • Installation Requirement: Suitable for horizontal pipelines only, disc closes by gravity
  • Binaan Badan: Forged steel body, dense structure, high strength, no casting defects
  1. Main Component Materials

Item

Part Name

bahan

Standard/Remark

1

Badan

ASTM A105

Forged Carbon Steel

2

Bonnet

ASTM A105

Forged Carbon Steel

3

Cakera

2Cr13 / A105+STL

Stainless Steel or Hardfaced

4

tempat duduk

Integral / STL Hardfaced

Machined directly on body or hardfaced

5

Gasket

SS + Flexible Graphite

Spiral Wound

6

Stud Bolt

ASTM A193 Gr.B7

Alloy Steel

7

Hex Nut

ASTM A194 Gr.2H

Heavy Hex Nut

  1. Technical Parameters & Dimensions

5.1 Performance Specifications

Item

Parameter

Nominal Pressure (PN)

1.6 MPa

Shell Test Pressure

2.4 MPa

Seal Test Pressure

1.76 MPa

Julat Suhu

-20℃ ~ 350℃

Applicable Media

Water, Steam, Oil, etc.

5.2 Dimensions (DN15 PN16 Welded Flange)

Dimension

Value

Remark

End-to-End Length (L)

130 mm

Per DIN 3202 standard

Height (H)

Approx. 70 mm

Reference value

Flange Diameter (D)

95 mm

Per DIN 2543 standard

Flange Sealing Face

Raised Face

Suitable for welding connection

Weight

Approx. 2.4 kg

Reference value, may vary by manufacturer

5.3 End Connection Details

  • Welded Flange: Flange dimensions per DIN 2543-2546, Raised Face sealing, flange to be welded to pipe
  1. Test & Inspection (DIN 3230)

Test Item

Test Pressure

Medium

Acceptance Criteria

Shell Test

2.4 MPa

Water

No visible leakage

Seal Test

1.76 MPa

Water or Air

No visible leakage

Test Duration

Per DIN 3230

Hold time conforms to standard

  1. Marking & Supply
  • Flow Direction: Clear flow direction arrow marking on body
  • Valve Marking: Nameplate to include nominal size, pressure class, material, design standard, etc.
  • Cleaning & Protection: Valves internally and externally cleaned, flange faces covered with protectors and coated with rust preventive
  • Documentation: Material certificates, pressure test reports, declaration of conformity provided with shipment

 

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