a gate valve

check valve dn50

fip check valve

gas gate valve

oil check valve

pan check valve

1/2″-800LB Close Die Forged Lift Check Valve

1/2″-800LB Close Die Forged Lift Check Valve

Valve Type Lift Check Valve
Design Standard API 602 / ASME B16.34 / BS 5352
Nominal Size 1/2 inch (DN15)
Pressure Class Class 800 LB (PN130)
Structure Type Lift Type, Bolted Bonnet
Connection Type NPT Threaded (ASME B1.20.1) or Socket Weld (ASME B16.11)
Installation Horizontal Piping
Body Material ASTM A105N (Forged Carbon Steel)

Descrizione

API 602 Forged Steel Lift Check Valve Technical Data Sheet

A105N Material 1/2″ 800LB NPT/Welded Ends

  1. General Information

Item

Specificazione

Tipo di valvola

Lift Check Valve

Design Standard

API 602 / ASME B16.34 / BS 5352

Dimensione nominale

1/2 inch (DN15)

Pressure Class

Class 800 LB (PN130)

Structure Type

Lift Type, Bolted Bonnet

Connection Type

NPT Threaded (ASME B1.20.1) or Socket Weld (ASME B16.11)

Installation

Horizontal Piping

Materiale del corpo

ASTM A105N (Forged Carbon Steel)

  1. Applicable Standards

Item

Standard Code

Design & Manufacturing

API 602, ASME B16.34, BS 5352

Face-to-Face / End-to-End

Manufacturer Standard / ASME B16.10

Socket Weld Ends

ASME B16.11

Threaded Ends

ASME B1.20.1 (NPT)

Test & Inspection

API 598

Pressure-Temperature Rating

ASME B16.34

Valve Marking

MSS SP-25

  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
  • Costruzione del corpo: One-piece die forged body, dense structure, high strength, no casting defects
  • Bonnet Connection: Bolted bonnet design with stainless steel/flexible graphite spiral wound gasket sealing
  • Sealing Surface: Hardfaced with alloy steel or carbide, reasonable material pairing, long service life
  • Installation Requirement: Suitable for horizontal pipelines only, disc closes by gravity
  1. Main Component Materials (A105N Material)

Item

Part Name

Materiale

Standard/Remark

1

Corpo

ASTM A105N

Forged Carbon Steel, suitable for NACE MR0175

2

Bonnet

ASTM A105N

Forged Carbon Steel

3

Disco

ASTM A276 410 / A105N+STL

13Cr Stainless Steel or Hardfaced

4

Posto a sedere

Integral / STL Hardfaced

Machined directly on body or hardfaced

5

Gasket

304 + 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 Pressure-Temperature Ratings

Item

Parametro

Nominal Pressure

Class 800 LB (PN130)

Shell Test Pressure

207 bar (3000 PSI)

Seat Test Pressure

152 bar (2200 PSI)

Low-Pressure Pneumatic Test

5 – 7 bar (Air)

Intervallo di temperatura

-29°C ~ 425°C

Applicable Media

Water, steam, oil, etc.

5.2 Dimensions (1/2″ Class 800)

Dimension

Value

Remark

End-to-End Length (L)

73 mm

Socket Weld/Threaded ends, per Sant Valves data

Height (H)

Approx. 53 mm

Reference value

Socket Weld Bore (A)

10 mm

Min. socket weld depth

Socket Weld Dia (B)

21.8 – 22.2 mm

Socket weld bore range

Threaded End

1/2″ NPT

Per ASME B1.20.1

Weight

Approx. 1.0 kg

Reference value, may vary by manufacturer

5.3 End Connection Details

  • NPT Threaded Ends: Per ASME B1.20.1, 1/2 inch American Standard Taper Pipe Thread
  • Socket Weld Ends (SW): Per ASME B16.11, bore diameter and depth conforming to standard
  • Flow Direction: Clear flow direction arrow marking on body
  1. Test & Inspection (API 598)

Test Item

Test Pressure

Medium

Acceptance Criteria

Shell Test

207 bar (Hydrostatic)

Water

No visible leakage

High-Pressure Seat Test

152 bar (Hydrostatic)

Water

No visible leakage

Low-Pressure Seat Test

5 – 7 bar (Air)

Air

No bubbles leakage

Test Duration

Per API 598

Hold time conforms to standard

  1. Marking & Supply
  • Valve Marking: Per MSS SP-25, nameplate to include nominal size, pressure class, material, heat number, design standard, etc.
  • Flow Direction: Clear flow direction arrow marking on body
  • Cleaning & Protection: Valves internally and externally cleaned, ends covered with protectors, threaded or weld ends coated with rust preventive
  • Documentation: Material certificates, pressure test reports, declaration of conformity provided with shipment

 

GARANZIA:

SAVVY VALVES si impegna a fornire una qualità di prodotto eccezionale e un servizio post-vendita senza pensieri. Le nostre valvole sono garantite per una durata minima di 12 mesi, durante i quali forniremo gratuitamente tutti i pezzi di ricambio necessari e istruzioni di manutenzione dettagliate. Durante il periodo di garanzia, in caso di danni non causati dall'uomo, sostituiremo i componenti gratuitamente e forniremo supporto tecnico professionale. Dopo la scadenza della garanzia, i clienti dovranno pagare solo il costo dei pezzi di ricambio, beneficiando comunque di servizi di manutenzione scontati. Il nostro obiettivo è aiutare i clienti a ridurre i costi operativi e a migliorare l'efficienza produttiva attraverso una qualità affidabile e un supporto post-vendita completo. Che si tratti di richieste tecniche o di esigenze di manutenzione, il nostro team di esperti risponderà tempestivamente per garantire che il vostro sistema di valvole mantenga prestazioni ottimali in ogni momento.

Se sei interessato ai nostri prodotti, puoi scegliere di lasciare qui i tuoi dati e ti contatteremo al più presto.