1 gate valve

12 gate valve

2 gate valve

gate valve flow

valvole a saracinesca

globe valve flow

1/2″-300LB Close Die Forged Stainless Steel Globe Valve

1/2″-300LB Close Die Forged Stainless Steel Globe Valve

Design Standard API 602 / ASME B16.34 / BS 5352
Nominal Size 1/2 inch (DN15)
Pressure Class Class 300 LB (PN50)
Bonnet Type OS&Y (Outside Screw and Yoke), Bolted Bonnet
Connection Type Butt Weld Ends (BW)
Operation Handwheel
Body Material ASTM A182 F304 (Forged Austenitic Stainless Steel)

Descrizione

Forged Steel Globe Valve Technical Data Sheet (API 602)

F304 Material 1/2″ 300LB Butt Weld Ends

  1. General Information

Item

Specificazione

Tipo di valvola

Forged Steel Globe Valve

Design Standard

API 602 / ASME B16.34 / BS 5352

Dimensione nominale

1/2 inch (DN15)

Pressure Class

Class 300 LB (PN50)

Bonnet Type

OS&Y (Outside Screw and Yoke), Bolted Bonnet

Connection Type

Butt Weld Ends (BW)

Operazione

Handwheel

Materiale del corpo

ASTM A182 F304 (Forged Austenitic Stainless Steel)

  1. Applicable Standards

Item

Standard Code

Design & Manufacturing

API 602, ASME B16.34, BS 5352

Face-to-Face / End-to-End

ASME B16.10 / Manufacturer Standard

Butt Weld Ends

ASME B16.25

Test & Inspection

API 598

Pressure-Temperature Rating

ASME B16.34

Valve Marking

MSS SP-25

  1. Main Design Features
  • Costruzione del corpo: One-piece die forged body, dense structure, high strength, no casting defects, excellent corrosion resistance
  • Bonnet Connection: Bolted bonnet design with stainless steel/flexible graphite spiral wound gasket sealing
  • Disc Design: Renewable disc type, hardfaced seating surface
  • Stem Design: Backseat feature allows packing replacement under pressure when valve is fully open
  • Operating Characteristics: Disc moves linearly along seat centerline, short stroke, reliable shut-off
  • Seat Design: Metal-to-metal seating for durability
  • Packing: Flexible graphite packing, low emission design
  1. Main Component Materials (F304 Material)

Item

Part Name

Materiale

Standard/Remark

1

Corpo

ASTM A182 F304

Forged Austenitic Stainless Steel

2

Bonnet

ASTM A182 F304

Forged Austenitic Stainless Steel

3

Disco

ASTM A182 F304 + STL

Hardfaced with Stellite

4

Posto a sedere

Integral / STL Hardfaced

Machined directly on body or hardfaced

5

Stelo

ASTM A182 F304

Stainless Steel

6

Gasket

304 + Flexible Graphite

Spiral Wound

7

Packing

Flexible Graphite

Low emission design

8

Gland Bushing

ASTM A182 F304

Stainless Steel

9

Gland Flange

ASTM A182 F304

Stainless Steel

10

Bonnet Bolt

ASTM A193 B8

Stainless Steel

11

Bonnet Nut

ASTM A194 8

Stainless Steel

12

Handwheel

ASTM A197

Malleable Cast Iron

  1. Technical Parameters & Dimensions

5.1 Pressure-Temperature Ratings

Item

Parametro

Nominal Pressure

Class 300 LB (PN50)

Shell Test Pressure

7.7 MPa (Hydrostatic) [API 598]

High-Pressure Seat Test Pressure

5.7 MPa (Hydrostatic) [API 598]

Low-Pressure Pneumatic Test Pressure

0.5 – 0.7 MPa (Air) [API 598]

Intervallo di temperatura

-29°C ~ 425°C (derating at higher temps)

Applicable Media

Water, steam, oil, corrosive media

5.2 Dimensions (1/2″ Class 300 Butt Weld Ends)

Dimension

Value

Remark

End-to-End Length (L)

165 mm

Butt Weld Ends, typical API 602 value

Height (H-OPEN)

Approx. 196 mm

Fully open position, reference

Handwheel Diameter (W)

100 mm

Reference

Butt Weld OD

21.3 mm

Matching 1/2″ Sch40/80 pipe

Butt Weld Wall Thickness (t)

Per ASME B16.25

Bevel preparation per standard

Weight

Approx. 2.5 kg

Reference, may vary by manufacturer

5.3 End Connection Details

  • Butt Weld Ends (BW): Bevel preparation and dimensions per ASME B16.25, suitable for welding to pipe
  1. Test & Inspection (API 598)

Test Item

Test Pressure

Medium

Acceptance Criteria

Shell Test

7.7 MPa

Water

No visible leakage

High-Pressure Seat Test

5.7 MPa

Water

No visible leakage

Low-Pressure Seat Test

0.5 – 0.7 MPa

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: Flow direction arrow marking on body
  • Cleaning & Protection: Valves internally and externally cleaned, ends covered with protectors
  • 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.

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