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2-Piece Closed Die Forged Steel Floating Ball Valve

2-Piece Closed Die Forged Steel Floating Ball Valve

Valve Type Floating Ball Valve
Body Type 2-Piece Split Body Construction
Manufacturing Process Die Forging
Design Standard API 608 / ASME B16.34 / BS 5351
Nominal Size 1/2″ ~ 2″ (DN15 ~ DN50)
Pressure Class Class 150 ~ 2500 LB (PN16 ~ PN420)
Connection Type Flanged (RF/RTJ) / Socket Weld (SW) / Butt Weld (BW) / Threaded (NPT)
Operation Lever Handle / Gear Operator / Pneumatic Actuator

Description

2-Piece Die Forged Steel Floating Ball Valve Technical Data Sheet

  1. General Information

Item

仕様

バルブタイプ

Floating Ball Valve

Body Type

2-Piece Split Body Construction

Manufacturing Process

Die Forging

Design Standard

API 608 / ASME B16.34 / BS 5351

公称サイズ

1/2″ ~ 2″ (DN15 ~ DN50)

Pressure Class

Class 150 ~ 2500 LB (PN16 ~ PN420)

Connection Type

Flanged (RF/RTJ) / Socket Weld (SW) / Butt Weld (BW) / Threaded (NPT)

手術

Lever Handle / Gear Operator / Pneumatic Actuator

  1. Applicable Standards

Item

Standard Code

Design & Manufacturing

API 608, ASME B16.34, BS 5351

Face-to-Face / End-to-End

ASME B16.10

Flanged Connections

ASME B16.5

Butt Weld Ends

ASME B16.25

Socket Weld Ends

ASME B16.11

Threaded Ends

ASME B1.20.1 (NPT)

Test & Inspection

API 598 / API 6D

火災試験

API 607 / API 6FA

  1. Main Design Features
  • ボディ構造: 2-piece split forged body, side-entry design, bolted body connection.
  • Manufacturing Process: Die forged construction, dense grain structure, eliminates casting defects, high strength, suitable for high pressure.
  • Ball Design: Floating ball design, ball supported by two seats, media pressure pushes ball against downstream seat to achieve sealing.
  • 静電気防止装置: Spring-loaded anti-static device between stem and ball ensures static electricity dissipation.
  • Blow-Out Proof Stem: Stem designed with blow-out proof feature for safety.
  • Fire-Safe Design: Designed to meet API 607/6FA fire test requirements.
  • Low Emission Packing: Flexible graphite packing, optional VOC sealing rings to meet ISO 15848-1 fugitive emission requirements.
  • ISO 5211 Mounting Pad: Top flange conforms to ISO 5211 for easy actuator mounting.
  1. Main Component Materials

Item

Part Name

材料

Standard/Remark

1

ASTM A105N

Forged steel, suitable for NACE MR0175

2

End Piece/Bonnet

ASTM A105N

Forged steel

3

ボール

ASTM A182 F304 / F316

Stainless steel

4

ASTM A182 F304 / F316

Stainless steel, blow-out proof design

5

シート

PTFE / RPTFE / PEEK

Soft sealing

6

Seat Gasket

PTFE / Flexible Graphite

 

7

Packing

Flexible Graphite / PTFE

 

8

Gland

ASTM A182 F304

 

9

静電気防止装置

SS304 + Spring

Between stem and ball

10

Body Bolt

ASTM A193 Gr.B7

Alloy steel

11

Body Nut

ASTM A194 Gr.2H

Heavy hex nut

12

Lever Handle

Carbon Steel / Malleable Cast Iron

 
  1. Technical Parameters & Dimensions

5.1 Pressure-Temperature Ratings

  • Material Group: Group 1.1 (Carbon Steel)
  • Temperature Range: -29°C ~ 200°C (PTFE seats) / Up to 500°C (Metal seated)
  • Applicable Media: Water, oil, gas, steam, corrosive media, etc.
  • ボアタイプ: Full bore or reduced bore

5.2 Dimensions (Reference Values, Class 1500 2″ Butt Weld Ends)

Dimension

Value

Remark

End-to-End Length (L)

368 mm (14.5 inch)

Butt weld ends, per ASME B16.10

Height (H)

Approx. 250 mm

Reference only, may vary by manufacturer

Lever Length

Approx. 250 mm

 

Weight

Approx. 25 kg

Reference only

5.3 End Connection Details

  • Socket Weld (SW): Bore diameter and depth per ASME B16.11.
  • 突合せ溶接(BW): Bevel preparation per ASME B16.25.
  • Flanged (RF/RTJ): Flange dimensions, bolt holes and sealing face per ASME B16.5.
  • Threaded (NPT): Per ASME B1.20.1.
  1. Test & Inspection (API 598)

Test Item

Test Pressure (Class 1500)

Medium

Acceptance Criteria

Shell Test

23.4 MPa

Water

No visible leakage

High-Pressure Seat Test

17.0 MPa

Water or Air

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 material, pressure, heat number, fire-safe certification mark (if applicable), etc.
  • Cleaning & Protection: Valves internally and externally cleaned, ends covered with protectors, flange faces coated with rust preventive (if applicable).
  • Documentation: Material certificates, pressure test reports, declaration of conformity, fire-safe certificate (if applicable) provided with shipment.

Note: This technical data sheet is based on standard 2-piece die forged steel floating ball valve design. Actual dimensions and configurations may vary depending on manufacturer and customer requirements. Please select appropriate seat material and pressure class based on actual operating conditions.

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