1 brass ball valve

2 brass ball valve

4 brass ball valve

ba450 ball valve

top klapan qaynaqlanır

cryo top klapan

flange ball

os&y ball valve

trunnion ball

v portlu top klapan

1/2″-1500LB DBB Floating Ball Valve RTJ*NPT-F

1/2″-1500LB DBB Floating Ball Valve RTJ*NPT-F

Size 1/2 inch (DN15)
Pressure Class Class 1500 LB (PN250 / 3600 PSI)
Body Material Forged Steel (ASTM A105 / A182 F304/F316 / A350 LF2) User specified
Manufacturing Process Close Die Forged Steel
Design Standard API 6D / EEMUA 182 / ASME B16.34
End Connection Standard RTJ Flanged: ASME B16.5 / Female NPT: ASME B1.20.1
Face to Face Standard Manufacturer’s Standard
Test & Inspection Std. API 598 / EEMUA 182
Fire-Safe Design API 607 / API 6FA (Optional)

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TECHNICAL DATA SHEET

Product Name: 1/2-inch 1500LB DBB Floating Ball Valve
Model/Specification: 1/2″-1500LB-DBB-FLOAT-RTJxNPT
Vana növü: Double Block & Bleed (DBB) Floating Ball Valve
Connection Type: RTJ Flanged (Inlet) x Female NPT (Outlet)

  1. Basic Design Parameters

Parametr

Standard/Specification

Ölçü

1/2 inch (DN15)

Pressure Class

Class 1500 LB (PN250 / 3600 PSI)

Bədən materialı

Forged Steel (ASTM A105 / A182 F304/F316 / A350 LF2) User specified

Manufacturing Process

Close Die Forged Steel

Design Standard

API 6D / EEMUA 182 / ASME B16.34

End Connection Standard

RTJ Flanged: ASME B16.5 / Female NPT: ASME B1.20.1

Face to Face Standard

Manufacturer’s Standard

Test & Inspection Std.

API 598 / EEMUA 182

Fire-Safe Design

API 607 / API 6FA (Optional)

  1. Technical Specifications

Parametr

Details

Vana növü

Double Block & Bleed (DBB) Floating Ball Valve

Body Type

One-Piece Forged Body with Side Entry

DBB Configuration

Two obturators (ball valves) within a single body with bleed/vent system between them

Buruq Tipi

Full Bore / Reduced Bore (Optional)

Ball Type

Floating Ball (pressure-assisted sealing)

Seat Type

Soft Seat (PTFE / RPTFE / PEEK) / Metal Seat (Optional)

Applicable Media

Water, Oil, Gas, Hydrocarbons, Sour Service (NACE)

Temperatur Aralığı

-46°C to +350°C (depending on seat material)

Bleed Port

Needle valve or ball valve between seats for cavity venting

Əməliyyat

Lever Handle (Standard) / Gearbox / Actuator

Antistatik Cihaz

API 6D / API 608 Requirement (Standard)

Blow-Out Proof Stem

Standart

Cavity Pressure Relief

Self-relieving seat design (standard)

  1. DBB Functionality

Feature

Təsvir

Double Isolation

Two independent sealing mechanisms provide isolation from both upstream and downstream pressure

Bleed Capability

Central cavity can be vented to verify seal integrity or relieve pressure

Safety Application

Allows safe maintenance downstream without system shutdown

Space Saving

Replaces multiple valves with a single compact unit

Double Block & Bleed (DBB)

Both seats seal from the same direction (upstream/downstream) with cavity vent capability

  1. Material of Construction (Recommended – Stainless Steel)

Part Name

Material

Standard/Grade

Bədən

Stainless Steel

ASTM A182 F304 / F316

End Connector (RTJ)

Stainless Steel

ASTM A182 F304 / F316

End Connector (NPT-F)

Stainless Steel

ASTM A182 F304 / F316

Top

Stainless Steel (Hardened)

ASTM A182 F304 / F316 (Chrome plated optional)

Kök

Stainless Steel

ASTM A182 F304 / F316 / 17-4PH

Seat Rings

Reinforced PTFE / RPTFE / PEEK

PTFE + 15% Glass Fiber

Body Seals

Spiral Wound / Graphite

Stainless Steel + Graphite

Stem Seals / Packing

PTFE / RPTFE / Graphite

Low emission, fire-safe grade

Thrust Bearings

PTFE + Stainless Steel

Self-lubricating

Antistatik Cihaz

Stainless Steel Ball + Spring

316 SS

Bleed Valve

Stainless Steel Needle Valve

For cavity venting

Handle / Lever

Stainless Steel

With locking device

*For Carbon Steel version (A105/LF2): body/ends to A105/A350 LF2, ball/stem to 13Cr/304.*

  1. Main Dimensions & Connection Details

*Note: Dimensions for 1/2″ Class 1500 DBB Floating Ball Valve with RTJ Flanged x NPT-F Ends. Based on industry standards for small bore DBB valves .*

5.1 Overall Dimensions (Approximate)

Ölçü

Pressure Class

L (mm)

L (in)

H (mm)

H (in)

W (Handle mm)

Weight (kg)

Weight (lbs)

1/2″

1500LB

~150-180

~5.9-7.1

~80-100

~3.1-3.9

~140

~3-5

~6.6-11

Note: DBB design adds length compared to standard ball valves. Consult manufacturer for certified drawings.

5.2 RTJ Flanged End Details (Per ASME B16.5 – Class 1500)

Parametr

1/2″ RTJ Flange

Flange Diameter (OD)

95 mm (3.74 in)

Bolt Circle Diameter (PCD)

66.5 mm (2.62 in)

Number of Bolt Holes

4

Bolt Hole Diameter

16 mm (0.62 in)

Bolt Thread Size

1/2″ UNC

RTJ Groove Number

R-11 or RX-25 (per ASME B16.20)

Hub Diameter

38.1 mm (1.50 in)

5.3 Female NPT End Details (Per ASME B1.20.1)

Parametr

1/2″ NPT-F

Thread Size

1/2″ NPT Female

Thread Type

Tapered Pipe Thread

Thread Length (Min)

13.5 mm (0.53 in)

Depth

Standard NPT thread depth

  1. Pressure-Temperature Rating (ASME B16.34 / Class 1500)

*Material Group: Stainless Steel (A182 F304/F316) with Soft Seats*

Temperature (°C)

Working Pressure (bar)

Working Pressure (psi)

Notes

-46 to -29

250

3625

Low temp range (LF2 body)

-29 to 38

250

3625

Maximum Rating (Class 1500)

50

248

3600

 

100

235

3400

 

150

220

3190

Max for standard PTFE seats

200

205

2970

With RPTFE / PEEK seats

250

190

2755

With PEEK seats

300

175

2538

With PEEK seats

350

160

2320

With Graphite/ Metal seats

*For Carbon Steel (A105/LF2): similar ratings up to 425°C with derating .*

  1. Test Pressure (API 598 / EEMUA 182)

Test Type

Medium

Pressure (bar)

Pressure (psi)

Acceptance Criteria

Shell Test (Hydrostatic)

Water

375

5440

1.5 x 38°C Rating (no visible leakage)

High-Pressure Seat Test

Water

275

3990

1.1 x 38°C Rating (Zero leakage – soft seats)

Low-Pressure Seat Test

Air / N2

5.5 – 7.0

80 – 100

Bubble-tight

DBB Cavity Test

Air / N2

5.5

80

Vent valve integrity check

Bleed Valve Test

Air / N2

5.5

80

Function test

  1. Flow Characteristics (1/2″ – Full Bore)

Parametr

Value

Port Diameter (Full Bore)

~12-15 mm (0.47-0.59 in) (typical)

Flow Coefficient Cv (approx)

~5 – 8 (typical for 1/2″ full bore ball valve)

Flow Characteristic

Quick Opening (On-Off)

Shut-off Class

API 598 / ISO 5208 Rate A (Zero Leakage)

  1. Features & Applications
  • Key Features:
    • Double Block & Bleed (DBB) Function: Provides simultaneous isolation from both upstream and downstream pressure with a central cavity that can be vented to verify seal integrity .
    • Compact Design: Replaces multiple valves (two block valves and a bleed valve) with a single, space-saving unit .
    • Enhanced Safety: Allows safe maintenance of downstream equipment without system shutdown; cavity venting confirms zero leakage before work begins .
    • Mixed End Connections (RTJ x NPT-F): RTJ flanged connection provides metal-to-metal seal for high-pressure integrity; NPT female allows direct instrument or piping connection .
    • Floating Ball Design: Ball floats against downstream seat under pressure, providing tight, leak-proof sealing .
    • Forged Body Construction: Close die forged steel provides superior strength, uniform grain flow, and absence of porosity – ideal for high-pressure Class 1500 service .
    • NACE MR0175 Compliance: Available with materials certified for sour (H₂S) service .
    • Anti-Static Device: Ensures electrical continuity across the valve to prevent spark ignition in flammable services .
    • Blow-out Proof Stem: Stem is retained within the valve body even if the gland is removed under pressure .
    • Fire-Safe Design: Optional API 607 certification ensures sealing integrity in case of fire .
    • Cavity Pressure Relief: Self-relieving seats prevent over-pressure in the ball cavity due to thermal expansion .
    • Lockable Handle: Provides safety lockout capability for maintenance .
  • Main Applications:
    • Oil & Gas Production: Wellhead isolation, flow lines, gathering systems .
    • Refineries & Petrochemical: Instrument root valves, sample points, bleed applications .
    • Chemical Processing: Isolation for hazardous or toxic fluids requiring double containment .
    • Pipeline Systems: Pressure gauge isolation, vent and drain applications .
    • Offshore Platforms: Compact isolation for space-constrained applications .
    • High-Pressure Testing: Test stands and hydraulic systems .
    • Sour Service (NACE): H₂S environments with appropriate material selection .
    • Hydrocarbon Processing: Where double isolation is required by safety codes .
  1. DBB Valve Configuration Diagram

text

    [RTJ FLANGED] =====[ BALL VALVE 1 ]=====[ BLEED ]=====[ BALL VALVE 2 ]=====[ NPT-F ]

         (Inlet)         (Upstream Block)      (Vent)       (Downstream Block)      (Outlet)

  • Position 1 (Closed): Both ball valves closed, bleed valve closed
  • Position 2 (Bleed/Test): Both ball valves closed, bleed valve open – cavity pressure released, confirms seal integrity
  1. Ordering Information

Please specify when ordering:

  1. Valve size: 1/2″ (DN15)
  2. Pressure class: 1500LB
  3. Body material: A105 / LF2 / F304 / F316
  4. End connections: RTJ Flanged x NPT-F
  5. Seat material: PTFE / RPTFE / PEEK / Metal
  6. Bore type: Full Bore / Reduced Bore
  7. Bleed valve type: Needle valve / Ball valve
  8. Operation: Lever handle / Gearbox / Pneumatic actuator
  9. Special requirements: Fire-safe (API 607), NACE MR0175, oxygen cleaning, cryogenic service, etc.
  10. Certifications: Material Test Reports (3.1/3.2), NACE certificates

*Disclaimer: The above data is prepared based on common industry standards (API 6D, ASME B16.34, EEMUA 182, API 598) for DBB floating ball valves with mixed RTJ x NPT ends . The DBB design provides critical double isolation and bleed functionality for high-pressure and hazardous service applications. Specific dimensions, materials, and pressure ratings may vary by manufacturer. The final technical agreement and certified drawings shall prevail.*

ZƏMANƏT:

SAVVY VALVES müstəsna məhsul keyfiyyəti və narahatlıqsız satış sonrası xidmət göstərməyə sadiqdir. Bizim klapanlarımıza minimum 12 ay xidmət müddətinə zəmanət verilir, bu müddət ərzində biz bütün zəruri ehtiyat hissələri və ətraflı texniki xidmət təlimatlarını pulsuz təmin edəcəyik. Zəmanət müddəti ərzində insan tərəfindən törədilməmiş hər hansı zədə baş verərsə, biz komponentləri heç bir ödəniş etmədən əvəz edəcəyik və peşəkar texniki dəstək göstərəcəyik. Zəmanət müddəti bitdikdən sonra müştərilər endirimli texniki xidmətlərdən yararlanmaqla yanaşı, yalnız ehtiyat hissələrinin dəyərini ödəməlidirlər. Məqsədimiz etibarlı keyfiyyət və hərtərəfli satış sonrası dəstək vasitəsilə müştərilərə əməliyyat xərclərini azaltmaq və istehsal səmərəliliyini artırmaqda kömək etməkdir. İstər texniki sorğular, istərsə də texniki xidmət tələbləri üçün mütəxəssis komandamız klapan sisteminizin hər zaman optimal işləməsini təmin etmək üçün dərhal cavab verəcəkdir.

Məhsullarımızla maraqlanırsınızsa, məlumatlarınızı burada buraxmağı seçə bilərsiniz və biz qısa zamanda sizinlə əlaqə saxlayacağıq.