Bellows Seal Stop Valve CBT 3945-2002

Bellows Seal Stop Valve CB/T 3945-2002

Certificate: CCS, GL, BV certificate, etc.
Delivery Time: 15 days
Place of Origin: China
Packing Details: Export standard packaging.

Category:

CB/T 3945-2002 Marine Cast Steel Bellows Seal Stop Valve – Hermetic Sealing Solution for Marine Applications

Product Overview
The CB/T 3945-2002 Marine Cast Steel Bellows Seal Type Stop Valve is an advanced sealing solution specifically designed for critical marine applications in shipbuilding, vessel repair, and offshore platforms. Featuring a innovative bellows sealing mechanism that ensures zero leakage performance, this valve provides exceptional reliability in handling various media while meeting stringent marine safety standards. With multiple pressure ratings and comprehensive size options, it represents the pinnacle of marine valve technology for demanding environments.

Key Features & Benefits

✔ Advanced Bellows Seal Technology

  • Hermetic Sealing: Stainless steel bellows provide absolute leakage prevention

  • Double Safety: Secondary sealing system ensures fail-safe operation

  • Zero Emission: Ideal for hazardous or environmentally sensitive applications

✔ Premium Material Construction

  • Body & Cover: High-grade cast steel for superior pressure containment

  • Disc: Premium carbon steel for durability and wear resistance

  • Bellows & Stem: Stainless steel for corrosion resistance and longevity

  • Custom Materials: Available in SS304, SS316L, and other special alloys

✔ Technical Excellence

  • Pressure Ratings: 1.0MPa, 1.6MPa, 2.5MPa options available

  • Size Range: DN15 to DN150 comprehensive coverage

  • Temperature Range: Suitable for various marine service conditions

  • Standards Compliance: Meets CB/T 3945-2002 marine specifications

✔ Dual Configuration Options

  • Type A & Type B: Standard configurations for general applications

  • Type AS & Type BS: Enhanced designs for specialized requirements

  • Flexible Installation: Multiple end connection options available

Technical Specifications

Type A & Type B Configuration:

PN (MPa) DN (mm) L (mm) H (mm) D (mm) D0 (mm) A (mm) B (mm)
1.0 65 290 115 304 270 155 160
1.0 80 310 125 353 312 170 200
1.0 100 350 150 373 324 190 250
1.0 125 400 175 455 395 215 280
1.0 150 480 180 474 402 240 320
1.6 125 400 175 455 395 225 280
1.6 150 480 180 474 402 255 320
2.5 20 150 75 200 186 95 80
2.5 25 160 80 200 186 105 80
2.5 32 180 85 220 200 115 100
2.5 40 200 90 242 218 125 120
2.5 50 230 95 280 250 135 140
2.5 65 290 115 304 270 170 160
2.5 80 310 125 353 312 185 200
2.5 100 350 150 373 324 205 250
2.5 125 400 175 455 395 240 280
2.5 150 480 200 474 402 270 320

Type AS & Type BS Configuration:

PN (MPa) DN (mm) L (mm) H (mm) D (mm) D0 (mm) AS (mm) BS (mm)
1.0 65 290 145 304 270 185 160
1.0 80 310 155 353 312 200 200
1.0 100 350 175 373 324 220 250
1.0 125 400 200 455 395 250 280
1.0 150 480 225 474 402 285 320
1.6 100 350 175 373 324 220 250
1.6 125 400 200 455 395 250 280
1.6 150 480 225 474 402 285 320
2.5 15 130 90 200 186 95 80
2.5 20 150 95 200 186 105 80
2.5 25 160 100 200 186 115 80
2.5 32 180 105 220 200 140 100
2.5 40 200 115 242 218 150 120
2.5 50 230 125 280 250 165 140
2.5 65 290 145 304 270 185 160
2.5 80 310 155 353 312 200 200
2.5 100 350 175 373 324 235 250
2.5 125 400 200 455 395 270 280
2.5 150 480 225 474 402 300 320

The description/sizes may be different with goods, please check with us when order.

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