CV-A Check Type Valve

The Check valve type is offered by Alco on most of the DBB valves. The purpose is to prevent bi-directional flow on valves that require flow in only one direction. The CV-A type is offered on sizes from 10mm bore up to 25mm bore and cover pressures up to ASME class 2500 and API 10,000 psi.

Fire Safe Design
UNI Directional Flow
Bi Directional Flow
Servicing Kits
Severe Temp Rating
NACE Approved
Specifications & Ratings
The valve can be screwed onto the end of a valve, or housed without the valve body, but this does not affect the performance, meaning that the valve is suited to all applications
Valve Types
Double block and bleed
Pressure Rating
Class 2500
Temperature Rating
Up to 200°C
Bore Size
Connection Size
1/2" - 2"
  • NPT
  • BSPT
  • BSPP
  • NPT
  • BSPT
  • BSPP
Material Options
Materials include forged stainless steels, Duplex and Super Duplex. Other exotic materials available upon request.
Material Construction
  • Stainless Steel 316
  • Monel
  • Duplex
  • Super Duplex
  • 6Mo
  • Titanium
  • Hastalloy
  • Zirconium
  • Inconel
  • Incoloy
  • Carbon Steel
  • Ali Bronze
  • Brass
  • Other Materials can be made available upon request
Trim Material
  • All trim materials are made from corrosion resistant materials.
Bolting Materials
Not Applicable
Material Traceability
Testing & Design Standards
All Alco Valves Group products are designed to comply with or exceed internationally recognised products. API 598 approved tested.
Testing Standards
  • API 598
  • API 6A
  • ISO 5208
Design Specifications
B16.34 or API 6A
Fire Safe Standards
  • ISO 10497
  • API 607
Relevant Approvals
Customer specifications can be adhered to.