3VD Series Manifold Valve

Direct mount 3-valve manifold, instrument mount to pipe connection. Its ‘T’ section body allows reasonable space envelope between the instrument and process lines. The ‘3VD’ Series offers two isolation valves, and one equalising valve.

Fire Safe Design
Bi Directional Flow
Servicing Kits
Severe Temp Rating
NACE Approved
PSV8 Approved
Specifications & Ratings
Supplied with bolt pack and spare seals as standard, this slim, compact 3 valve manifold offers all the features of Alco's high integrity needle valve head design incorporated in one common instrument manifold block. Includes a safe anti-rotational cam locking device. Mounting holes supplied as standard for wall or bracket mounting. Direct process mount and instrument sides are both on 54mm centres to correspond with transmitter connections.
Valve Types
2 x Isolate 1 x Equalise
Pressure Rating
6000 - 10,000 psi
Temperature Rating
-40°C up to 230°C
Bore Size
Connection Size
  • NPT
  • BSPP
  • BSPT
54mm Centres Direct Mount
  • T Bar
  • Handwheel
  • Lockable
Material Options
Materials of manufacture are 316 SS as standard with other material options available.
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
  • Options available upon request.
Bolting Materials
  • 7/16" UNF Bolting
  • Carbon Steel / Stainless Steel
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
Design Specifications
MSS SP 99 and others.
Fire Safe Standards
ISO 10497
Relevant Approvals
Customer specifications can be adhered to.