Purple Valves
PRPLZ283

3 Valve Manifold

A three-valve manifold giving two isolation needles plus an equalising valve for differential-pressure transmitter hook-ups.

Size1/4" to 2"Pressure3000 PSI (WOG)BodyThree-valve manifold
Overview

The three-valve manifold provides the two block valves and the single equalise valve needed to isolate, zero and calibrate a differential-pressure transmitter without breaking the impulse lines. Each needle drives a tapered tip into a small seat for fine flow regulation and dependable shut-off, while the equalise port lets a technician balance both sides of the cell before adjustment. Its integral body removes fittings and leak paths, making it a standard fixture on flow, level and DP instrument installations.

Technical Detail

Specifications

Size Range
1/4" to 2"
Pressure Rating
3000 PSI (WOG)
Temperature Range
-46°C to 232°C (-50°F to 450°F)
End Connections
Threaded NPT (ASME B1.20.1)
Body Material
316 Stainless Steel / Carbon Steel (A105)
Ball / Disc / Wedge Material
316 Stainless Steel needle tip
Seat Material
Metal-to-metal (integral)
Stem Material
316 Stainless Steel (A182 F316)
Body Style
Three-valve manifold
Operation
Handwheel
Applications
Isolation, equalising and venting of differential-pressure transmitters and flow elements.
Design Standard
ASME B16.34
Testing Standard
API 598 / MSS SP-99
At a Glance

Key Features

  • Two block needles plus one equalise needle
  • Clean zero and span calibration of DP cells
  • Tapered needle and small seat for fine control
  • Integral body removes fittings and leak paths
  • Non-rotating tips protect the seats

Options

  • Direct or remote mount
  • Vent or test ports
  • Mounting bracket
  • Oxygen-clean preparation

Standards & Certifications

  • ASME B16.34
  • API 598
  • MSS SP-99
Contact

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