Purple Valves
PRPLZ282

2 Valve Manifold

A two-valve instrument manifold combining a block and bleed function for direct-mount static-pressure transmitters.

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

The two-valve manifold integrates an isolation needle and a vent/calibration port into a single compact body, giving instrument technicians a clean way to isolate and bleed a static-pressure transmitter. Each needle seats a hardened tapered tip into a small metal seat for tight, repeatable shut-off and the fine throttling control that pressure-instrument hook-ups demand. Built for direct or remote mounting, it keeps impulse lines short and simplifies commissioning and recalibration of gauges and transmitters.

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
Two-valve manifold
Operation
Handwheel
Applications
Instrument isolation and equalising on differential-pressure transmitters, flow and level instruments.
Design Standard
ASME B16.34
Testing Standard
API 598 / MSS SP-99
At a Glance

Key Features

  • Block-and-bleed function in one compact body
  • Fine throttling via tapered needle and small metal seat
  • Direct or remote transmitter mounting
  • Non-rotating needle tip protects the seat
  • Gland packing rated for instrument service

Options

  • Direct or remote mount
  • Vent or calibration port
  • Panel mounting bracket
  • Oxygen-clean preparation

Standards & Certifications

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