LP Lined Pipe Insert Valve

Brand: Check-All Valve Manufacturing Company

The Lined Pipe Insert (LP) valve is designed to mate between two flanges on most lined pipe systems.

It provides the simplest and most economical way to install a check valve in a lined piping system. No gaskets are required; just spread the flanges, center the valve and bolt the flanges together. 

LP valves are available in fluoropolymer (PTFE/FEP/PFA) and Alloy C-276 to satisfy the most demanding applications. The standard spring material is Alloy C-276. The LP valve can also be used as a low pressure relief valve or vacuum breaker by using the desired spring settings.

Specifications

Approvals & Certifications

  • ISO 9001

Approvals & Certifications

  • CE: PED 97/23/EC

Diameter

  • Orifice: 0.348” to 1.55” (8.63 to 39.37”)

Enclosure, Body Material

  • Alloy C-276 or Hastelloy
  • PTFE

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150# ANSI
  • 1-1/2” (DN 40) - 300# ANSI

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150# ANSI
  • 1” (DN 25) - 300# ANSI

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# ANSI
  • 2” (DN 50) - 300# ANSI

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# ANSI
  • 3” (DN 80) - 300# ANSI

Flow Rate

  • Metal: 2.4 to 45.8 Cv
  • PTFE: 2.4 to 32 Cv

Pipe Size

  • 1” to 3” (25.4 to 76.2 mm)

Pressure Range

  • Non-Shock Pressure-Temperature Rating - psi: 20 to 55 (kPa: 138 to 379, bar: 1.3 to 3.7) at 37.7° C (100° F) for PTFE Body

Seat / Seal Material

  • Seat: AFLAS
  • Seat: Buna-N
  • Seat: EPDM
  • Seat: Kalrez
  • Seat: Metal to Metal
  • Seat: Neoprene
  • Seat: PTFE
  • Seat: Viton

Spring Material

  • 316 Stainless Steel
  • Alloy 400 or Monel
  • Alloy C-276 or Hastelloy
  • Alloy X-750 (Inconel)
  • Fluorinated Ethylene Propylene (FEP)
  • Titanium

Tolerance

  • Spring Tolerance: ± 15 %

show more