Series 88 Safety Relief Valves

Economical air/gas protection with lift lever

Series 88 is a multiple-purpose safety valve for air and gas protection with an open lift lever. Precision metal-to-metal seating provides reliable performance and excellent reseating. ASME Section VIII certified.

Specifications

  • Body Material: Brass or Stainless Steel
  • Seating: Metal-to-metal, precision lapped
  • Cap Style: Open Lift Lever
  • Max Pressure: 250 psig
  • Temperature Range: -60°F to 406°F
  • Media: Air/Gas ONLY
  • Certifications: ASME VIII, CRN

Manufactured by Aquatrol • Authorized Distributor • American-Made

Series 89 Safety Relief Valves

Closed cap design for non-ASME applications

Series 89 is identical to Series 88 but with a closed cap instead of lift lever. Suitable for applications where ASME lift lever requirements don't apply or where lever protection from environment is needed.

Specifications

  • Body Material: Brass or Stainless Steel
  • Seating: Metal-to-metal, precision lapped
  • Cap Style: Closed Cap
  • Max Pressure: 250 psig
  • Temperature Range: -60°F to 406°F
  • Media: Air/Gas ONLY
  • Certifications: ASME VIII, CRN

Manufactured by Aquatrol • Authorized Distributor • American-Made

Overview

The 88/89 Series are economical, durable safety valves designed specifically for air and inert gas protection. With precision-lapped metal-to-metal seating and disc-guided design, these valves provide quick, accurate reseating after discharge.

Series 88 features an open lift lever; Series 89 has a closed cap for applications where ASME lift lever requirements don’t apply.

Commonly Specified Series 88 Configurations

Select one to review and confirm suitability for your application.

1/4" x 1/2" Air/Gas ASME Section VIII Brass
88A1A1M1K1
Quick Configure
3/8" x 1/2" Air/Gas ASME Section VIII Brass
88B1A1M1K1
Quick Configure
1/2" x 1/2" Air/Gas ASME Section VIII Brass
88C1A1M1K1
Quick Configure
1/2" x 3/4" Air/Gas ASME Section VIII Brass
88D1A1M1K1
Quick Configure
3/4" x 1" Air/Gas ASME Section VIII Brass
88E1A1M1K1
Quick Configure

Lead time varies by configuration. Not sure which to choose? Use the configurator below.

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Capacity Chart - Series 88

Series 88 Capacity Chart

Frequently Asked Questions

Can these valves be used for steam or liquid?

No, the 88/89 Series is certified for air and inert gas only. For steam, see the 560 Series. For liquid, see Series 69.

What body materials are available?

Standard brass and stainless steel bodies are available. Low-lead and 316SS/No-lead configurations require request for quote.

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