Skip to content
+974 6687 4510+974 3383 5338
Instrumentation

Relief Valves - Series 69

In stock

Series 69 is a high-performance liquid relief valve designed for pressure relief and by-pass in industrial and commercial applications.

Price on request

We quote to your specification, quantity and delivery schedule.

WhatsApp
One business day
Typical response
Checked first
Fit before quote
Sourced to order
Beyond the catalog

Product details

Overview

NON-CODE ADJUSTABLE LIQUID RELIEF VALVE, WATER RELIEF VALVE

Series 69 is a high-performance liquid relief valve designed for pressure relief and by-pass in industrial and commercial applications. Heavy-duty construction with a single-piece bonnet prevents leakage while allowing for easy cleaning. A sealed hex-cap enables simple pressure adjustments.

Features

  • Easily field adjustable via removable hex-cap
  • Metal-to-metal precision lapped seating
  • Back pressure tested for reliability
  • Simple bonnet removal for easy maintenance
  • Stainless steel springs for durability
  • Leak-free single-piece bonnet
  • Cryogenic compatible

Options

  • BSPT and BSPP connections
  • Female inlet
  • Viton-embedded O-ring at hex cap
  • Packed lift lever
  • Wide-range (WR) adjustable (150 psig increments)
  • Stainless steel body and disc
  • Low Lead configurations (potable water relief)
  • PTFE seating
  • Tamper-proof wire seal
  • O2 cleaning
  • Adjustable wheel handle

Series Overview:

Series 69

Calibrated based on flow rate (GPM) versus seat size and set pressure, ensuring precise relief and by-pass control. Standard valves are set to maintain minimum and maximum flow rates within the specified pressure range. See capacity chart for details.

  • Temperature range: -60°F (-51°C) to 406°F (208°C)
    • PTFE option: Lowers temperature to -320°F (-196°C)
    • Stainless steel option: Increases temperature to 425°F (218°C)

Liquid Relief Valve Model Choices

  • Brass/bronze body with stainless steel springs
  • Stainless steel body, disk, and springs with bronze bonnet

Wide Range

Available with an optional wider adjustable range, typically in 150 psig increments. Valves are set at mid-level pressure unless otherwise specified. Flow rates not displayed.

Usages

Ideal for liquid by-pass, regulation, continuous pressure relief, and over-protection in pumping stations, tanks, hydraulics, fluid/piping lines, oil fields, and gas lines where liquid or water relief is required.

Series 55

Compact non-code liquid water relief valves with a maximum pressure of 200 psig, ideal for low-profile applications.

Need a variant, or unsure which model fits?

Send us the operating conditions and we will confirm the specification before you order.

Ask our team

Related products

Safety Valves - Series 140In stockView details

Instrumentation

Safety Valves - Series 140

Our Series 140 is designed for heavy-duty applications where a compact valve is required. It offers excellent seating characteristics with fast-action reseating, minimizing medium loss and improving energy efficiency.

Safety Valves - Series 130In stockView details

Instrumentation

Safety Valves - Series 130

Our Series 130 pressure relief valves provide safety and pressure relief for light to medium capacity applications where a compact valve is required.

Safety Valves - Series 120In stockView details

Instrumentation

Safety Valves - Series 120

Our Series 120 pressure relief valve is designed for safety and pressure relief in light to medium capacity applications, making it ideal where a smaller-sized valve is required.

Safety Valves - Series 560In stockView details

Instrumentation

Safety Valves - Series 560

560 / 570 Series, High-Capacity Industrial Safety Valves The 560 / 570 Series safety valve line delivers high-capacity pressure protection for boilers, piping systems, and pressure vessels.