Suttner ST-261I Unloader Valve with Injector - 200261580

$120.17 USD

Get exclusive savings and perks. Join the Pros today!
Already have an account? Log in now.

Find out more about our returns policy or warranty policy.

Suttner ST-261I Unloader Valve with Injector 200261580, 3/8" FPT inlet/outlet, 500–3625 PSI, 8 GPM with chemical injection

Suttner ST-261I Unloader Valve with Injector - 200261580

$120.17 USD

$120.17 USD

Description

The Suttner ST-261I Unloader Valve with Injector – 200261580 combines reliable pressure regulation with an integrated chemical injector, offering a compact and efficient solution for pressure washer systems. Designed for pressures from 500 to 3625 PSI, this valve automatically diverts water into bypass when the trigger gun is closed, protecting the pump while also delivering cleaning chemicals when required.

With a maximum flow rate of 8 GPM, the integrated injector supports flow ranges between 3.35 and 5.00 GPM, offering precise detergent application without the need for additional equipment. The 1/4" FPT bypass port and 3/8" FPT inlet/outlet ensure compatibility with standard high-pressure systems.

Built for durability, the ST-261I handles temperatures up to 176°F (80°C) and is ideal for industrial, commercial, and agricultural applications requiring both pressure regulation and chemical injection.

Applications:

  • Industrial and commercial pressure washer systems

  • Detergent and chemical injection with pressure regulation

  • Pump protection during bypass operation

  • Agricultural sanitation and fleet cleaning

Features:

  • Integrated injector with flow rates from 3.35–5.00 GPM

  • Pressure range: 500–3625 PSI

  • Max system flow: 8 GPM

  • Handles temperatures up to 176°F (80°C)

  • 3/8" FPT inlet and outlet, 1/4" FPT bypass port

  • Combines pressure regulation and chemical injection in one compact unit

  • Durable, German-engineered construction for reliability

Suttner valves are trusted worldwide for their precision engineering, durability, and seamless performance in demanding high-pressure systems.

Specs:

Product Type: Unloader Valve with Injector
Category: Valves
Brand: Suttner
Part Number: 200261580
Material: Brass/Steel (typical ST-261I construction)
O-Ring: Nitrile (standard – confirm if needed)
Pressure: 500–3625 PSI
Temperature: Up to 176°F (80°C)
Threading In: 3/8" FPT
Threading Out: 3/8" FPT
Bypass Port: 1/4" FPT
System Flow Rate: Up to 8 GPM
Injector Flow Rate: 3.35–5.00 GPM
Weight: 1.40 lb (0.64 kg)

FAQs

We stock most items in our large distribution facility located in North Carolina. Occasionally, to speed things up, we may drop-ship directly from one of our manufacturing partners.

Order Processing Times:

  • Small Parcel Orders placed before 12:00 PM (Noon ET) are typically processed within 24 business hours.
  • Freight Orders are usually fulfilled within 72 business hours (3 business days).

That said, actual turnaround times can vary depending on order volume. Sometimes we’re faster — sometimes it takes a bit longer.

Need it fast? Please choose an expedited shipping option at checkout. You’re also welcome to contact us — we’ll do our best to work some magic on our end to get your order out ASAP.

You're always welcome to stop by our showroom at 1000 North Horner Blvd, Sanford, NC 27330 to see our systems. We’d love to see you and answer any questions!

We’ve partnered with a variety of lenders to offer flexible payment solutions — including equipment leasing and Buy Now, Pay Later options.

Click here to learn more. It’s fast, easy, and designed to fit your budget!