GP ZK7.0 Flow-Sensitive Unloader – 3500 PSI, 2.1–2.9 GPM | Replaces K7.0

Model: ZK7.0
Category: Pumps → Pump Accessories → Unloaders / Regulators
Type: Flow-Sensitive Unloader Valve – Genuine OEM General Pump

The GP ZK7.0 Flow-Sensitive Unloader is a genuine OEM General Pump pressure unloader engineered with a flow-through, flow-sensitive design to protect pressure washer systems from overpressure and pressure spikes. Unlike spring-loaded unloaders, this unit features no external moving parts or springs, delivering improved reliability, simplified operation, and easier maintenance.

Best Applications

• Single-pump pressure washer systems

• Systems using non-weep guns

• Applications requiring smooth pressure transitions

• Installations prioritizing reliability and low maintenance

Specifications

• Flow Range: 2.1–2.9 GPM

• Maximum Pressure: 3500 PSI

• Maximum Temperature: 165°F

• Inlet Port: 3/8″ BSP-F

• Outlet Port: 3/8″ BSP-M

• Bypass Port: 3/8″ BSP-F

Product Details

Brand: General Pump
OEM: Yes – Genuine General Pump Part
Application: Pressure Regulation / Pump Protection
Unloader Type: Flow-Sensitive / Flow-Through

Key Features

• Genuine OEM General Pump ZK7.0 unloader

• Flow-sensitive, flow-through design

• Eliminates high pressure in all lines during bypass

• Balanced piston for precise pressure adjustment

• Stainless steel and brass internal components

• No external springs or moving parts for added reliability

• Easy to maintain and service

• Ideal for single pump and non-weep gun systems