Account 
1/4" MNPT Brass Pop-Off Valve - 1000-3000 PSI, 6 GPM
The 30961 Cat Pumps Pop-Off Valve is a crucial safety component designed for high-pressure fluid systems. This 1/4" brass pop-off valve functions as a secondary relief valve, providing essential backup protection to the primary pressure regulating device. Its purpose is to assure complete pressure relief, thereby maximizing pump and overall system protection, particularly for equipment like CAT pumps. This valve is commonly used in applications such as the All-In-One Pump Station and the Bay Cleaning Pump Station.
Constructed from durable brass, the valve features special hardened stainless steel and "Acetal" or stainless steel needle valves and seats, which eliminate weeping and ensure reliable performance. Its lightweight and compact design allow for quick and convenient mounting directly into the discharge line. This pop-off valve operates within a system pressure range of 1,000 to 3,000 PSI (70-210 bar), with a maximum relief setting of 3300 psi. It handles a maximum flow of 6.0 GPM (23 lpm) and has a maximum operating temperature of 180°F (82°C) for standard models. Installation should occur in the discharge line before any pressure regulator or unloader, with exit flow returned to a reservoir or drain. The pressure setting is adjustable via an internal screw using a 1/4" allen wrench.
- Product Type: Pop-Off Valve (Secondary Relief Valve)
- Manufacturer Part Number (MPN): 30961
- Material: Brass (Body), Hardened Stainless Steel / Acetal (Seat & Needle Valve)
- Max Flow: 6.0 GPM (23 lpm)
- System Pressure Range: 1,000-3,000 PSI (70-210 bar)
- Maximum Relief Setting: 3300 psi (228 bar)
- Inlet Port Size: 1/4" Male NPT (NPT(M))
- Discharge Barb Size: 3/4"
- Max Operating Temperature: 180°F (82°C) (Standard Models)
- Weight: 2.96 oz (0.84 kg)
- Dimensions: 0.75" x 2.375" (19 x 60 mm)
- Application: All-In-One Pump Station, Bay Cleaning Pump Station, Secondary Safety for CAT pumps
- Spring Color: Blue (indicates 1000-3000 psi range)
- Secondary Pressure Relief: Provides crucial backup protection for pumps and systems, assuring complete pressure relief.
- High Pressure Rating: Handles system pressures from 1,000 to 3,000 PSI.
- Durable Brass Construction: Ensures longevity and resistance to corrosion.
- High Flow Capacity: Supports up to 6.0 GPM.
- Eliminates Weeping: Special hardened stainless steel and Acetal or stainless steel needle valve/seat design prevents leakage.
- Compact & Easy to Mount: Quickly installs directly into the discharge line.
- Adjustable Setting: Internal adjustment screw allows for fine-tuning of the pressure setting.