DigPig Silencer Hydro Excavation Nozzle

The DigPig Silencer is a rotating hydrovac nozzle built to be rebuilt in the field. A 0° stream rotates inside a 10° cone for focused cutting, and a precision-machined, high-visibility cover protects the rotor longer than molded plastic covers.

Why Operators Run the Silencer

• 0° stream inside a rotating 10° cone
• 303 stainless steel inlet and body
• Reinforced rotor with tungsten carbide tips and seats
• Machined, replaceable high-visibility cover
• Every part is replaceable and rebuildable in the field
• Serial-numbered nozzles
• Handles hot water up to 200°F for frozen ground and hard clay

DigPig Silencer Hydro Excavation Nozzle Specifications

• Inlet pressure: 1,000 PSI minimum, 2,500 PSI recommended, 4,200 PSI maximum
• Inlet: 1/2" FNPT ORB
• Max water temperature: about 200°F
• Weight: 1.6 lb
• Sizes: #4.0, #6.0, #8.0, #10.0, #12.0

Common Uses for the Silencer Hydro Excavation Nozzle

• Pumps from 1,000 to 4,200 PSI, 2,500 PSI recommended
• Hydro excavation with a 0° stream in a 10° cone

How to Choose the Right Hydrovac Nozzle

• 5 nozzle size choices, each with its own part number
• Older Silencers without three tool grooves need the Cover Upgrade for newer covers and the SEAT-Cover Tool

Compare every option in our Hydro Excavation Nozzles collection.

Silencer Hydro Excavation Nozzle Rebuild Kits and Parts

• Silencer Refresh Kits
• Silencer Replacement Seat and O-Ring Kit
• Standard or Heavy Duty Silencer Cover
• Silencer Seat-Cover Tool
• Filter Coins to protect the rotor

DigPig Silencer Hydro Excavation Nozzle FAQ

What is the Silencer made of?

A 303 stainless body with tungsten carbide rotor tips and seats in a Hi-Vis cover, putting a 0° stream into a 10° cone.

Which Silencer parts wear out?

Seats, O-rings and covers. DigPig sells refresh kits by size plus individual seats, O-ring kits, covers, ORB fittings and filter coins.

Not sure which one fits your truck? Call 402-237-1914 (Mon to Fri, 7AM to 4PM) and talk to someone who has run the equipment.

Related Hydro Excavation Nozzles

• Shop all Hydro Excavation Nozzles