Product Name: Check Valve Body, P2040 (Part No. 300732)

Description:
This component is a check valve body, specifically designed for the P2040 waterjet intensifier pump model . It is a precision-machined stainless steel housing that serves as the structural base of the check valve assembly, which controls the one-way flow of water entering the high-pressure cylinder from the low-pressure supply and directs pressurized water toward the high-pressure outlet line .

This check valve body is manufactured by AccuStream (a Hypertherm brand) and is produced in the USA under OEM number 1-11999 . It is rated for continuous operation at 60,000 PSI (approximately 4,137 bar) and is compatible with P2040 and other standard waterjet intensifier pump models.

Applications:

• Serves as the main housing for the check valve assembly in P2040 waterjet intensifier pumps

• Provides the cavity that contains the valve poppet, seat, spring, and sealing components

• Mounts between the low-pressure water supply and the high-pressure cylinder 

• Two check valve bodies are required per complete intensifier pump assembly (inlet and outlet sides)

• Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI and above

Features:

• Stainless Steel Construction: Provides excellent corrosion resistance and structural integrity under extreme pressure cycling 

• Precision-Machined Internal Passages: Contains internal bores that direct water from low-pressure supply into the high-pressure cylinder

• OEM Quality: Manufactured by AccuStream (brand of Hypertherm) to original equipment specifications 

• Interchangeable Design: Compatible with standard check valve repair kits and components

• P2040 Specific: Designed specifically for the P2040 intensifier pump model 

Maintenance:

Component Integration:

• This check valve body is used in conjunction with the check valve repair kit (P/N 303401) which contains the poppet, seat, spring, and sealing elements for a complete overhaul

• In a complete pump assembly, the check valve body  connects to the high-pressure cylinder via the high-pressure end cap and receives low-pressure water through the inlet port 

• High-pressure water flows from the check valve body into the high-pressure tube through a clamped connection secured by a compression nut 

Failure Diagnosis:

• External Water Leakage: Water weeping from the weep slot or body joints indicates internal seal failure within the check valve assembly 

• Pressure Drop: Inability to maintain rated cutting pressure suggests worn internal components (poppet, seat) requiring replacement

• Temperature Variation: If one cylinder runs warmer than the other, a leak is likely occurring on the warmer side 

• Cracked Body: Visible cracks or deformation of the stainless steel body require immediate replacement

• Scheduled Service: KMT recommends servicing check valves every 1,000-1,500 hours as part of preventive maintenance 

Inspection and Replacement Procedures:

• Full Depressurization: Always fully depressurize the waterjet system, observe Lockout/Tagout procedures, and ensure all pressure is relieved from hydraulic and high-pressure circuits before servicing 

• Proper Tools: Use two appropriately sized wrenches (recommended 1-3/16") to remove the gland nut and access internal components 

• Inspect Internal Passages: Clean and inspect the internal bores and sealing surfaces for pitting, scoring, erosion, or residue buildup

• Replace Worn Components: The seat, spring, and poppet valve should be replaced as a set when any component requires replacement 

• Torque Compliance: Tighten the check valve retaining components to the specific torque values listed in the equipment service manual

• Clean Installation: Thoroughly clean the body cavity and all sealing surfaces before installing new internal components

• Lubrication: Apply high-pressure grease (e.g., FML-2) to seals and threads during reassembly to prevent galling and dry start-up 

• Clean Area Maintenance: Perform rebuilds in a designated clean area to prevent contamination of replacement parts with abrasive particles. Wear disposable gloves to prevent natural oils from being introduced to seal materials 

Replacement Criteria:

• Replace the check valve body immediately if cracks, severe internal erosion, thread damage, or visible deformation is detected

• If internal passages are excessively worn or sealing surfaces are compromised beyond refinishing, replace the entire body

Cross-Reference Information:

• OMAX #300732

• AccuStream 1-11999

• Also known as Check Valve Body (P2040)