Product Name: Pipe Nipple (1/2" x 3.0") – Part No. 05074067

Description:
This component is a pipe nipple with nominal dimensions of 1/2 inch NPT (National Pipe Thread) by 3.0 inches in length. It serves as a rigid connector between two threaded female NPT ports in the low-pressure hydraulic or water circuit of a waterjet cutting system.

The designation .50 x .30 indicates a 1/2 inch nominal pipe size with a 3.0 inch overall length. It is typically manufactured from corrosion-resistant materials such as plated carbon steel or stainless steel to withstand exposure to water, hydraulic fluid, and abrasive environments. Pipe nipples of this type are commonly used in Parker ST Series quick disconnect coupling systems for industrial applications where a rigid male-to-male connection is required between two female threaded ports .

According to manufacturer documentation, this component is listed as Item 10 in Table 12-30 of the Coolant Plumbing Assembly (P/N 20498099) for waterjet cutting systems, with a quantity of 4 required per assembly. The coolant plumbing assembly manages the flow of cooling water for the hydraulic heat exchanger and intensifier pump cooling circuits.

Applications:

• Connects two female NPT ports in the coolant plumbing assembly of waterjet cutting systems

• Serves as a rigid fluid conduit in low-pressure water and hydraulic circuits

• Used in hydraulic and water cooling systems where a straight, rigid connection is required

• Part of the Coolant Plumbing Assembly (P/N 20498099) in waterjet intensifier systems

Features:

• Standard Pipe Thread: Features NPT (National Pipe Thread) male ends for threaded connections to standard pipe fittings

• 1/2 Inch Nominal Size: Standard port size for medium-flow hydraulic and water circuits in waterjet systems

• 3.0 Inch Length: Provides sufficient length for proper connection within the coolant plumbing assembly

• Rigid Construction: Machined from solid bar stock, providing a rigid, leak-proof connection

• Corrosion-Resistant Material: Typically manufactured from plated carbon steel or stainless steel for durability

• Direct OEM Replacement: Listed as Item 10 in Coolant Plumbing Assembly 20498099 (Quantity: 4)

Maintenance:

Failure Diagnosis (When to Replace):

• External Fluid Leakage: Visible water or hydraulic fluid weeping from the threaded connections indicates thread damage or improper sealing, requiring immediate replacement

• Thread Damage: Stripped, galled, or corroded threads prevent proper tightening and sealing

• Corrosion: Visible rust or pitting on the nipple body compromises structural integrity

• Cracked or Deformed Body: Any visible cracking or distortion of the nipple body warrants immediate replacement

• Persistent Leakage: If leakage continues after reapplying thread sealant, replace the nipple

Inspection and Replacement Guidelines:

• Full Depressurization (Critical): Before any maintenance, place the main electrical disconnect in the OFF position, fully depressurize the waterjet system, and follow lockout/tagout procedures. Never service a pressurized system

• Thread Preparation: Clean all threads thoroughly with a soft brush and compatible solvent. Remove all debris, old sealant, and corrosion

• Thread Sealant Application: Apply PTFE tape or pipe thread sealant to the male NPT threads. Wrap tape in the direction of the threads (clockwise when looking at the end) to prevent unraveling during installation. Use sealant sparingly to avoid contaminating the fluid system

• Proper Seating: Thread the nipple into the female port by hand to avoid cross-threading before applying final torque

• Torque Compliance: Tighten the nipple to the specific torque value listed in the equipment service manual. Over-tightening can damage threads; under-tightening will cause leaks

• Inspect Mating Ports: Before installing a new nipple, inspect the female port threads for damage or corrosion. Replace the mating component if thread damage is found

• Replacement Criteria: Replace the nipple immediately if threads are damaged, the body shows visible cracking or deformation, severe corrosion is present, or persistent leakage occurs despite proper installation with new sealant

• Cross-Reference Part Numbers: Interchangeable with standard 1/2" NPT pipe nipples of 3.0" length conforming to ASME B1.20.1 specifications