Parker VSTI1/4EDCF Hollow Hex Plug 1/4 in Mbspp 9137 Psi

Product Description

The PARKER VSTI1/4EDCF is a hollow hex plug designed for high-pressure hydraulic and instrumentation piping systems. It features a 1/4 inch male MBSPP (Metric British Standard Pipe Parallel) thread and is rated to a maximum working pressure of 9,137 psi. The plug seals open ports in hydraulic circuits, manifolds, and fluid power assemblies during service, testing, or system reconfiguration. Licensed plumbers, pipefitters, and hydraulic system technicians install this fitting in both industrial and mobile hydraulic applications where a reliable port closure is required.

This hollow hex plug is suited for use in hydraulic power units, machine tool circuits, and fluid control systems requiring DIN ISO 8434-compliant fittings. The MBSPP thread type is common in European-designed equipment and systems using metric parallel port connections. It is appropriate for applications across a working temperature range of -40 degrees F to 250 degrees F, making it viable in both cold-environment and elevated-temperature hydraulic circuits.

Key Features

• Maximum working pressure of 9,137 psi for demanding hydraulic service
• Pressure rating of 5,800 psi per DIN ISO 8434 standard classification
• 1/4 inch male MBSPP thread for metric parallel port applications
• Wide operating temperature range: -40 degrees F to 250 degrees F
• Meets DIN ISO 8434 standards for hydraulic fluid power fittings
• Compact hollow hex body for installation with standard hex tooling

Compatibility

Designed as an OEM-style replacement hollow hex plug for hydraulic and fluid power systems using 1/4 inch MBSPP metric parallel port connections conforming to DIN ISO 8434.

Installation Notes

Installation is performed by licensed pipefitters, millwrights, or hydraulic system technicians. Depressurize and isolate the hydraulic circuit fully before removing or installing any port plug. Use an appropriately sized hex wrench or socket to seat the plug without over-torquing the fitting body. Verify thread type compatibility with the port before installation, as MBSPP parallel threads are not interchangeable with tapered thread port standards.