Author: GPP

Explore GPP’s ultra-high-pressure 94ksi–100ksi fittings—engineered for extreme environments in aerospace, hydrogen energy, pharma, and defense industries.

At GPP Extreme Pressure, we manufacture a complete line of high-quality fittings and accessories for the waterjet and food processing industries. We offer many OEM compatible parts rated at 94,000 psi [6,481 bar] including a 3/8” Trunnioned cross fitting, p/n 014523-1. These fittings, GPP p/n AX-94K6-TN, use a trunnion plate on either side of the…

After years of only one source of reliable 100K psi tubing, GPP Extreme Pressure is happy to announce they have a reliable alternative. Following the difficulties of supplying our customers during the pandemic, we scoured the planet for a second source of 100,000 psi tubing to meet our customer’s needs. This new product called XT100…

The attenuator on a waterjet pump intensifier pump plays a critical role in maximizing waterjet cut quality. When the intensifier shifts at the end of a stroke, the change in direction of the plunger/piston assembly causes a momentary loss of production of pressurized water. This manifests itself as a periodic drop in the cutting pressure…

While there are many ways to seal systems containing high pressure liquids and gasses, the most common method of sealing in high pressure plumbing is the use of conical metal to metal sealing. This method is particularly common in waterjet systems, both in the pump and in the plumbing carrying high pressure water from the…

Engineered for 66,000 psi, GPP’s high-pressure fittings deliver unmatched strength, reliability, and compliance for extreme industrial applications.

GPP Extreme Pressure takes pride in producing a comprehensive line of high-quality adapters tailored for the waterjet, food processing, and general fluid handling industries. Our adapters encompass a wide range of configurations, including male-to-male and male-to-female designs, accommodating various connection types such as NPT, BSP, JIC, O-ring Boss, hose barb, and compatibility with pressure specifications…

GPP offers highly engineered basic elements of any waterjet infrastructure, tubing, fittings, and valves. Ordinary plumbing systems can be successfully created with components available from hundreds of parts vendors. However, in high pressure systems, the source of componentry does make a difference. With GPP’s expertise in metallurgy, machining, and high-pressure engineering, you are assured of…

The extreme water pressures used in waterjet equipment cause very large tensile (stretching) stresses at the wetted surfaces of the stainless steel high pressure parts. Repeated changes in these pressure-induced stresses from normal pump operation will eventually result in formation and growth of metal “fatigue cracks” at these same wetted surfaces, causing part failure manifested…