FIP hose fittings, German FIP models, FIP prices

FIP hose fittings are end-type straight connectors used to connect metal hoses to enclosures; they are detachable connection points between components and pipelines. They play an indispensable role in pipe fittings and are one of the two main components of hydraulic piping. Hose assemblies are high-quality flexible pipes in modern industrial piping systems. They mainly consist of bellows, a wire braid, and fittings. The inner tube is a thin-walled stainless steel bellows with a spiral or annular shape, and the outer braid is woven from stainless steel wire or steel strip according to specific parameters. The fittings or flanges at both ends of the hose match the customer's pipeline fittings or flanges. The hose bellows are formed by high-precision plastic deformation of extremely thin-walled seamless or welded stainless steel pipes. The elastic characteristics of the bellows profile give the hose excellent flexibility and fatigue resistance, allowing it to easily absorb cyclic loads from various motion deformations, especially compensating for large displacements in piping systems. Media visualization, process automation.

FIP hose fitting classification

Classified by material: Carbon steel: ASTM/ASME A234 WPB, WPC; Alloy: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911, 15Mo3 15CrMoV, 35CrMoV; Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N; ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti; ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H; Low-temperature steel: ASTM/ASME A402 WPL3-WPL 6; High-performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70; Cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon chrome asphalt, PVC, PPR, RFPP (reinforced polypropylene), etc. Classified by manufacturing method: push-formed, pressed, forged, cast, etc. Classified by manufacturing standard: national standard, electrical standard, marine standard, chemical industry standard, water industry standard, American standard, German standard, Japanese standard, Russian standard, etc. Classified by radius of curvature: long-radius elbows and short-radius elbows. Long-radius elbows have a radius of curvature equal to 1.5 times the outer diameter of the pipe, i.e., R=1.5D; short-radius elbows have a radius of curvature equal to the outer diameter of the pipe, i.e., R=1.0D. (D is the elbow diameter, R is the radius of curvature). Classified by pressure rating: there are approximately seventeen grades, identical to American pipe standards, including: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, SCH100, Sch120, Sch140, Sch160, XXS; among which STD and XS are the most commonly used. Classified by shape and application: grooved elbows, ferrule-type elbows, double-socket elbows, flanged elbows, reducing elbows, fixed-seat elbows, internal/external thread elbows, stamped elbows, push-formed elbows, socket-weld elbows, butt-weld elbows, internal thread elbows, etc.

FIP hose fitting advantages

High strength: Based on the principle of cold work hardening of steel, the strength of the straight threads rolled on the rebar is significantly improved, making the tensile strength of the straight thread joint higher than that of the base rebar material. Stable performance: The connection process is not affected by worker skill levels, ensuring stable performance. Fast connection speed: Since off-site prefabrication and on-site assembly are used, rebars with pre-threaded ends can be mass-produced and stored in the rebar yard. When the schedule is tight, only additional assembly workers are needed on site. Easy management: Mismatches between sleeves and rebars do not occur, and inspection is convenient. Simple operation: Ordinary workers can become proficient after a few hours of training. Significant economic and social benefits: Shortens construction cycles, improves engineering quality, reduces energy consumption, benefits environmental protection, reduces equipment investment, has low additional costs, and offers clear economic and social benefits.

FIP hose fitting installation

1. Cut the seamless steel pipe to the appropriate length and remove burrs from the port. The pipe end must be perpendicular to the axis, with an angular tolerance not greater than 0.5°. If the pipe needs to be bent, the straight length from the pipe end to the bend must be no less than three times the nut length. 2. Slide the nut and ferrule onto the seamless steel pipe. Note the direction of the nut and ferrule; do not install them backwards. 3. Apply lubricating oil to the threads of the pre-assembled fitting body and the ferrule, insert the pipe into the fitting body (the pipe must be fully inserted), and hand-tighten the nut. 4. Tighten the nut until the ferrule grips the pipe; this turning point can be felt by an increase in tightening torque (pressure point). 5. After reaching the pressure point, tighten the compression nut another 1/2 turn. 6. Remove the pre-assembled fitting body and check the embedding of the ferrule cutting edge; the visible raised band must fill the space at the ferrule end face. The ferrule may rotate slightly but must not move axially. 7. Final installation: Apply lubricating oil to the threads of the fitting body in the actual installation, mate it with the compression nut, and tighten until an increase in tightening torque is felt. Then tighten another 1/2 turn to complete the installation.

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