PSH+RR

PSH+RR

PSH+RR

Product catalog summary
Specifications:
The PSH piston seal is similar to the PSA type but includes an acetal resin wear ring to reduce misalignments and prevent extrusion. It also features a thermoplastic resin retaining ring (RR) to prevent seal ejection during cycle inversion. The seal operates under a pressure of less than 400 bar at 60°C, with a speed limit of 0.5 m/s. It is suitable for temperatures ranging from -35°C to +100°C, with peaks up to +110°C, and is compatible with mineral fluids and oils.

Materials:
The seal is made from C0-type polyurethane, known for its high modulus of elasticity, low compression set, and high abrasion resistance. The wear ring is composed of R0-type acetal resin reinforced with fiberglass, while the retaining ring is made from R2-type thermoplastic resin.

Installation Recommendations:
Ensure all sharp edges and flash are removed from the piston where the seal is housed. A lead-in chamfer should be applied to the groove to facilitate piston insertion. The seal should be lubricated before installation. For detailed installation instructions, refer to page 26.

Product Variants:
The document lists various PSH seal dimensions and corresponding material codes. For dimensions not included in the catalogue, contact the technical department.

Additional Notes:
Ensure all components are rounded and polished for optimal performance.
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Catalog excerpts

PSH+RR-1

PSH+RR TENUTA PISTONE CON ANELLO GUIDA E RITEGNO TIPO PSH + RR Descrizione La guarnizione per pistone tipo PSH e simile al tipo PSA, ma e provvista di un anello di guida in resina acetalica che oltre ad attenuare eventuali disallineamenti funge anche da antiestrusione. Un anello di ritegno tipo RR in resina termoplastica non consente l'espulsione della tenuta durante l'inversione del ciclo. Dati tecnici Pressione: < 400 bar a temperatura di 60° C Temperatura: da - 35° C a + 100° C con punte fino a +110° C Fluidi: fluidi e oli a base minerale (vedi tabella 1 a pagina 12) Materiale Il materiale proposto e il poliuretano tipo C0 ad alto modulo elastico, a basso compression-set ed elevata resistenza all'abrasione; l'anello di guida e in resina acetalica tipo R0 rinforzata con fibre di vetro. Codice materiale PSH: CR L'anello di ritegno e costruito in resina termoplastica tipo R2. Codice materiale RR: R2 Montaggio Eliminare tutti gli spigoli vivi e le bave sul pistone dove alloggia la guarnizione. Eseguire uno smusso di invito sulla camicia per facilitare l'inserimento del pistone. Lubrificare la tenuta prima del montaggio. Per ulteriori informazioni leggere le istruzioni di montaggio a pag. 26. PSH+RR TYPE PISTON SEAL WITH WEAR AND RETAINING RING Description The PSH piston seal type is similar to the PSA type, but it has an acetylic resin wear ring to mitigate possible misalignments and avoid extrusion. A RR retaining ring made of thermoplastic resin prevents seal ejection during the cycle inversion. Technical data Pressure: < 400 bar at a temperature of 60° C Temperature: from - 35° C to + 100° C with peaks till +110° C Fluids: mineral fluids and oils (see table 1, page 12) Material The proposed material is a C0-type polyurethane with high modulus of elasticity, low compression set and high abrasion resistance. The wear ring is made of a R0-type acetylic resin reinforced with fibreglass. Compound reference PSH: CR The retaining seal is made of thermoplastic resin, R2 type. Compound reference RR: R2 Assembling Avoid all cutting edges and flash on the piston where the seal is housed. A lead-in chamfer in the groove will facilitate the piston insertion. Lubricate the seal before installation. For further information please refer to the installation instructions on page 26. Sistemi di tenuta per oteodinamica Hydraulic sealing systems

 Open the catalog to page 1
PSH+RR-2

PSA PAE PSH RR PSO PSQ TPD KDSA KDSB KDSP KDAE Nota: altre dimensioni non a catalogo a richiesta. Consultare il nostro ufficio tecnico. Remark: please contact our technical dept. for further dimensions not included in the catalogue. Profili - Montaggio - Guarnizioni stelo - Guarnizioni pistone - Anelli guida - Raschiatori Profiles - Assembling - Rod seals - Piston seals - Wear ring - Wipers

 Open the catalog to page 2

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Archived catalogs

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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