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  • 产品名称: DEEP POLYPAK HYDRAULIC SEAL WITH KNIFE TRIMMED SCRAPER LIPS (DPP)
  • 浏览次数: 126

Parker's Deep PolyPak® (DPP Profile) is a symmetrical profile squeeze seal for use in either rod or piston applications. Its rectangular shape ensures stability in the gland. The standard Molythane® shell provides high wear resistance and the O-ring energizer functions as a spring to maintain sealing contact under low pressure or vacuum applications. 

The DPP Profile PolyPak seal's scraper lip design cuts fluid film and moves contamination away from the seal. The sharp edge of the lip is formed by a precision knife trimming process during manufacture. 

A wide selection of sizes and alternate compounds allow this profile to match up with many hydraulic applications. The DPP Profile PolyPak seal is an economical choice as a stand-alone rod or piston seal. DPP Profile seals should not be installed back-to-back in bi-directional piston applications as a pressure trap between the seals may occur.

Standard Materials (Shell, or Seal Body):
• P4615A90 Molythane®; Temp -65 / +200F; Pressure* 5000 psi; Surface speed <1.6 ft/s
• P4622A90 Ultrathane®; Temp -65 / +225F; Pressure* 5000 psi; Surface speed <1.6 ft/s
• Z4651D60 PolyMyte®; Temp -65 / +200F; Pressure* 5000 psi; Surface speed <1.6 ft/s
• N4263A90 Nitroxile® XNBR; Temp -65 / +200F; Pressure* 5000 psi; Surface speed <1.6 ft/s
• E4207A90 Ethylene Propylene; Temp -65 / +200F; Pressure* 5000 psi; Surface speed <1.6 ft/s
• V4266A95 FKM; Temp -65 / +200F; Pressure* 5000 psi; Surface speed <1.6 ft/s
• V4208A90 FKM; Temp -65 / +200F; Pressure* 5000 psi; Surface speed <1.6 ft/s
• N4007A95 HNBR; Temp -20 / +320F; Pressure* 2500 psi; Surface speed <1.6 ft/s

Energizer Spring Element Materials: 
• For seals with 4615 or 4622 PolyPak shell, the standard spring energizer is a nitrile o-ring
• For seals with 4651 PolyPak seal body, the O-spring energizer code must be specified. The standard code is "N" for nitrile o-ring
• For seals with rubber PolyPak seal body, standard spring energizer is an o-ring from the same rubber material family as the seal body.

Alternate Materials: For applications that may require an alternate material, please contact your Parker EPS representative. 

*Pressure ranges shown are for systems without wear rings. If using wear rings, please consult Engineering Section (Section 2) of Parker's Fluid Power Seal Design Guide, Catalog EPS5370.

最大压力 (PSI)
2000 to 7000
最低工作温度 (F)
-65
最高工作温度 (F)
400
主体材料
FKM, TPU, TPCE, EPDM, XNBR, HNBR
弹簧材料
FKN, NBR, EPR
流体兼容性
Broad range, Oils, Water / Steam
颜色
Black, Orange, Yellow
标称硬度
90A, 60D, 95A
热应用 (F)
Varies depending on material
聚合物系列
FKM, FPM (Fluorocarbon), TPU (Polyurethane), TPC-ET (Thermoplastic Copolyester Elastomer), EPDM, EPM, EPR, (Ethylene Propylene Rubber), XNBR (Carboxylated Nitrile-Butadiene), HNBR, HSN (Hydrogenated Nitrile-Butadiene)
认证
Varies depending on material, including NORSOK
符合认证
Varies depending on material, including NORSOK M-710, ISO 23936-2 H2S and RGD, API 6A
行业标准
Varies depending on material, includes API 6A (FF/HH) (10% Sour Gas)
媒介
Hydraulic
长度测量单位
inch
最大表面速度 (M/S)
100 (0.5 m/s)

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