联系电话：023-67631889 +86 13829297771
邮箱：sales@me-concepts.com jacky@me-concepts.com
023-67631889
重庆鸣泉智能装备科技有限公司
MECO SEAL中国区授权代理
EP-2
Double Mechanical Seal With an Elastomer Drive
The MECO EP Type-2 model is used in many sealing applications with low to medium-high shaft speeds, on small to large shaft diameters. The configuration is a double mechanical seal using an elastomer drive to rotate bearing-grade, synthetic seal faces against fixed, stainless steel seal faces. The MECO EP Type-2 uses full-contact, soft-face mechanical shaft sealing technology The MECO EP Type-2 model provides the superior performance, durability
Description
The MECO EP Type-2 seal is ideal for single- or twin-shafted extruder-compounders, plow blenders, paddle blenders, conveyors and similar rotating equipment used in the plastics, chemical, metals, pharmaceutical, food and other process industries. The EP Type-2 seal model is fully-split and typically frequently used on polymer extruders containing particulates and vapors. They are well-suited for hard-to-access equipment and machinery with set speeds and feed rates. The seal is appropriate for vacuum service, low pressures and steady-state applications that experience infrequent thermal expansion or pressure changes. In contrast, the MECO Model EP Type-3 seal can be a better match for challenging applications with frequent thermal cycles, pressure cycles and/or aggressive chemicals.
How it works
The MECO EP Type-2 seal model features a precision-machined, split seal housing similar to a stuffing box and gland follower. The elastomer drive has two rotating seal faces and a drive elastomer. The elastomer and rotors interlock, forming an airtight and watertight seal. The low-friction rotating seal faces are at right angles to the shaft and in full contact with the stationary seal faces. These rotating parts are fitted around the shaft before the seal housing is installed.
The nose or pilot of the gland follower provides the outboard (secondary) stationary seal face. A plate attached to the bottom of the stuffing box provides the inboard (primary) stationary seal face. These are precision machined stationary seal faces (stators) with lapped and polished seal surfaces. The seal cavity is charged with low-pressure air or an inert gas, which acts as a barrier fluid to provide pneumatic seal face loading.
Maintenance
The MECO EP Type 2 seal model is pneumatically-loaded to provide seal face pressure, with the air/gas also functioning as a diagnostic tool. A pressure gauge is attached to the seal housing to monitor seal cavity pressure. External springs attached to the back of the gland maintain seal face pressure and provide alignment.
As the sacrificial rotor material wears, the springs gradually expand and the seal cavity pressure gradually decreases. After a significant pressure decrease or when an opportunity presents itself, the springs should be reset. The pressure will then reset itself.
Sizing
The MECO EP Type-2 seal model is custom-designed and built to order. Typical assemblies are fully split and often are made for twin shafts. Shaft diameters range from 1″ (25mm) to 20″ (500mm) and include any size in between. Dimensions vary according to the application, but typical dimensions are shown in the illustration below. EP Type-2 seals are readily designed to fit most OEM mounting arrangements and are designer-friendly, to interface with customized in-house process equipment requirements. Seals can be built either to SAE or metric dimensions. Non-removable stuffing boxes, integral to the equipment, can be modified or machined to fit the seal as shown in examples 1 and 2.
Construction
The MECO EP Type-2 seal’s rugged components are designed for long life. The standard assembly uses stainless steel stators. A replaceable stator is available for very large shafts or highly abrasive process materials. The housing is available in various 300-series stainless steels, aluminum, or other corrosion-resistant alloys.
Rotor materials comprise a variety of filled PTFE, PEEK and PBT compounds, chosen for process compatibility. Elastomers are often white silicone; Viton®, EPDM and nitrile are available as alternatives. FDA-compliant versions of the elastomers are available.
Documentation
See the attachment above.
复制产品链接
长按图片保存/分享
询盘
重庆鸣泉智能装备科技有限公司 Woodex-MECO Industries
MECO SEAL中国区授权代理 战略合作伙伴
中国电池工业协会会员单位 Our Strategic Partner
销售热线： 023-67631889
联系人：周先生 +86 138 2929 7771
+86 191 2286 8759
邮箱：jacky@me-concepts.com sales@me-concepts.com
地址：重庆市两江新区绿地·保税中心1期6幢-14层
