PACKING/ISOLATORS/LIP SEALS

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SOOT BLOWER

SOOT BLOWER SETS

RPS44

REINER PACKING SET

K1730/K1760/K1761/K1771

ABRASIVE SERVICE ARAMID AND META-ARAMID PACKINGS

G57/G58/G58I

BRAIDED FLEXIBLE GRAPHITE PACKING

EPS

EMISSION PACKING SET

CVU/CVH

AUTOMATIC PTFE PACKING RINGS

C1065/C1070

BRAIDED GRAPHITE PTFE PACKING

C1061/C1064/C1072/1993

ABRASIVE, CHEMICAL AND EXTRUSION-RESISTANT PACKINGS

1650C/1655C/1627/G57

HIGH-TEMPERATURE CARBON BRAIDED PACKINGS

C1056/C1057

FOOD AND PHARMACEUTICAL PTFE BRAIDED PACKINGS

894/1336/1340

GENERAL-SERVICE BRAIDED GRAPHITE PACKINGS

3871

HIGH-TEMPERATURE / PRESSURE STEAM PACKING

1772/1774/1775/1777

INJECTABLE PACKING

1600N/100CU/100AL/124

FLEXIBLE METALLIC PACKING

1345/1349/1349HC

ABRASIVE SERVICE POLYMIDE PACKINGS

1625G/1626/1635G/N1635

HIGH-TEMPERATURE GRAPHITE BRAIDED PACKINGS

1330/1332/1335/C1061

GENERAL-SERVICE BRAIDED SYNTHETIC PACKINGS

CRANE-FOIL

FLEXIBLE GRAPHITE GASKET

PACKING

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What Are the Fine Points of Pump Packing Installation and Adjustment?

CLICK TO SEE THE ARTICLE FROM PUMPS & SYSTEMS

Back to Basics: Compression Packing

CLICK TO SEE THE ARTICLE FROM PUMPS & SYSTEMS

 
 

BEARING ISOLATORS AND OIL/GREASE SEALS

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STYLE EXP

EXP is a true non-contact bearing isolator that utilizes a dual expeller to create centrifugal force and drive away contamination. Statically, EXP utilizes dual vertical oriented chambers to form the most effective labyrinth on the market.

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STYLE EXP-FL

EXP-FL includes all the benefits of a standard EXP with the adaptation for flange mounted applications where pressing the stator is not recommended or possible.

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STYLE EXP-GB

EXP-GB is designed for applications where a positive seal is required because of flooded conditions. A positive seal is created within the EXP with no parts to wear on your shaft. Common applicatons are input shafts on gear boxes.

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STYLE EXP-TB

The EXP-TB is designed for steam turbines. The design coalesces and expels steam before it reaches the bearing housing.

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STYLE EXP-PB

EXP-PB includes all the benefits of a standard EXP with an adaptation to mount within the existing LER/LOR ring grooves of split pillow blocks.

 
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BPD

The Patented Orion Engineered Seals BPD represents state of the art bearing protection technology that is non‐contacting when the equipment is both stationary and rotating. 

 

OIL & GREASE LIP SEALS

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CR SEALS HANDBOOK

This all-new CR Seals handbook from SKF combines our best ideas and insights from the past and the present. We hope it becomes your first and last source for information on radial shaft seals.

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SKF SPEEDI-SLEEVE

To seal effectively, radial shaft seals must run against a smooth, round counterface. If the counterface becomes worn, the seal will no longer be able to fulfil its function, which is to retain lubricant and to exclude contaminants

 

ELASTOMERIC SEALS

Greene, Tweed’s high-performance elastomeric materials include Chemraz® FFKM, Fusion™ FKM, Xyfluor®, and Fluoraz® FEPM. Although we are best known for our fluoroelastomers, we also offer EPDM, HNBR, and NBR materials for less extreme application needs. Avalon® PTFE and Arlon® PEEK thermoplastics round out our sealing materials portfolio.

G-T® RINGS

Greene, Tweed invented the G-T® ring in the 1960s. The design, now commonly known as a T-seal, is widely used throughout the industry. The T-shaped elastomeric seal element provides more stability and eliminates roll and spiral failure in dynamic applications compared to o-rings. Integrated thermoplastic backup rings provide extrusion resistance in a compact design that has a smaller footprint than an o-ring with separate backup rings. The G-T® ring provides a bi-directional seal. We also offer the GTL™ ring, which is a unidirectional version of the G-T® ring. The Advanced Concept G-T® (ACT®) ring has a slightly modified sealing profile with a beveled sealing stem and crown that offers improved resistance to stress-strain fatigue in demanding long-stroke applications

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MSE®S

Metal Spring Energized (MSE®) seals are uni-directional seals that are well suited for reciprocating or rotary dynamic applications that require sealing force at both low and high pressures, such as tools that undergo pressure cycling. They are also applicable for cryogenic operations below the temperature capabilities of elastomeric seals. MSE®s consist of a thermoplastic jacket energized with a corrosion-resistant metallic spring. Greene, Tweed has extensive experience with this type of seal, having designed more than 300,000 MSE®s.

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SEAL STACKS
Seal stacks are a custom-designed sealing solution for complex applications, such as port crossing hardware configurations, with multiple redundant sealing elements including v-rings, adapters, load rings, and MSE®s. Greene, Tweed’s wide portfolio of elastomeric and thermoplastic materials allow us to balance requirements for wear resistance, low friction, extrusion resistance, and other challenges to design a customized sealing solution. For example, a seal stack may contain an MSE® for reliable sealing force at low pressures, with backing elastomeric v-rings for additional tight sealing against gas along with thermoplastic v-rings for superior wear resistance under high dynamic cycling.
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SEAL STACKS
CAPPED SEALS
Capped seals contain an elastomeric energizing element with a thermoplastic cap on the sealing face. The thermoplastic cap provides lower breakaway and running friction and better wear resistance than an elastomer alone in high dynamic applications, reciprocating or rotary. Capped seal designs may include thermoplastic backup rings for resistance to extrusion in high-pressure applications. Greene, Tweed offers three main types of capped seals: the Advancap™, the Ener-Cap®, and the Capped G-T® ring. • The Advancap™ is our simplest capped seal design for general-purpose duty cycles. The curved cap design resists roll and spiral failure of the o-ring energizer compared to traditional rectangular capped seals. • The Ener-Cap® seal cap geometry provides improved stability compared to the Advancap™ and eliminates roll and spiral failure. The elastomeric energizer’s profile provides more evenly distributed loading to the sealing cap for improved wear life in high duty cycle applications. • The Capped G-T® ring, a capped version of the G-T® ring, consists of a T-shaped elastomeric energizer fitted with a contoured sealing cap and integrated pressure-activated backup rings.
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LABYRINTH SEALS
Non-contacting labyrinth seals deliver leakage reduction in centrifugal pumps and compressors by restricting flow through a sequence of chambers formed between the rotating element and the teeth. Traditional metallic labyrinth seals require large clearances to avoid potential heat generation, deformation, and galling and can suffer from corrosion and erosion in certain environments. We make labyrinth seals from our thermoplastic materials, incorporating a tooth profile design that creates a more controlled flow pattern and higher dimensional stability, allowing for cyclic flex-and-return motion to withstand contact during critical speeds. This allows for tighter clearances, which dramatically increase the efficiency and reliability compared to metallic labyrinth seals.
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