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API 682 Seal Plans

Most facilities have a pump or mixer that acts up on a regular basis. We have a solution.

Overview

Edmonton Valve now offers seal support systems for pumps, agitators, and mixers. Browse this section to learn the costly problem they address, unique features, your options, and how to learn more.

Big picture, here are four things to know:

Innovative design

  • Better built components and features prevent costly leaks
  • Designed to simplify assembly and maintenance
  • Intuitive design helps minimize potential for operator errors, asset damage, and leakage

Local expert resource

  • Your system is built right here in Edmonton—exactly how you want it and when you need it
  • Our technicians complete a comprehensive training and certification program every three years
  • We pull from a huge local inventory for quick, easy parts sourcing

Most reliable components

  • Integral Orifice Flange Adapters: replace threaded and welded flange assembles with a one-piece flange adapter with integral orifice
  • Orifice Union: add an orifice to a flush system, eliminating the need for welding a bulky flange
  • Thermowell Tee: reduce threaded connections & monitor temperature by pre-welding into tube fittings
  • Extended Male Connector: eliminate threaded pipe and leak points (available in 4 & 6-inch lengths to allow you to run tubing in one piece)

Configure any plan

  • Every plan is fully customizable for ease of use, maintenance, and safe operation
  • All plans are designed using API 682 recommended best practices and Swagelok’s decades of fluid systems expertise
  • Available plans include between seal, process side, and atmospheric
Photography-Seal Support Systems-48 XLG-1-1

API Plan 52 Seal Pot Assembly and API Plan 52 Kit.
Assembly and kit shown with some optional components.

Problem

When rotating equipment fails, it’s often due to a seal failure. In fact, about 40% of all unscheduled critical pump shutdowns are caused by mechanical seal failures (Grundfos). And shutdowns are often expensive.

"The diagrams... show that shaft seal failure is by far the most common cause of pump system failure. See figures 5.1 and 5.2," writes Grundfos.

Swagelok’s seal plans maximize the life of mechanical seals and the reliability of rotating equipment by maintaining lubrication and pressure with properly conditioned fluid flows.

shaftseal_chapter5_mechsealscause39percentofpumpfailures

Screenshot of Mechanical Shaft Seals for Pumps, Grundfos, page 76, http://machining.grundfos.com

Swagelok mechanical seal support systems are:

  • Guided by API 682
  • Avoid pipe threads to limit leak points
  • Reliable operation, easy maintenance
  • Simple installation and maintenance
  • Repeatable design and assembly
  • Available as assemblies or kits
  • Configurable per your requirements
  • Backed by Swagelok's industry-leading warranty

Solution

Swagelok applied decades of fluid systems engineering expertise to make our seal plans reliable, safe, and easy to maintain. For example, our systems have the fewest possible threaded connections (where costly leaks can occur).

When we say our API 682 seal plans are better by design, we mean:

  • Designed for reliability and maintenance
  • Designed for system safety
  • Designed for appropriate flow
  • Designed for tailoring to individual needs

Swagelok applied decades of fluid systems engineering expertise to make our solution reliable, safe, and easy to maintain. For example, our systems have the fewest possible threaded connections. (3 min)

Designed for reliability and maintenance

Proper start-up and commissioning are critical for reliable operation of mechanical seals and their associated support systems. For example, air in the system at startup can lead to issues with the seal support system. Flow can be disrupted or stopped in systems with chillers or seal pots. Air inclusions can also prevent the support system from providing the desired rate of cooling. Swagelok design options include high-point vents in the seal support system, so the system can be cleared.

Designed for system safety

API 682 recommends specific wall thicknesses for 1/2 inch (12 mm) to 1 inch (25 mm) OD tubing. While thinner-walled tubing, such as that used in general instrumentation installations, is often sufficient to handle the pressure and temperature of seal support systems, heavier-wall tubing provides extra rigidity in high-vibration service. Tubing with a heavier wall also creates systems that are more robust in areas where large pieces of equipment are being maintained and personnel may inadvertently come into contact with the tubing.

Designed for appropriate flow

A common flow issue is clogged orifices, which can cause a loss of flush fluid to the seal chamber, resulting in seal failure. Additionally, improper circulation of buffer and barrier fluids can also cause operational issues due to lack of appropriate system cooling. Swagelok systems are designed to prevent such this and other causes of inappropriate flow.

Designed for tailoring to individual needs

Swagelok's API 682 standard designs incorporate all the recommended components and adhere to best practices. For better operation and service of the seal and pump, we go beyond the standards to design systems specific to your application. This includes optional isolation valves, bypass loops, and instrumentation to assist the pump operator in both maintaining the system and monitoring the health of the seal.

Plans

We offer kits and assemblies:

ProcessSidePlans_hero
ProcessSidePlans_detail
BetweenSealPlans_hero
BetweenSealPlans_detail
AtmosphericSidePlans_hero
AtmosphericSidePlans_detail

About our kits

Seal plan kits (SPK) are a collection of components that are used to connect the seal support plan to the pump. Each kit contains everything needed for proper installation, including an engineered drawing. For projects or turnarounds, seal plan kits can be used to standardize how plans are connected to the pump. Kits also adhere to API best practices by showing technicians where to bend tubing to eliminate potential leak points through the reduction of elbow fittings and pipe threads.

About our assemblies

Seal plan assemblies (SPA) are panels, seal pots, or skid systems that comprise the majority of the API seal support plans. The seal plan assembly ordering numbering structure allows users to select a variety of configurations and additional system components to meet specific site or application requirements. Options and configurations not listed in the ordering numbering structure are also available. Seal plan assemblies can be ordered alone or with the associated field installation kit to provide a standard installation for site personnel.

To download details, go to the tab labeled "Catalogues".

Components

Check out innovative components below. Go to the "Catalogue" tab to download details.

integral_orifice_flange_adapter

Orifice Flange Adapter

Replace threaded or welded flange assemblies with a one-piece flange adapter with integral orifice.

thermowell-tees

Thermowell Tees

Reduce threaded connections and monitor temperature with integrated thermowell pre-welded into tube fitting tee.

extended-male-connector

Extended Male Connector

Eliminate threaded pipe and potential leak points with a single fitting. Available in 4- and 6-inch lengths to clear the shroud.

orifice-union

Orifice Union

Easily add an orifice to a flush system with the orifice union. This fitting makes welding bulky flange assemblies unnecessary.

To download details on the components shown, click "Catalogue" below or go to the tab labeled "Catalogues".

Support

For 50 years, Edmonton Valve & Fitting has provided professional support and an extensive local inventory of Swagelok products. We offer custom solutions, applications support, ebusiness solutions, training, equipment, tools, and more. In fact, our customers have saved over $10M since 2000, as reflected in their annual VIP Reports quantifying savings in several categories.

For better operation and service of the seal and pump, we go beyond the standards to design systems specific to your application. This includes optional isolation valves, bypass loops, and instrumentation to assist the pump operator in both maintaining the system and monitoring the health of the seal.

Additional options

And with Swagelok Custom Solutions from Edmonton Valve we can also:

  • Help source proper components and quickly deliver critical spares
  • Provide support from trained and certified experts
  • Help create CAD drawings to your application specifications
  • Generate bill of materials
  • Help with piping and instrumentation diagrams (P&ID)
  • Fabricate and assemble customized API 682 systems
  • Provide tube bending, welding, and other value-add services
  • Provide seal plan kits that bundle plan components

Reviews

We've gathered feedback from engineers and reliability/rotating equipment managers. Find eight examples below.

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"Standardization was a key driver to improve ease-of-use, consistency, and safety when dealing with multiple sites. Offering custom L porting tandem bypass valves to eliminate operator error and bleed off valves so operators can simulate a seal leak to test high flow alarms were just some of the improvements Swagelok helped deliver." —Mechanical Design Engineer, Chem/Petro (Canada)
2-1
"Swagelok was instrumental in providing critical support during an unplanned outage. With Swagelok’s support, we were able to have a seamless and on-time startup of a critical unit. Swagelok worked diligently to design standards, improve lead times, and deliver panels by our very aggressive need-by date."—Reliability & Rotating Equipment Engineer, Chem/Refining (US)
6-1
"The new lube systems are compact, operator friendly, and equipped with modern filtration and coolers that are readily available. In addition, they are neat, clean, and leak-free. The cleanliness and temperature of the delivered oil is markedly improved. The installation will no doubt improve the reliability and maintainability of these gearboxes going forward." —Machine Shop Operator, Chem/Refining (US)
3-1
“During this transitional period for our company, we were able to rely on Swagelok’s quality and performance to fully meet our customer’s needs.” —Project Manager, Mining (Australia)
4-1
"Swagelok's ability to identify our existing pain points demonstrates their product and application knowledge." —Reciprocating Engineer, Chem/Refining (US)
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"Swagelok was able to deliver a tailored solution to meet our needs, while saving valuable time and capital." —Reliability Engineer, Chem/Refining (US)
8-1
“Our refinery is now benefiting from improved seal flushes to the seals and can easily see if there is an issue. The shaft seal leaks no longer dictate our refinery’s maintenance interval and we consider the Swagelok Plan 32 panel a reliable system.” —Reliability Manager, Refinery (US)
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"Swagelok’s customized extended male connector fitting has allowed the simplification of these installations. This arrangement not only looks cleaner, it eliminates several pipe joints that no longer need to be monitored for potential leaks." —Rotating Equipment Reliability Manager, Chem/Refining (US)

Catalogues

To get details on plans, components, and related information, click the 'Download' button below and fill the form. You'll receive:

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API 682 Seal Plans Brochure

1

API 682 Seal Flush Plan Components

4

API 682 Seal Plans Application Guide

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API 682 Seal Plans Brochure

5

API 682 Seal Plans Brochure

6

Failure of Mechanical Shaft Seals

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Brochure →

Download

Catalogue →

Talk with us

We are ready to provide technical details, examples, and no-obligation estimates.