Flowserve Allpac 682 Pusher Seal

Product Brand

Flowserve

Type

Mechanical Seals

SubType

Pusher Seals

About this product

Allpac 682 mechanical seals work to significantly increase pump reliability in dirty and contaminated applications by protecting dynamic design mechanisms.

Solids

Up to 20%

API 682

Fully compliant

Pressure

Up to 730 psi

Features and Benefitss

• Clean design with springs outside the process fluid prevents clogging and hang-up for applications with up to 20% solids.

• Dual pressurized arrangement enables zero process emissions to optimally protect the environment and help facilities achieve decarbonization goals.

• Thick cross-section seal faces are double-balanced for high barrier pressure operation and upset pressure reversals, ensuring seal faces always remain closed.

• Outer seal options are available to provide the right level of performance capability and economy; all options maintain API 682 compliance and the correct level of barrier fluid circulation.

• Engineered to retrofit into existing API 610 pump installations and resolve ongoing contamination challenges or can be specified in new, clean and/or dirty applications.

Specifications

Standard:

• API Standard 682 (4th Edition)

Operating Parameters:

• Process pressure: to 50.3 bar (730 psi)

• Barrier pressure: 1.4 to 15 bar (20 to 220 psi) over process

• Temperature: -40°C to 204°C (-40°F to 400°F)

• Speed: to 5,000 rpm or 23 m/s (75 ft/s)

• Size Range: Shaft size: 19.0 to 127 mm (0.750 to 5.000 in)

Materials of Construction:

• Metal components: 316 stainless steel, Alloy C-276, duplex

• Seal faces: Silicon carbide

• Gaskets: Fluoroelastomer, nitrile, perfluoroelastomer

• Springs: Alloy C-276

Configurations

• Arrangement 3 pressurized dual wet seal (Common Piping Plans 53A, 53B, 53C, 54)

• Allpac 682/ISC2-XP

• Allpac 682/QB

• Allpac 682/HSH

Industries

Chemicals

• Biofuels

Oil & Gas

• Upstream Exploration & Production

• Midstream Transportation

• Downstream Processing