back to Products

Seal Support Systems - API Accumulator - Plan 53B

About this product

The 682-53B dual seal barrier system is Flowserve’s most popular solution for mechanical seal barrier fluid systems. It’s available as an assembled to order (ATO) product available from key global production locations with standardized components and pre-engineered configurations and packages. ATO products benefit you with faster quotation, reduced lead times and lower costs.

Features and Benefits

Two construction options — buttwelded piping with Class 600 flanges and gate valves, or tubing with compression fittings and ball valves
35-liter (10-gallon) bladder accumulator with carbon steel shell and off-shore duty paint, optional 316 stainless steel shell and/or low-temperature nitrile bladder
Preferred fixed alarm strategy or floating alarm strategy
Multiple pre-engineered seal coolers and instruments
Stainless steel stand with multiple heights
Sunshades included
Pre-engineered accessories such as a hand pump, heated accumulator blanket and accumulator isolation with pressure indicator

Specifications

Materials of Construction

Accumulator:
- Stainless Steel
- Carbon Steel Construction
Bladder:
- Buna

Operating Parameters

MAWP:
- 85.5 bar at 93.3°C
MDMT:
- -45°C
Size Range:
- 35 l (9 gal)

Standards

API Standard 682 (4th Edition)
ASME BPVC Section VIII Div. 1
Pressure Equipment Directive (PED) 2014/68/EU CSA B51

Configurations

Accumulator:
- Carbon Steel/Buna
- Stainless steel/Buna
Construction:
- Piping with Class 600 RFBW
- Tubing with NPT

Download

Plan 53B brochure