Mechanical seal system SPA-530
A complete and fully functional Plan 53A system for arrangement 3 (3CW-FB, 3CW-BB, 3CW-FF) dual seals in accordance with API 682 or ISO 21049 latest edition – for shaft diameters ≤ 60mm.
These low budget, yet complete and fully functional units are best suited for standard applications. Also for applications with shaft diameters > 60mm, but that requires an exception to the API 682.
Design ASME VIII, div. 1/not stamped and/or the European legislation (CE) such as PED 2014/68/EU and the ATEX 2014/34/EU – Zone 2 II/A T1-T3.
Wetted parts AISI 316(L) – Suitable for general oil/water service – Non-hazardous.
Design 40 barg @ -15/+90°C
ANSI 300#-NPS 6” – sch.40s.
Vmin 12 L @ NLL.
Seal supply and return connections ¾” NPT
All further connections ½” NPT
Coolwater connections OD ½”
Engineering units: SI units, Bar/°C.
NDE: Visual-/hydrostatic and leaktesting.
Surface preparation : Flopac std.
Available at request:
Refer to the section ‘options’ below.
One piping assembly
An all welded – stainless steel 316L construction with threaded NPT connections, as appropriate.
The nitrogen charge-, fill and drain connections are provided with a block valve. The fill connection is additionally fitted with a non-return valve, the nitrogen charge connection with a 3.2mm bore SS 316 restriction orifice. Further appendages as appropriate.
One pressure indicating transmitter
A 4-20mA Smart/Hart® transmitter of high industrial quality with a 0.2% accuracy, including local display. Wetted parts SS316 with an IP 66 PU coated aluminium housing.
Mounted on a SS316 instrument valve.
One level transmitter
A 4-20mA Smart/Hart® Guided Wave Radar (GWR) transmitter of high industrial quality with a 0.5% accuracy, excluding local display. Wetted parts SS316 with an IP 66 PU coated aluminium housing.
One level indicator
A Flopac weld pad level gauge with reflex glass complete with level markings. Wetted parts SS316.
One internal cooling coil
A Flopac high efficiency spiral wound cooling coil fitted inside the reservoir. Nominal capacity 850 Watt. Wetted parts SS316. Connections OD ½” – tube.
Addition of a buffer liquid circulation unit; to ensure circulation and to enhance cooling capacity.
Addition of an all stainless steel 5 ltr refill unit with 75cc/str handpump. (Other refill options available.)
Westelijke Havendijk 15
4703 RA Roosendaal
+31 (0)165 593 170