ARI-CONLIFT® (AWH) PN16

ARI-CONLIFT® PN16 Condensate pump (mechanical)

Description

Application:	For discharge of condensate with limited sub-cooling
Medium:	Steam, condensate, etc.

Area of application
The condensate pump is used to pump Group 2 fluids with a density of 850 kg/m³ to 1150 kg/m³, up to a total backpressure of 8.0 bar.

The information complies to the Pressure Equipment Directive 2014/68/EU.
It is the responsibility of the system planner to ensure compliance.
The special markings on the valve must be taken into account.
Refer to the catalogue sheet to see which materials are used in standard versions.
Please contact the supplier or the manufacturer if you have any questions.

Operating principles

CONLIFT is a mechanical condensate pump which is driven by steam, compressed air or inert gas.
It works cyclically according to the positive displacement principle.
Each cycle is comprised of the following steps:

Filling
Fluid flows through the check valve at the inlet into the body of the condensate pump.
The
gas inside the body escapes via the air vent valve. The ball float (24.16) in the condensate
pump rises up according to the concentrate level; at the high trip point it operates the
control mechanism by means of a rod.
The air vent valve closes as a result and the motive medium valve opens.

Pumping
The inflowing motive medium pressurises the fluid inside the body.
The check valve at the inlet closes as a result and the check valve at the outlet opens. The ball float sinks back down in the body according to the condensate level; at the low trip point it resets the motive medium and air vent valves.

Venting
The pressurised motive medium inside the body is now able to escape via the air vent
valve.
The pressure in the body drops as a result, so that fluid can flow into it again via the check valve at the inlet. The cycle starts anew.
If the pressure difference between the condensate inlet and the feed pipe is positive, the
fluid to be pumped can flow through the condensate pump without operating the control
mechanism.

Features

• Automatic operation, adapts automatically to the condensate level
• Robust, durable design
• All internals made of stainless steel, wearing parts in hardened stainless steel
• High-endurance Inconel X-750 springs
• Body designed with high cycle fatigue strength
• No manual settings required
• Low filling head
• Works without electricity
• No leakage due to moving exterior parts
• Optional: L-section stand for mounting on frames, etc.

Diagram

ARI-CONLIFT® (PN16) Condensate pump (mechanical)

Parts
Pos.	Ers.	Bezeichnung	Fig. 82.691	Fig. 52.691	Fig. 22.691
1		Body (jacket, flanges, bottoms)	P235GH-TC1, 1.0345; P250GH, 1.0460; P265GH, 1.0425	X6CrNiMoTi 17-12-2, 1.4571	EN-GJS-400-18-LT, 5.3103
17	x	Gasket	Graphite (CrNi laminated)
24.16	x	Ball float	X5CrNi18-10, 1.4301
24.44		Cover	P265GH, 1.0425	X6CrNiMoTi 17-12-2, 1.4571	EN-GJS-400-18-LT, 5.3103
24.48 – 24.50		Switch frame, shift lever	GC22CrNi17, 1.4059
24.53 – 24.-57		Seats, stems, stem nuts	X20Cr13+QT, 1.4021+QT
24.60 – 24.61		Spring slot, tension spring	X20Cr13+QT, 1.4021+QT, Inconel X-750
24.59, 24.62		Bolt	X20Cr13+QT, 1.4021+QT
27		Cheese head screw	A4-70		21CrMoV 5-7, 1.7709
49	x	Sealing ring	A4
50		Screw plug	5.6	X6CrNiMoTi 17-12-2, 1.4571	21CrMoV 5-7, 1.7709
84	x	Checko – D	GX5CrNiMo 19-11-2, 1.4408
85		Flange	P250GH, 1.0460	X6CrNiMoTi 17-12-2, 1.4571	P250GH, 1.0460
86	x	Gasket	Graphite (CrNi laminated)
	└ Spare parts