GESTRA Blowdown (TDS, LEVEL)

GESTRA Intermittent Bottom Blowdown

Manual or automatic, programme-controlled intermittent blowdown of land and marine boilers, in particular boilers operating without constant supervision in accordance with TRD 604 (German regulations concerning the operation of steam boilers).

GESTRA rapid-action intermittent blowdown valves ensure an optimim sludge removal by rapid opening of their full cross-sectional area.
GESTRA rapid-action intermittent blowdown valves produce a maximum closing force, so that an optimum tightness is obtained.
GESTRA rapid-action intermittent blowdown valves are manufactured of high-quality materials ensuring a specially high resistance against corrosive and abrasive materials.

Manual	Auto	Pmax	Rating
PA46	MPA46	36 bar at 246 °C	PN40/ANSI300
PA47	MPA47	55 bar at 271 °C	PN63/ANSI600
PA110	MPA110	196 bar at 363 °C	PN250/ANSI1500

Model : PA46 / MP46

Rating : PN40 / Class300

Material : Forged Steel

Connection : Flanged PN40 / ANSI300, Butt Welded, Socket Welded

Size : DN20, DN25, DN32, DN40, DN50

Model : PA47 / MP47

Rating : PN63 / Class600

Material : Forged Steel

Connection : Flanged PN63 / ANSI600, Butt Welded, Socket Welded

Size : DN25, DN40, DN50

Model : PA110 / MP110

Rating : PN250 / Class1500

Material : Forged Steel

Connection : Flanged PN250 / ANSI900/ANSI1500, Butt Welded, Socket Welded

Size : DN25

Gestra TDS Continuous Blowdown

The most effective blowdown (dissolved-solids removal) is obtained by a continuous process so that the minimum quantity of water is discharged from the boilder. GESTRA continuous blowdown valves (Reactomats) type BA or BAE were specially designed for this purpose. These robust valves are of compact design and easy to operate. The essential part of the valve is the GESTRA multi-stage nozzle or - for large blowdown rates - the radial stage noozle serving as discharge and control unit. The noozle allows the water withdraws from the boiler to expand and flash gradually across each successive orifice area and expansion chamber. The flashing effect reduces the blowdown velocity and virtually eliminates the risk of wire drawing. The noise level of the valves is therefore very low.

GESTRA blowdown valves have proven themselves for decades. The high quality standard is guaranteed by our production methods and quality assurance.

Manual	Auto	Pmax	Rating
BA46	BAE46	36 bar at 246 °C	PN40/ANSI300
BA47	BAE47	55 bar at 271 °C	PN63/ANSI600
BA210	BAE210	142 bar at 340 °C	PN250/ANSI1500
BA211	BAE211	220 bar at 374 °C	PN320/ANSI1500