Hydraulic separators - SPD

Hydraulic separator type SPD can be fitted between a primary liquid circuit and a secondary liquid circuit for examlpe to separate boiler cycle and thermal cycle. Hydraulic separator has been desinged for middle and high power heatting systems consisting of one or many boilers and one or many thermals cycles. Hydraulic separator type SPD ensured independence work those systems without compensate of flow.

Description:

• separates boiler cycle and thermal cycle
• keeps independence fluid flux in boiler cycle and thermal cycle,
• excluded necessity flow compensate boiler cycle and thermal cycle,
• cleans
• deaerates

Construction:

Hydraulic separator is made of low-carbon steel and externally painted. On the shell (1) are mounted four pipe connectors. To the inlet and outlet connectors (2) and (3), is connected the boiler cycle. To inlet and outlet connectors (4) and (5), is connected the thermal cycle. Inside the vessel is localized a perforated sreen (7). It prevents flow water from the boiler to the thermal and also increase deaerating effect. For eliminate of air, on the top part of the vessel is connector pipe (6) for connecting deaerating valve. Water passes through division cleaning sreens (9) and exits the outlet. For get rid of pollutions from the Hydraulic separator is connector pipe (10), where is connected a blowdown valve.

Priciple of operation:

Using the Hydraulic separator in a boiler system to divide the boiler cycle from the thermal cycle. Stand out cases:

• the state, where quantity thermal factor on primary side is equal quantity heat received by thermal system (pic.1.). The quantity delivered heat QD is equal quantity heat received QO.
• when demand for heat is lower  QO, the valves on system heat are closing. Part of stream passes along the Hydraulic separator (pic.2). The heat excess QD give back and boiler sensors receive signal to decrease the boilers power or turn off them.
• when demand for heat QO is bigger than heat deliver by boilers QD, the pumps on heating system force return stream (pic.3), by this temperature in thermal cycle is decreasing. Boiler sensor receive signal to increase heat power or turn on next boiler.

Technical data

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Series	DN	Max. Q [m³/h]	Press. nom. [bar]	Temp. nom. [°C]	Weight netto [kg]	Val. [dm³]	Dimensions
							D	L	A	B	H	R	O	S	T
SPD40/150	40	3,5	6	100**	16	14	159	320	172	160	825	45	½"	1"	½"
SPD50/150	50	4			18	14	159	320	172	160	825	45
SPD65/200	65	9			32	39	219	380	245	220	1150	70
SPD80/250	80	13			61	119	324	500	347	324	1665	110
SPD100/300*	100	20			66	119	324	500	347	324	1665	110	2"	2"	2"
SPD125/356*	125	30			92	155	356	500	366	356	1800	110
SPD150/457*	150	45			143	343	457	630	491	457	2552	110
SPD200/650*	200	80		150	280	888	650	830	535	650	3020	110
SPD250/800*	250	125			520	1897	810	1065	785	810	4000	110
SPD300/800*	300	180			530	1897	810	1065	785	810	4000	110
SPD350/1000*	350	240			970	3857	1012	1275	1065	1012	5170	110
SPD400/1200*	400	320			1370	5629	1214	1480	1120	1012	5280	110
SPD450/1200*	450	450			1385	5629	1214	1480	1120	1012	5280	110
SPD500/1200*	500	500			1420	5629	1214	1480	1120	1012	5280	110

* it may be made with legs,
** for individual order it may be made for temperature 150°C.
- connection flanged PN16,
- flangeds dimension PN-ISO 7005-1.