Lochinvar 801, 400 operation manual Head Feet, Pressure, 20F 25F 30F 35F Model

Installation & Operation Manual

6 Hydronic piping

Figure 6-5Pressure Drop vs. Flow - Models 400 and 501

Pressure Drop (Feet of Head)

Pressure Drop vs Flow

(Includes Boiler Secondary Piping)

20
18
16
14
12
10
8
6
4
2
0
0	5	10	15	20	25	30	35	40	45

Flow Rate (GPM)

KBN501

KBN400

Figure 6-6Pressure Drop vs. Flow - Models 601 thru 801

Pressure Drop vs Flow

(Includes Boiler Secondary Piping)

	60
of Head)	50
	40
(Feet
	30
Drop
	20
Pressure
	10
	0
	0	10	20	30	40	50	60	70	80	90

Flow Rate (GPM)

KBN801

KBN701

KBN601

Table 6B Sizing Information for Temperature Rise Applications_20°F, 25°F, 30°F and 35°F

TEMPERATURE RISE APPLICATIONS

	MINIMUM		20°F			25°F			30°F			35°F
Model	PIPE	GPM		FT/HD	GPM		FT/HD	GPM		FT/HD	GPM		FT/HD
	SIZE
400	1 1/2"	37		21	30		14	26		11	21		8
501	1 1/2"	46		23	37		16	32		13	26		10
601	2"	55		31	44		22	38		18	32		13
701	2"	65		30	52		20	45		16	37		11
801	2"	74		33	60		23	51		18	42		12

40