Pressure-reducing valves DN 15 - DN 150, PN 16 - PN 40 - type 900.901

Range of application:
steam, fluids and gases.

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Construction:
diaphragm controlled,
spring-loaded proportional controller,
relieved single-seat valve,
with outside spring,
with bonnet.

Materials:
see table

Operating pressure:
PN 16       =   GG 25
PN 25/40 =   GS-C25

Temperature:
up to 300°C = GG with metal seal,
up to 350°C = GS with metal seal,
up to 130°C = GG / GS with soft seal in EPDM.

Flange connection:

GG =	DIN 2501, PN 16, DIN 2533 / EN 1092 – 2, PN 16
GS =	DIN 2501, PN 40, DIN 2545 / EN 1092 – 1, PN 40

Special constructions:
completely in stainless steel,
with internal thread connection.

Due to the system control deviations are possible,
pressure reducing valve is only functional with control line on site.

Fig. 901

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measures	downstream pressure	15	20	25	40	50	65	80	100	125	150
L	0,02 - 5 / 8 / 10 bar	130	150	160	200	230	290	310	350	400	480
h	0,02 - 5 / 8 / 10 bar	55			75		105			200
C	4,5 - 8 / 10 bar	Ø175			Ø220
H	2 -2,5 / 5 bar	520			680		760			940
H₁	0,8 - 2,5 bar	650			840		920			1100
C	0,2 - 1,2 bar	Ø220			Ø270
H		540			680		760			840
H₁		670			840		920			1000
C	0,1 - 0,6 bar	Ø270			Ø360
H		540			680		760			840
H₁		670			840		920			1000
C	0,02 / 0,05 - 0,25 bar	Ø360								Ø500
H		540			560		640			840
H₁		670			720		800			1000
KVS	m³ / h	4	5	6	20	32	50	80	100	140	160
dimensions in mm

weight approx. kgs
nominal pressure	downstream pressure / bar	nominal diameters DN
nominal pressure	downstream pressure / bar	15	20	25	40	50	65	80	100	125	150
PN 16	0,8 - 5/8/10	17	17	18	30	33	55	58	62	100	120
	0,2 - 1,2	19	19	20	32	35	57	60	64	102	122
	0,1 - 0,6	23	23	24	36	39	61	64	68	106	126
	0,02/0,05 - 0,25	23	23	24	34	37	59	62	66	112	132
PN 25/40	0,8 - 5/8/10	18	19	19	33	35	58	62	65	108	133
	0,2 - 1,2	20	20	21	35	37	60	64	67	110	135
	0,1 - 0,6	24	24	25	39	41	64	68	71	114	139
	0,02/0,05 - 0,25	24	24	25	37	39	62	66	69	120	145

part	designation	material
1	body	GG 25 / GS-C 25
2	diaphragm chamber	steel welded
3	stem	Cr-Ni-St
4	spring	steel
5	diaphragm	CR / EPDM
6	adjusting screw	steel

Please quote the medium, concentration, temperature,
max. and min. working pressure in inquiries and orders.

We reserve the right to alter technical data.

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