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

Range of application:
steam, fluids and gases.

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

zoom in

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.