Univers 1600

Pneumatic cryogenic control valve

Univers 1600: For use at cryogenic temperatures down to LHe (1.8 K). High-value lP-controller with various standard transmission protocols and memory function, limit switches, air filter regulator. Standard welding flange for vacuum jacketing. Optional sizes are available on request. Pneumatic diaphragm actuator with a small footprint for space-saving installation. The valve body optimizes the heat input and shows optimized flow rate (Kv value). Various regulation ratios of 1:30/50/100 for precise flow control. Sniffle hole (G 1/8”) to detection chamber/pressure control for supervision of bellow tightness.
Options: Soldered Cu flange as thermal coupling positioned along the extended stem. Sliding thermal contact to cool the valve plug stem from the valve extension outer tube.High-flow surface treatment available (electro-polishing) for decreased blistering. Regulation cones with customized characteristics for low pressure rates (< 1 bar).

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■ Home ■ Products ■ Univers 1600 ■ Univers 1600 C CV PR

stoehr-armaturen_univers1600.pdf

Series Univers 1600

Abbreviations keys

Parameters: Univers1600_C_CV_PR

DN	PN	End connection d x s	Height PN40	Height PN25	Length X	Length Y	Extension A	ø Seat	ø Actuator PN40	ø Actuator PN25	Lift height	Drawing number	Single inquiry
2	25	13,5 x 1,5	-	A+437	38	38	300…1300	2	-	162	10	R18-1600/2.2.1	Single inquiry
4	25	13,5 x 1,5	-	A+437	38	38	300…1300	4	-	162	10	R18-1600/4.2.1	Single inquiry
6	25	13,5 x 1,5	-	A+437	38	38	300…1300	6	-	162	10	R18-1600/6.2.1	Single inquiry
8	25	13,5 x 1,5	-	A+437	40	40	300…1300	8	-	162	10	R18-1600/8.2.1	Single inquiry
10	25	17,2 x 1,6	-	A+500	40	40	300…1300	10	-	162	15	R18-1600.2.1	Single inquiry
15	25	21,3 x 2,0	-	A+500	50	50	300…1300	15	-	162	15	R18-1601.2.1	Single inquiry
20	25	26,9 x 2,3	-	A+500	70	70	300…1500	20	-	210	25	R18-1602.2.1	Single inquiry
25	25	33,7 x 2,0	-	A+500	80	80	300…1500	25	-	210	25	R18-1603.2.1	Single inquiry
32	25	42,4 x 2,0	-	A+550	80	80	300…1500	32	-	310	25	R18-1604.2.1	Single inquiry
40	25	48,3 x 2,0	-	A+550	100	100	300…1500	40	-	310	40	R18-1605.2.1	Single inquiry
50	25	60,3 x 2,0	-	A+750	100	100	300…1500	50	-	430	40	R18-1606.2.1	Single inquiry
65	25	76,1 x 2,0	-	A+750	125	125	600…1500	65	-	430	50	R18-1607.2.1	Single inquiry
80	25	88,9 x 2,11	-	A+900	155	155	600…1500	80	-	430	50	R18-1608.2.1	Single inquiry
100	25	114,3 x 2,6	-	A+900	175	175	600…1500	100	-	430	60	R18-1609.2.1	Single inquiry
125	10	154,0 x 2,0	-	A+950	200	200	600…1500	125	-	770	80	R18-1610.2.1	Single inquiry
2	40	13,5 x 1,5	A+437	-	38	38	300…1300	2	162	-	10	R18-1600/2	Single inquiry
4	40	13,5 x 1,5	A+437	-	38	38	300…1300	4	162	-	10	R18-1600/4	Single inquiry
6	40	13,5 x 1,5	A+437	-	38	38	300…1300	6	162	-	10	R18-1600/6	Single inquiry
8	40	13,5 x 1,5	A+437	-	40	40	300…1300	8	162	-	10	R18-1600/8	Single inquiry
10	40	17,2 x 1,6	A+500	-	40	40	300…1300	10	162	-	15	R18-1600	Single inquiry
15	40	21,3 x 2,0	A+500	-	50	50	300…1300	15	162	-	15	R18-1601	Single inquiry
20	40	26,9 x 2,3	A+500	-	70	70	300…1500	20	210	-	25	R18-1602	Single inquiry
25	40	33,7 x 2,0	A+500	-	80	80	300…1500	25	310	-	25	R18-1603	Single inquiry
32	40	42,4 x 2,0	A+550	-	80	80	300…1500	32	310	-	25	R18-1604	Single inquiry
40	40	48,3 x 2,0	A+550	-	100	100	300…1500	40	430	-	40	R18-1605	Single inquiry
50	40	60,3 x 2,0	A+750	-	100	100	300…1500	50	430	-	40	R18-1606	Single inquiry
65	40	76,1 x 2,0	A+750	-	125	125	600…1500	65	430	-	50	R18-1607	Single inquiry
80	40	88,9 x 2,11	A+900	-	155	155	600…1500	80	430	-	50	R18-1608	Single inquiry

Technical Data

Technical Data	Technical Design
Service fluids	N2, O2, Ar, H2, He, NG*
Operating temp. fluid	-271 °C to +50 °C
Operating temp. enviroment	-30 °C to +50 °C
Body material	stainless steel
Actuator	diaphragm actuator, pneumatic single-acting
Seat sealing	metal/PCTFE seat leakage rate 110-6 mbarl/s
Seat sealing	metal/PTFE seat leakage rate 110-6 mbarl/s
Seat sealing	metal/metal seat leakage rate 110-3 mbarl/s
Body sealing	metal seal ring He leakage rate to atmosphere 110-8 mbarl/s
Stem sealing	stainless steel bellow physically tight
2nd stem sealing	safety-O-ring/grooved ring (Viton)
Position indication	scale
Surface treatment	machined, ground, electro-polished or passivated**
Body shape	angle
Installation position	horizontal in flow direction, actuator on top, max. 30° vertical
Material certificates	DIN EN 10204/3.1 AD2000-A4
Actuating pressure	6 + 0,5 bar, dry compressed air or nitrogen
End connect. for actuating air	female thread G 3/8"
Welding flange	standard for vacuum insulated tubes
Safety position	normally closed or normally open (NC or NO)

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* All dangerous, toxic or acid fluids according to material compatibility.
**Surface treatment can be choosen according to customer specification. See product options

Univers 1600

Pneumatic cryogenic control valve

Abbreviation key