Univers 1600

Pneumatic cryogenic globe valve

Univers 1600: For use at cryogenic temperatures down to LHe (1.8 K). With standard welding flange for vacuum jacketing (optional sizes on request). The valve body optimizes the heat input and shows optimized flow rate (Kv value). Sniffle hole (G 1/8”) to detection chamber/pressure control for supervision of bellow tightness. Pneumatic diaphragm actuator with only small footprint for space-saving installation.
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.

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stoehr-armaturen_univers1600.pdf

Series Univers 1600

Abbreviations keys

Parameters: Univers1600_C_GV_P

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	Kv-Value	Drawing number	Single inquiry
10	25	13,0 x 1,5	-	A+437	38	38	300…1300	2	-	162	0,15	18-1600/2.2.1	Single inquiry
10	25	13,0 x 1,5	-	A+437	38	38	300…1300	4	-	162	0,58	18-1600/4.2.1	Single inquiry
10	25	13,0 x 1,5	-	A+437	38	38	300…1300	6	-	162	1,2	18-1600/6.2.1	Single inquiry
10	25	13,0 x 1,5	-	A+437	40	40	300…1300	8	-	162	2,0	18-1600/8.2.1	Single inquiry
10	25	17,2 x 1,6	-	A+500	40	40	300…1300	10	-	162	3,3	18-1600.2.1	Single inquiry
15	25	21,3 x 2,0	-	A+500	50	50	300…1300	15	-	162	7,7	18-1601.2.1	Single inquiry
20	25	26,9 x 2,3	-	A+500	70	70	300…1500	20	-	210	14	18-1602.2.1	Single inquiry
25	25	33,7 x 2,0	-	A+500	80	80	300…1500	25	-	210	25,5	18-1603.2.1	Single inquiry
32	25	42,4 x 2,0	-	A+550	80	80	300…1500	32	-	310	37,1	18-1604.2.1	Single inquiry
40	25	48,3 x 2,0	-	A+550	100	100	300…1500	40	-	310	58,9	18-1605.2.1	Single inquiry
50	25	60,3 x 2,0	-	A+750	100	100	300…1500	50	-	430	86,7	18-1606.2.1	Single inquiry
65	25	76,1 x 2,0	-	A+750	125	125	600…1500	65	-	430	145	18-1607.2.1	Single inquiry
80	25	88,9 x 2,11	-	A+900	155	155	600…1500	80	-	430	177	18-1608.2.1	Single inquiry
100	25	114,3 x 2,6	-	A+900	175	175	600…1500	100	-	430	276	18-1609	Single inquiry
125	10	154,0 x 2,0	-	A+950	200	200	600…1500	125	-	770	420	18-1610	Single inquiry
10	40	13,0 x 1,5	A+437	-	38	38	300…1300	2	162	-	0,15	18-1600/2	Single inquiry
10	40	13,0 x 1,5	A+437	-	38	38	300…1300	4	162	-	0,58	18-1600/4	Single inquiry
10	40	13,0 x 1,5	A+437	-	38	38	300…1300	6	162	-	1,2	18-1600/6	Single inquiry
10	40	13,0 x 1,5	A+437	-	40	40	300…1300	8	162	-	2,0	18-1600/8	Single inquiry
10	40	17,2 x 1,6	A+500	-	40	40	300…1300	10	162	-	3,3	18-1600	Single inquiry
15	40	21,3 x 2,0	A+500	-	50	50	300…1300	15	162	-	7,7	18-1601	Single inquiry
20	40	26,9 x 2,3	A+500	-	70	70	300…1500	20	210	-	14	18-1602	Single inquiry
25	40	33,7 x 2,0	A+500	-	80	80	300…1500	25	210	-	25,5	18-1603	Single inquiry
32	40	42,4 x 2,0	A+550	-	80	80	300…1500	32	310	-	37,1	18-1604	Single inquiry
40	40	48,3 x 2,0	A+550	-	100	100	300…1500	40	430	-	58,9	18-1605.2.1	Single inquiry
50	40	60,3 x 2,0	A+750	-	100	100	300…1500	50	430	-	86,7	18-1606	Single inquiry
65	40	76,1 x 2,0	A+750	-	125	125	600…1500	65	430	-	145	18-1607	Single inquiry
80	40	88,9 x 2,11	A+900	-	155	155	600…1500	80	430	-	177	18-1608	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	piston 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 globe valve

Abbreviation key