DANA PIROOZ KISH

Type 06850, Type 06855

Safety Valves, angle type, stainless steel, type tested, TÜV-SV.1130. S/G/L

Full lift / standard safety valve (D₀10 standard, D₀14 and D₀18 full lift) metal to metal seated, "cleaned and degreased for oxygen service" closed bonnet, gastight cap or lifting device Inlet: male thread type G (BSPP) acc. to ISO 228/1 Outlet: female thread type G (BSPP) acc. to ISO 228/1

Part No. 06850.X.000000M (Pmax 20.0 bar)
Part No. 06850.X.000000H (Pmax 250.0 bar) stellited version
with gastight cap

Part No. 06855.X.000000M (Pmax 20.0 bar)
Part No. 06855.X.000000H (Pmax 250.0 bar) stellited version
with lifting device

Available options - on request only:

- Flange-, NPT- or Tri-Clamp connection for in- and outlet

Applications:
Provided as safety device for protection against excessive pressure in gas cylinders and pressure vessels. Approved for gases, vapours and liquids.
Working temperature: -270°C / -454°F (3K) up to +400°C / +752°F (673K) Pressure-temperature must be observed, suitable for horizontal installation from 20 bar

Materials		DIN EN	ASME/ASTM
1	Outlet body	1.4408	A 351 CF8M
2	Inlet body	1.4571	A 276 Grade 316Ti
3	Disc	1.4571	A 276 Grade 316Ti
4	Stem	1.4404	A 276 Grade 316L
5	Bonnet	1.4408	A 351 CF8M
6	Spring	1.4571	A 313 Grade 316Ti
7	Cap	1.4408	A 351 CF8M
8	Lifting cap	1.4408	A 351 CF8M
9	Lever	1.4301	A 276 Grade 304

Standard marking acc. to Pressure Equipment
Directive 97/23/EG (PED).

Type 06850, 06855	Technical data
Nominal size	GW	1/2	3/4	1	1/2	3/4	1	1	1-1/4	1-1/2
Orifice	d₀	10.0	10.0	10.0	14.0	14.0	14.0	18.0	18.0	18.0
Pressure range	bar	0.5-250.0	0.5-250.0	0.5-250.0	0.2-50.0	0.2-200.0	0.2-200.0	0.5-110.0	0.5-110.0	0.5-110.0

Orifice in mm.

Technical data

D₀ [mm]	Nominal size [GW]	Outlet [GA]	Dimension code [.X.]	Height H₁ [mm]	Length L₁ [mm]	Length L₂ [mm]	Length A₁ [mm]	Coeff. of discharge gases, vapours [αw]	Coeff. of discharge fluids [αw]	Weight 06850 [kg]**
10	1/2	1	1024	291.0	53	44.5	14.0	0.84	0.68	3.20
10	3/4	1	1034	291.0	53	44.5	16.0	0.84	0.68	3.20
10	1	1	1044	291.0	53	44.5	18.0	0.84	0.68	3.20
14	1/2	1	1424	294.5	55	48.2	14.0	0.70	0.46-0.50*	3.40
14	1/2	1-1/4	1425	294.5	55	48.2	14.0	0.70	0.46-0.50*	3.40
14	1/2	1-1/2	1426	294.5	55	48.2	14.0	0.70	0.46-0.50*	3.40
14	3/4	1	1434	294.5	55	48.2	16.0	0.70	0.46-0.50*	3.40
14	3/4	1-1/4	1435	294.5	55	48.2	16.0	0.70	0.46-0.50*	3.40
14	3/4	1-1/2	1436	294.5	55	48.2	16.0	0.70	0.46-0.50*	3.40
14	1	1	1444	294.5	55	48.2	18.0	0.70	0.46-0.50*	3.40
14	1	1-1/4	1445	294.5	55	48.2	18.0	0.70	0.46-0.50*	3.40
14	1	1-1/2	1446	294.5	55	48.2	18.0	0.70	0.46-0.50*	3.40
18	1	1-1/2	1846	286.0	60	49.0	18.0	0.76	0.50	3.90
18	1	2	1847	286.0	63	53.0	18.0	0.76	0.50	4.10
18	1-1/4	1-1/2	1856	286.0	60	49.0	20.0	0.76	0.50	3.90
18	1-1/4	2	1857	286.0	63	53.0	20.0	0.76	0.50	4.10
18	1-1/2	1-1/2	1866	286.0	60	49.0	20.0	0.76	0.50	4.00
18	1-1/2	2	1867	286.0	63	53.0	20.0	0.76	0.50	4.20

* 0.20-11.50 bar=0.50 / 11.51-74.99 bar=0.49 / 75.00-200.00 bar=0.46
** = Weight 06855 = Weight 06850 + 0.20 kg

Pressure-Temperature Rating

Discharge capacities
Calculation of mass flow acc. to AD2000-Merkblatt A2 / DIN EN ISO 4126-1

Medium:
A = Saturated steam in kg/h
B = Air in m³/h at 0°C and 1013,25 mbar
C = Water in kg/h at 20°C

The capacity indicated below is for a fully opened valve.

d₀- orifice
A₀ - flow area

Set pressure in bar (ü)	GW	1/2, 3/4 & 1			1/2, 3/4 & 1			1, 1-1/4 & 1-1/2
	d₀ (mm)	10.0			14.0			18.0
	A₀ (mm²)	78.5			153.9			254.0
	Medium	A	B	C	A	B	C	A	B	C
0.2		-	-	-	53	56	2146	-	-	-
0.5		46	56	2075	80	96	3035	127	152	5017
1.0		69	88	2851	112	142	4015	186	236	6638
2.0		112	142	4033	179	228	5678	309	393	9387
3.0		151	194	4939	239	306	6955	428	549	11497
4.0		189	243	5703	297	383	8031	534	688	13276
5.0		226	293	6377	356	461	8979	639	828	14843
6.0		264	343	6985	414	539	9836	743	967	16259
7.0		300	393	7545	471	616	10624	846	1106	17562
8.0		337	444	8066	529	696	11357	949	1249	18775
9.0		374	494	8555	586	773	12046	1052	1388	19914
10.0		411	544	9018	643	853	12698	1154	1530	20991
15.0		592	794	11045	926	1242	15241	1663	2229	25708
20.0		774	1053	12754	1209	1646	17599	2170	2955	29686
30.0		1139	1572	15620	1779	2454	21554	3193	4405	36357
40.0		1509	2098	18036	2356	3275	24888	4228	5878	41982
50.0		1882	2633	20165	2937	4109	27826	5271	7375	46937
60.0		2256	3175	22090	3519	4953	30482	6317	8891	51417
70.0		2630	3723	23860	4103	5808	32924	7365	10424	55537
80.0		3008	4276	25508	4693	6671	33043	8423	11973	59372
90.0		3393	4835	27055	5293	7542	35047	9501	13536	62973
100.0		3790	5396	28518	5912	8417	36943	10611	15107	66380
110.0		4202	5931	29910	6554	9251	38746	11763	16603	69620
120.0		4629	6512	31240	7220	10157	40469	-	-	-
140.0		5519	7642	33744	8608	11918	43712	-	-	-
160.0		6447	8758	36073	-	13658	46730	-	-	-
180.0		7575	9846	38262	-	15356	49564	-	-	-
200.0		-	10898	40331	-	16995	52245	-	-	-
220.0		-	11930	42300	-	-	-	-	-	-
240.0		-	12982	44181	-	-	-	-	-	-
250.0		-	13521	45092	-	-	-	-	-	-