Honeywell MS4103 manual Properties of Saturated Steam Boiling Point or, Maximum, For valve, Gage

Appendix A: Valve Selection and Sizing

LINEAR VALVE under VALVE SELECTION for more infor- mation.

	100%		Cv = 25
	OPENING/	Cv = 41
	FLOW
	STEAM
	VALVE		LINEAR VALVE
			CHARACTERISTIC
	0%			100%
			STEM TRAVEL
				C2337
Fig. 20. Effect of Pressure Drop in Steam Valve Sizing.
Table 5. Properties of Saturated Steam.
	Boiling
	Point or
	Steam			V	Maximum
Vacuum,	Temp-		Specific		Allowable
Inches of	erature		Volume (V),	(For valve	Pressure
Mercury	(Deg F)		cu. ft/lb	sizing)	Drop, psi.
29	76.6		706.00	26.57	0.23
25	133.2		145.00	12.04	1.2
20	161.2		75.20	8.672	2.4
15	178.9		51.30	7.162	3.7
14	181.8		48.30	6.950	3.9
12	187.2		43.27	6.576	4.4
10	192.2		39.16	6.257	4.9
8	196.7		35.81	5.984	5.4
6	201.0		32.99	5.744	5.9
4	204.8		30.62	5.533	6.4
2	208.5		28.58	5.345	6.9
	Boiling
	Point or
	Steam			V	Maximum
Gage	Temp-		Specific		Allowable
Pressure,	erature		Volume (V),	(For valve	Pressure
psig	(Deg F)		cu. ft/lb	sizing)	Drop, psi.
0	212.0		26.79	5.175	7.4
1	215.3		25.20	5.020	7.8
2	218.5		23.78	4.876	8.4
3	221.5		22.57	4.751	8.8
4	224.4		21.40	4.626	9.4
5	227.1		20.41	4.518	9.8
6	229.8		19.45	4.410	10.4
7	232.3		18.64	4.317	10.8
8	234.8		17.85	4.225	11.4
9	237.1		17.16	4.142	11.8

	Steam		V	Maximum
Gage	Temp-	Specific		Allowable
Pressure,	erature	Volume (V),	(For valve	Pressure
psig	(Deg F)	cu. ft/lb	sizing)	Drop, psi.
10	239.4	16.49	4.061	12.4
11	241.6	15.90	3.987	12.8
12	243.7	15.35	3.918	13.4
15	249.8	13.87	3.724	14.8
20	258.8	12.00	3.464	17.4
25	266.8	10.57	3.251	19.8
30	274.0	9.463	3.076	22.4
35	280.6	8.56	2.93	24.8
40	286.7	7.826	2.797	27.4
45	292.4	7.209	2.685	29.8
50	297.7	6.682	2.585	32.4
55	302.6	6.232	2.496	34.8
60	307.3	5.836	2.416	37.4
65	311.8	5.491	2.343	39.8
70	316.0	5.182	2.276	42.4
75	320.0	4.912	2.216	44.8
80	323.9	4.662	2.159	47.4
85	327.6	4.445	2.108	49.8
90	331.2	4.239	2.059	52.4
95	334.6	4.060	2.015	54.8
100	337.9	3.888	1.972	57.4
110	344.1	3.595	1.896	62.3
120	350.0	3.337	1.827	67.4
130	355.2	3.12	1.766	72.3
140	360.9	2.923	1.710	77.4
150	366.2	2.746	1.657	82.3
160	370.6	2.602	1.613	87.4
170	375.5	2.462	1.569	92.3
180	379.6	2.345	1.531	97.4
190	383.9	2.234	1.495	102.3
200	387.8	2.134	1.461	107.4
225	397.4	1.918	1.385	119.8
250	406.0	1.742	1.320	132.4
275	414.2	1.595	1.263	145.0
300	421.8	1.472	1.213	157.4
350	435.6	1.272	1.128	182.4
400	448.1	1.120	1.058	207.4
450	459.5	0.998	0.999	232.4
500	470.0	0.900	0.949	257.4
550	479.7	0.818	0.904	282.4
600	488.8	0.749	0.865	307.4
650	497.3	0.690	0.831	332.4
700	505.4	0.639	0.799	357.4
800	520.3	0.554	0.744	407.4
900	533.9	0.488	0.699	457.4
1000	546.3	0.435	0.659	507.4

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