Piston Valves

• Steam
• Superheated steam
• P.G
• Ammonia

DIMENSIONS
FLANGED CL-150
Size	F to F	H	Do	Dr	Di	T
15	108	112	90	35	15	11.6
20	117	132	100	43	20	13.2
25	127	150	110	51	25	14.7
32	140	185	115	63.5	32	16.3
40	165	196	125	73	40	17.9
50	203	226	150	92	50	19.5

 

DIMENSIONS
FLANGED CL-300
Size	F to F	H	Do	Dr	Di	T
15	152	112	95	35	15	14.7
20	178	132	115	43	20	16.3
25	203	150	125	51	25	18.0
32	216	185	135	63.5	32	19.5
40	229	196	155	73	40	21.1
50	267	226	165	92	50	22.7

(FIG A)                                         STANDAERD MATERIAL COMBINATION
S.No	PART	MATERIAL	STANDARD
1	BODY	CARBON STEEL	ASTM A216 Gr.-WCB
2	LOWER SEALING RING	S.S. REINFORCED GRAPHITE	–
3	PISTON	STAINLESS STEEL	AISI 304
4	SPACER BUSH	STAINLESS STEEL	AISI 410
5	UPPER SEALING RING	S.S. REINFORCED GRAPHITE	–
6	CHECK-NUT	BRASS	BS : 2872
7	BONNET	CARBON STEEL	ASTM A216 Gr.-WCB
8	SPINDLE	STAINLESS STEEL	AISI 410
9	HAND WHEEL	S.G.IRON	ASTM A536-1960
10	WASHER	MILD STEEL	–
11	NUT	CARBON STEEL	ASTM A194 Gr 2H
12	NUTS	CARBON STEEL	ASTM A194 Gr 2H
13	BELLIVILE WASHER	SPRING STEEL	DIN 17222 Gr C-80
14	STUDS	CARBON STEEL	ASTM A 193 Gr B7

TECHNICAL DATA
	CL-800	CL-300	CL-150
Body design condition	CLASS 800	CLASS 300	CLASS 150
Max. Allowable pressure	57.5 barg @ 425°C	28 barg @ 425°C	5.5 barg @ 425°C
Min. Allowable temp.	-30°C	-30°C	-30°C
Max. Operating pressure For saturated steam	90.2 barg @ 100°C	40 barg @ 100°C	17.7 barg @ 100°C
Max. Operating temp.	425°C	425°C	425°C
Max. hydraulic body testing	156 barg	76 barg	30 barg

• ASME B 16.34, ASME B 16.10, ASME B16.5
• API – 602
• IBR-1950
• Inspection & testing API – 598

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