Nepovratni ventili |inox cevni pribor | Proizvodi od nerdjajućeg čelika (inox, prohrom) | MGM Inženjering

Nepovratni ventili

Nepovratni ventil sa oprugom

Features

1/4"~3" (DN8~DN80)
W.P. : 800 WOG (PN50)
W.T. : -20°C~200°C (-4°F~392°F)
Investment casting
Thread type : ASME B1.20.1 (NPT); DIN2999 & BS21; ISO228/1 & ISO7/1

ITEM	PARTS	MATERIAL
1	BODY	ASTM A351-CF8M
2	BONNET	ASTM A351-CF8M
3	SPRING	AISI 316 / AISI 304
4	SCREW	AISI 316
5	DISC	AISI 316
6	BODYSEAL	PTFE

DN	d	L	H
8	15	65	46,5
10	15	65	46,5
15	15	65	46,5
20	20	80	68,5
25	25	90	71
32	32	105	74
40	38	120	82,5
50	50	140	95
65	65	180	121,3
80	80	200	138,3

NPS	d	L	H
1/4"	0,59	2,56	1,83
3/8"	0,59	2,56	1,83
1/2"	0,59	2,56	1,83
3/4"	0,79	3,15	2,7
1"	0,98	3,54	2,8
1-1/4"	1,26	4,13	2,91
1-1/2"	1,5	4,72	3,25
2"	1,97	5,51	3,74
2-1/2"	2,56	7,09	4,78
3"	3,15	7,87	5,44

Nepovratni ventil za zavarivanje, clamp

Technical data

Required different pressure for opening the valve fitted in a vertical pipe, as shown in Pressure drop/capacity diagram, could be open approx.
4,5kpa(0,045bar.)
Max.product pressure: 1000kpa(10bar)
Max.temperature: 140°C(EPDM)
Min.temperature: -10°C

Size	A	B	C	D
1,5"	34,8	38,1	38	59
2,0"	47,5	50,8	38	59
2,5"	60,2	63,5	38	59

NO.	MATERIAL
1	Short Body
2	Long Body
3	Clamp
4	O-ring
5	Seal-Ring
6	ST.ST Spring
7	Flow Support Plate
8	Disc

Pressure drop/capacity diagram

Note: For the diagram the following applies:
Medium: Water(20°C)

1/2"	3/4"	1"	1,5"	2"	2,5"	3"	4"
0,09	0,23	0,75	1,3	0,44	0,68	0,33	0,42

Materials

Steel parts:	Stainless steel
	SS316(L)
Seal rings:	EPDM rubber or
	SILICONE/Viton
Finish:	OD≤0,8, ID≤0,8 or 0,4μm

Connections

The valve is available with welding ends for tubes according to 3A, SMS, BS, DIN 11851.

Options

Material grades

A) Product welted seal rings of Nitrile (NBR) or Fluorinated rubber (EPDM)

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