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.

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

Options

Material grades

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