Manual Springless Diaphragm Valve (SF)

Dimensions Major Specifications

	Manual Actuators
Cv Value	0.6
Orifice Size	5.8mm
Max. Working Pressure (G.)	Vacuum to 300 psig (20.8bar)
Operating Pressure (G.)	-
Burst Pressure (G.)	3,200 psig (220bar)
Max. Working Temp.	-10 ~ 150℉ ( -23 ~ 65℃)
Internal Leakage Allowance (He) Test Pressure ≤1 x 10-2 Torr	≤1 x 10-9 atm ˙ cc/sec
External Leakage Allowance (He) Test Pressure ≤1 x 10-2 Torr	≤1 x 10-9 atm ˙ cc/sec
Particle Inspection (BA, EP) Pressure : 60~80psi N2 Gas Sample Volum : 1CFM 0.1㎛ and Larger	No Count

Material

Body	316L Stainless Steel, 316L Stainless Steel Remelted
Seat	PCTFE
Diaphragm	Ni-Co Alloy
O-Ring	FKM

Ordering Information

GRADE	BA	EP
Inner Surface Roughness	Ry ≤ 3.0 ㎛ 10 μ inch Ra(Avg.) Cut Off Length : 0.8mm Measuring Length : 4mm	Ry ≤ 0.7 ㎛ 5 μ inch Ra(Avg.) Cut Off Length : 0.25mm Measuring Length : 1.25mm
Polishing	Machining Finish	Electro Polishing Finish

Example Part Numbers

Ordering	S8SF-VM-L-GR-P
Material	316L Stainless Steel
Series	Manual diaphragm Valve
End Connection	1/2” Male integral MFS fitting
Flow	Straight Type
Manual Handle	Locking Handle
Handle Color	Green
Pneumatic	-
Grade	EP Grade

Color Coded Handles * Eight handle colors are available * Blue Handle as standard Flow Path

Ports	Schematic	Flow Path		Designator
		Closed	Open
4 Port				4
				5
3 Port				1
				2
				3
		uhp_sf_21		6
				7
2 Port				8
				9
				10

End Connections

End Connection		Basic Ordering		L mm(inch)
Inlet/Outlet	Size	Number
Female MFS Fittings	1/4”		S4SF-VF-	70.6 (2.78)
	1/2”		S8SF-VF-	106 (4.16)
Male MFS Fittings	1/4”		S4SF-RM-	75.2 (2.96)
	1/2”		S8SF-RM-	106 (4.16)
Tube Butt Weld	1/4”		S6SF-TW-	57.1 (2.25)
	1/2”		S8SF-TW-