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Springless Diaphragm Valve Series

UHP Products

Manual Springless Diaphragm Valve - Directional (SP/HPSP)

■ Quick, quarter-turn actuation
■ Handle shape provides visual indication of OPEN and CLOSED position
■ Available on high- and low-pressure models 
sp_directional.gif
Dimensions Low - Pressure Valves high - Pressure Valves * Dimensions, in millimeters, are for reference only and are subject to change. Material
  Low - Pressure Valves High - Pressure Valves
Body 316L Stainless Steel,
316L Stainless Steel Remelted
Seat PCTFE
Diaphragm Ni-Co Alloy
O-Ring Viton FKM
Major Specifications
  Manual Actuators
Low - Pressure Valves High - Pressure Valves
Cv Value 0.27 0.2
Orifice Size 4.0mm
Max. Working Pressure (G.) Vacuum to 250 psig (17 bar) Vacuum to 3,045 psig (210 bar)
Operating Pressure (G.) -
Burst Pressure (G.) 3,200 psig (220bar) 12,200 psig (840bar)
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 Volume : 1CFM
0.1㎛ and Larger 		No count
Ordering Number
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 S4SP-VM-L-GR-P D4HPSP-VFVFVF-7-C
Material 316L Stainless Steel 316L Stainless Steel Remelted
Series Low - pressure
Manual diaphragm valve 		High - pressure
Pneumatic diaphragm valve
End Connection 1/4 Male integral MFS fitting 1/4 Female integral MFS fitting
Flow Straight Type 3-port
Manual Handle Locking Handle -
Handle Color Green -
Pneumatic - Normally Closed
Grade EP Grade BA Grade
Color Coded Handles * Eight handle colors are available * Low-pressure valves have blue handles as standard * High-pressure valves have white handles as standard Flow Path
Ports Schematic Flow Path Designator
Closed Open
4 Port


4



5
3 Port

  1
 uhp_sp_14     2
 

3
 

6
 

7
2 Port


8



9

 
10
End Connections
Designator Dimensions, mm(inch)
L H M
1/4 in. tube butt weld
TW 44.2 (1.74) 22.1 (0.87) 19.3 (0.76)
1/4 in. female MFS fitting
VF 70.6 (2.78) 35.3 (1.39) 41.4 (1.63)
1/4 in. tube butt weld   TW 58.4 (2.30) 29.2 (1.15) -
1/4 in. tube butt weld   TW 69.5 (2.74) 34.7 (1.37) -

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