Downloads

Technical Data

Valve Type: 2-way, 2-position, internal pilot operated, normally closed.
Connections: 1/4″, 3/8″, 1/2″ NPT.
Orifice Sizes / Flow Factor (Cv): 12.5 mm / 2.45 Cv.
Pressure Range: 0.7 to 15.2 bar.
Temperature Range:
- Medium: Up to +60°C.
- Ambient: +10°C to +50°C.
Response Time: 20 to 80 ms (full cycle).
Media: Air, light oils, water (contact factory for compatibilities).
Manual Override: Turn lock (normally open version only).
Protection Class: IP65 (IEC 144), NEMA 4 (dust-tight and water-resistant with electrical connector).
Mounting: (2x) #10-31 x 0.38″ DP or on pipe.
Materials:
- Elastomers: FKM, NBR, EPDM, FKM FDA*, NBR NSF*, EPDM NSF*.
- Operator Parts: 300 and 400 Series Stainless Steel.
- Shading Ring: Copper (others available on request, AC only).
- Springs: 300 Series Stainless Steel.
- Valve Body: 316 Stainless Steel (suitable for potable water applications).
Coil Specifications:
- Duty Cycle: Continuous (within specifications).
- Encapsulation: Glass-Filled Nylon.
- Insulation: Class F.
- Power: 6.5 Watts (DC), 8.5 VA (AC).
- Voltage: 6, 12, 24 VDC; 24, 120, 220, 240 VAC 50/60 Hz.
- Voltage Tolerance: ±10% Nominal.
- Winding: Class H.
Connections: DIN Style “A” EN175301-803, flying leads (PVC, 22 AWG, multi-strand copper wire, 300V, 12″ minimum length).
Flow Capacity (water at 15.2 bar):
- 1/4″: 79.5 m³/h.
- 3/8″: 94.6 m³/h.
- 1/2″: 109.8 m³/h.

Series 35G5 High-pressure valve, 1/4“ – 1/2”, 0.7 – 15.2 bar

The Spartan Scientific 35G5 series consists of 2-way, 2-position diaphragm valves with internal pilot control for a wide range of process applications. Thanks to their full bore with a 1/2″ (12.5 mm) orifice, they deliver high flow rates in a compact design.

The valves feature a 316 stainless steel body and bonnet, ensuring a robust construction and broad compatibility with various media. The series is available in normally closed (NC) configuration and achieves performance up to 15.2 bar.