1 This series of "Irrigation Solenoid Valves With FLOW CONTROL" have 2 major options:
[a] with "FLOW CONTROL" & "Manual Internal Bleed Handle" & "External Bleed Plastic Screw" & "ROUND Plastic Valve Bonnet": Our Model No. "DSF-1FM-FF" (1-inch), "DSF-3/4FM-FF" (3/4 inch), "DSF-1/2FM-FF" (1/2 inch);
[b] with "FLOW CONTROL" & "Manual Internal Bleed Handle" & "SQUARE Plastic Valve Bonnet", WITHOUT "External Bleed Plastic Screw": Our Model No. "DSF-1FM-FF-SQBN", having 1-inch female "NPT" threaded inlet & outlet.
2. For each type, all of them can match with our following irrigation solenoids:
"S391" series ("Black Cylindric Plastic Encapsulation" models) & "S392" series ("Black Epoxy Painted Cylindric Metal Shell" models), that are produced by ourselves at different voltage ratings, such like "Pulse DC 4-9V or 6-40V Latch", "AC 12 or 24V", "DC 12 or 24V", also "AC 110 or 220V" etc..
3. Features:
(1) options of "WITH External Bleed & ROUND Bonnet" < Our Model No. "DSF-1FM-FF", "DSF-3/4FM-FF", "DSF-1/2FM-FF" >, or "WITHOUT External Bleed & With SQUARE Bonnet" < Our Model No. "DSF-1FM-FF-SQBN" >;
(2) plastic valve body & bonnet are both made of the "Weather-proof" & "Corrosion-resistant" engineering material: "NYLON / PA66 (reinforced with 30% glass fibres)" for a longer life duration;
(3) robust synthetic rubber diaphragm ensures the "Water-tight" seal;
(4) special valve configuration with the "Self-cleaning" function is "Debris-tolerant";
(5) "Self-aligning" plastic valve bonnet permits "Fast-service" & "Easy-maintenance";
(6) "High-flow" & "Low-head-loss" design.
4. Parameters:
(1) calibre of inlet & outlet: 1 or 3/4 or 1/2 inch female "NPT" threads;
(2) working pressure: 0.069 ~ 1.05 MPa;
(3) flow rate: 12 ~ 120 litre/minute;
(4) rated voltage: 24VAC--50/60HZ < other voltage ratings available for supply on customers' specific requests >;
(5) inrush current / power: 0.4AMP / 10VA;
(6) holding current: 0.35AMP;
(7) head loss: 32 ~ 55 KPa @ flow rate from 12 to 120 litre/minute.