INDUSTRIAL EXCESS FLOW VALVES VALVES & ACTUATORS

Stainless Steel Construction Variable connection sizes (1/8 to 1/2'' & 6 to 12mm) Safety System Shutoff Device 1. The poppet is loaded by a spring in a normally open position as long as the system is balanced. 2. If the system becomes unbalanced and the downstream pressure drops, the poppet moves towards the sealing area and prevents free, uncontrolled excess flow from the line. 3. If the downstream pressure increases, the ventilation outlet ("bleeding") enables the system to balance the pressures and (with the help of the spring) reset the system. In this situation, the poppet reverts back to...

CLEANING & PACKAGING Every H-911 series Excess flow valve is cleaned in accordance with Standard Cleaning and Packaging (procedure 8184). Oxygen Clean & Lubricant Free Cleaning and packaging, in accordance with Special Cleaning and Packaging (procedure 8185), is available as an option. The design of the H-911 Valves has been tested for Proof and Burst. Every assembled valve is tested for proper functionality. Valve Body Material Body Spring VALVES & ACTUATORS Open Postion 5 Spring Resets the system back to the normally open position when the downstream pressure equalizes the upstream pressure....

PRESSURE TEMPERATURE RANGES The estimate refers to O-Rings and back up made from Fluorocarbon FKM. For O-Rings made from other materials, see ordering information. n 5000 psi (344 bar) for the H-911 Series with end connections 3/8 NPT female. n 4600 psi (316 bar) for the H-911 Series with end connection 1/2 NPT female. n n PRESSURE TEMPERATURE RANGES FOR 316 St.St STANDARD CONFIGURATION DIMENSIONS 3/8'' LET-LOK® Tube Fittings PRESSURE TEMPERATURE RANGES O-ring Material Ethylene propylene VALVES & ACTUATORS Fluorocarbon FKM O-Rings are standard. For other O-Ring materials, see ordering information....

FLOW DATA AT 70°F (20°C) For springs with other trip ranges, consult a Ham-Let representative. AIR FLOW - CONNECTION SIZES : 3/8" , 10MM Flow (std L/min) 400 Trip Range Trip Range 350 Inlet Pressure (psig) 5000 Inlet Pressure (psig) VALVES & ACTUATORS AIR FLOW - CONNECTION SIZES : 1/4" , 6MM AIR FLOW - CONNECTION SIZES : 1/2" , 12MM Flow (std L/min) 3000 6000 9000 11000 6000 Trip Range Trip Range WATER FLOW Connection Size Inlet Pressure (psig) HAM-LET ADVANCED CONTROL TECHNOLOGY

H-911 SERIES ORDERING INFORMATION Valve Series BLANK - Standard Cleaning & Passivation VALVES & ACTUATORS Valve Type - LET-LOK® End - Female End - Male End - Male to Female End - Male to LET-LOK® End - Face Seal Male Connector - LET-LOK® Tube Fitting - ONE-LOK® Tube Fitting - O-ring Face Seal Male *1/8 is available for Female and Male Thearded ends only Other end connections are available upon request. The system designer and user have the sole responsibility for selecting products suitable for their special application requirements, ensuring their safe and trouble-free installation, operation,...