Socket Weld to Thread
Hose Barb to Thread
Hose Barb Specialty Adapters
SAE Split Flange Adapters
SAE 4-Bolt Companion Flanges
SAE 4-Bolt Standard Flanges
Reservoir Layout Tools
DMIC Customers Build The Best Power Units
It seems simple enough, ho hum ... adapters, until you delve a little deeper and realize the flexibility in power unit design, the possibility of o-ring sealed suction lines to 6" bore, repeatability of construction, and the sheer breadth of what can be achieved.
Say goodbye to cavitation troubles and leakage from large bore NPT, not to mention field warranty service related to weeping from the suction system.
Typically, any project involving a hydraulic power unit begins with the reservoir. In almost every case, reservoir to pump interface involves:
Reservoir Weld fitting
Hose/pipe run to pump
Pump Inlet port fitting
'SSW' system makes it easy and inexpensive for you to lay out a prototype reservoir, and with repeatability, later put the design into mass production if you like. You can even change the spec from imperial to metric, and the overall dimensions will stay the same. You can build a 2nd power unit years later, that is identical to the first unit furnished. The weeping and cavitation risk of a faulty NPT joint is eliminated with o-ring sealing at every connection. Full porting means reduced heat generation and lower energy consumption in operation.
It's true that Made In U.S.A. DMIC 'SSW' adapters cost more to manufacture than the offshore NPT fittings they replace. But we all know that when you try to be cheap, you often end up buying it twice.
Specifying 'SSW' on the inlet reduces design, manufacturing, skilled labor and warranty service costs to a degree where the overall cost savings can dwarf the minimal cost premium of the 'SSW" hardware installation.
Step 1 - Provision the Inlet / Shut-Off Valve Mounting Point
DMIC furnishes a series of Suction Line Simplifiers in inline, 45°, and 90° versions. For L-shaped reservoirs, our customers swear by the 'SNE' 90° Elbow version of the SNS.
Here is an 'SNS' inline adapter. To install it, cut a hole in the reservoir above the silt line, and weld it in place, NPT side in. The NPT thread you see is for installation of a baffle tube, or strainer with an inexpensive close-nipple. NPT threads submersed within the reservoir are not at risk of leakage, and permit the use of low cost plumbing fittings.
The pilot guarantees square welding, and because we are welding this adapter in place before any valve installation is involved, the reservoir can be well cleaned of spatter and residue. Heat damage to valves is eliminated as well, since they are absent during the welding process.
When eventual valve installation occurs, the straight thread allows the valve to be freely located in position. Use a spanner to tighten the swivel locknut, and the valve is set the valve rigidly in place with an o-ring seal.
Step 2 - Install the shutoff valve
Choosing a DMIC 'BVAL' shutoff Ball valve allows the designer to draw from a wide array of pre-engineered accessories. Unlike throwaway shutoff valves, DMIC's low pressure valves are purpose built for hydraulic service. Things like OSHA-compliant lockout, position sensing, actuation, and special sealing are second nature to DMIC. We ship custom optioned valves with deliveries in days, if not from stock.
Install the valve onto the male SAE thread of the installed reservoir Suction Line Simplifier. Align the handle, and with a spanner wrench, tighten the locknut.
You now have a shutoff valve with outstanding mechanical rigidity, o-ring sealing, and unrestricted bore for low DP.
NOTE: For L-shaped reservoirs, you may have to remove the handle to swing the valve. Only an allen key and slot screwdriver is required
Step 3 - Install the Hose or Tube connection to the shutoff valve
At the outlet port of the shutoff valve, two popular options are to go directly to hose via Hose Barb, or to use a hose assembly incorporating SAE Split Flanges. DMIC's 'SSW' System covers both possibilities, and even allows you to butt weld an SAE 4-Bolt companion on the reservoir for a direct hose connection. The possibilities are endless !
Here is the 'HBL', used to equip the SAE ORB shutoff valve with a hose barb. 'SSE' 90° and 'EBS' 45° elbow versions are also available from stock.
In cases where the designers prefer to use an SAE Split Flanged hose assembly, instead of a run of hose, simply specify a 4-Bolt Flange 'FMC' inline adapter in place of the 'HBL'.
We now have a reservoir and inlet line terminated by a hose barb and are ready to specify the connection at the pump inlet port
All connections are O-ring sealed, even if the port is larger than the standard SAE 2" limit, or if the port is the less frequently seen 3½" SAE as used by some premier pump brands. The inlet assembly is mechanically rigid, and can be easily cleaned to hydraulic standards to reduce startup filtration stress.
Step 4 - Run the hose/tube, and mount the inlet hose/tube to the pump
The 'HBS' inline hose barb adapter, along with a C.61 Split Flange kit such as DMIC's 'FSL', completes the connection at the pump inlet.
If your pump uses an SAE ORB inlet port, another Thread to Barb adapter such as 'HBS' in step 2, can be used.