Plastic Lined Industrial Valves in Washington
Washington runs spent caustic through five Puget Sound refineries and spent acid through the alkylation at Anacortes, white liquor through the kraft mill at Port Townsend, chromic acid through aerospace anodizing lines and peracetic sanitizer through food plant CIP skids. In each case the valve is where a steel wetted part gives out first.
Marspec Technical Products of Fairhope, Alabama supplies plastic lined valves for those services and fabricates the PTFE, PVDF and polypropylene lined spools they bolt to. We supply Swissfluid PFA- and PTFE-lined valves and build automated valve packages in house; Swissfluid USA supports its national distribution network from its facility in Stafford, Texas. More than half a century in plastic lined piping goes into every order, and we ship nationwide. Call (251) 625-4949 with the media and conditions, or contact us online.
Where Washington plants put lined valves
Cherry Point, March Point, Ferndale and Tacoma
Five Puget Sound refineries with about 683,000 barrels a day of capacity run caustic treating and spent caustic, amine, sour water and the hypochlorite and ferric chloride at their wastewater plants, and the alkylation at Anacortes adds fresh and spent sulfuric acid. Spent acid pits a steel seat, and sulfide-laden spent caustic turns corrosive once it is neutralized, oxidized or hot, so the isolation valves are PFA lined ball valves on caustic, amine and sour water and PFA lined cylindrical plug valves on acid and sludge, where the cavity-free plug does not trap solids.
Kraft liquor at Port Townsend
The unbleached kraft mill at Port Townsend moves white liquor, 50 percent caustic and sulfuric acid for tall oil. Lined plug valves ride through hot, scaling liquor without seizing, PFA lined diaphragm valves throttle caustic without a packing gland, and lined butterfly valves cover the large filtrate and washer lines.
Aerospace acids, food CIP and water
Anodizing and plating lines at Everett, Renton and Auburn run chromic, sulfuric and nitric acid and caustic chem-milling, where small-bore PFA lined ball and diaphragm valves dose and isolate without contaminating a bath. Yakima Valley fruit and hop processors, Columbia Basin potato plants, Tri-Cities and Walla Walla wineries, dairies and seafood plants feed hot caustic and nitric and phosphoric acid to CIP skids through lined ball valves, with lined diaphragm valves or vented-ball ball valves (vent facing upstream) on the peracetic sanitizer, and the King County treatment plants dose hypochlorite, ferric chloride and bisulfite through lined diaphragm valves and checks.
Valve types we supply to Washington
All six patterns are flanged to bolt to ANSI B16.5 lined pipe, in sizes that vary by pattern: ball valves 1/2" through 10", plug valves 1/2" through 6", diaphragm valves 1/2" through 8", butterfly valves 1" through 42", ball check and sampling valves 1/2" through 6", and swing check valves 1-1/2" through 24". Linings and ratings are on our plastic lined valves page.
Plug valves
PFA-lined cylindrical plug valves, 1/2" through 2" full port and 3" through 6" reduced port, cavity-free, with no in-line adjustment, and low torque. The valve for kraft liquor, spent acid and anything that scales.
Diaphragm valves
Weir type with a PFA-lined body and a PTFE-faced diaphragm. Stem and bonnet never see the process, so they throttle hypochlorite, peracetic acid, caustic and slurry with no packing to leak.
Ball valves
A PFA lined ball turning in a PFA lined body, bubble tight and self draining. The isolation valve for caustic, acids, amine and CIP chemicals.
Butterfly valves
PFA encapsulated disc in a PTFE-lined wafer or lug body, 1" through 42", for filtrate, rinse water, dilute acid and large lines.
Sampling valves
Lined sampling valves take a representative sample from a live acid, liquor or product line with no dead leg and no operator exposure.
Check valves
Lined ball and disc check valves stop backflow at hypochlorite, acid, caustic and demineralized water pumps with no metal spring or hinge to seize.
Automation
We assemble automated valve packages in-house: pneumatic or electric actuators, positioners, limit switches and solenoids mounted on the lined valve and stroke tested before shipment, so the mill or refinery receives one tagged assembly. What we mount and test is on our services page.
Matching valves to the lined pipe
Valves are quoted with the plastic lined pipe and fittings they bolt to, which are PTFE, PVDF or polypropylene lined in carbon steel or 304/316 stainless housings, so liner faces, flange class and bolt torques agree from end to end, with lined strainers ahead of valves on liquor and brine. Liner selection for each Washington industry is on our Washington lined pipe page, and liner temperature limits, liner thicknesses, flange dimensions and torque tables are on the technical details page.
Serving Puget Sound, the Columbia and the Inland Northwest
Spools and valves ship from Fairhope, Alabama, with service to Seattle, Tacoma, Everett, Renton, Bellingham, Ferndale, Anacortes, Vancouver, Longview, Port Townsend, Yakima, Richland, Kennewick, Pasco, Walla Walla, Moses Lake and Spokane. Send the media, temperature, pressure and line size, and say what the valve must do. Call (251) 625-4949 or contact us online.
FAQ: Plastic Lined Industrial Valves in Washington
Which lined valves suit chromic and nitric acid on Puget Sound aerospace finishing lines?
Small-bore PFA lined ball valves for isolation and PFA lined diaphragm valves for dosing. PFA resists chromic, nitric and sulfuric acid and caustic chem-milling solutions, adds no metal to a plating or anodizing bath, and the diaphragm seals the stem away from the process so there is no packing to leak.
What valves do you recommend for spent caustic at the Puget Sound refineries and spent acid at Anacortes?
PFA lined ball valves for spent caustic, amine and sour water isolation and PFA lined cylindrical plug valves for spent sulfuric acid and acid sludge, because the plug is cavity-free and traps no solids. Both bolt to our lined pipe and fittings, built to ASTM F1545 and flanged to ANSI B16.5.
Do you supply actuated lined valves for Washington food plants and water utilities?
We do. Pneumatic or electric actuators, positioners, limit switches and solenoids are mounted and tested on the lined valve in our own shop, which suits CIP chemical isolation and hypochlorite dosing where a control system cycles the valve.