DSI CAST STEEL CARBON AND STAINLESS STEEL GATE, …

1 DSI cast STEEL CARBON AND STAINLESS STEELGATE, GLOBE AND CHECK VALVES 2 Visit us at w w .com Toll Free: DSI STAINLESS STEEL Valve Figure Numbers ..7 Gate 8-13 Globe Valves ..14-17 Swing Check 18-21 Pressure Temperature 22-23 For years, DSI cast STEEL Valves have been satis-fying the needs of Petroleum Refineries, ChemicalProcessing Plants, Power Generating Plants, and Our cast STEEL Valves are designed, engineeredand manufactured in strict conformance to API,ASTM, ASME, ANSI and other recognized stan-dards. DSI cast STEEL Valves are not only charac-terized by outstanding performance, reliability andquality, they re also known for their standard fea-tures normally optional in other brands.

2 All flanged DSI cast STEEL Valves come standardwith 125-250 RA flange finishes. DSI utilizes flexi-ble graphite packing, a variety of gasket materialsand exacting assembly and testing procedures toensure compliance with the World s emissionscontrol standards. Visit our website to find outmore about Forum Energy Technologies andother DSI quality STEEL Standard Features .. 3 Testing, Modifications and Accessories,Standard Product Range withZy-Gear Bevel Gear 4 NACE Conformance andGeneral Design Specifications .. 5 Specifying DSI CARBON STEEL Valve Figure 6 cast STEEL Gate, Globe and Check Valves CONTENTSMANUFACTURER OF QUALITY VALVEPRODUCTS AROUND THE GLOBEAt Forum Energy Technologies we are committed to improving our clients operational and financial performance bysupplying the most comprehensive range of valve products in the industry through our family of trusted valve FEATURESLOW FUGITIVE EMISSION SERVICEDSI standard cast STEEL Gate, Globe and Check Valvesare designed and manufactured to ensure leakage of lessthan 100 ppm (parts per million)

3 Of volatile organic compounds (VOC).Extensive base line laboratory testing (static and cycletesting) has been performed establishing critical designparameters necessary to achieve low emission sealing inPACKING SYSTEMDSI cast STEEL Gate and Globe valves use a combina-tion of die-formed flexible graphite and interbraidedgraphite in a predetermined arrangement to ensure aneffective seal. Graphite packing achieves its maximumability to isolate the atmosphere when it is contained LOW EMISSION DESIGN OPTIONSLIVE LOAD PACKING In services requiring frequent cycling or with high pres-sure/temperature variations, live loading extends the serv-ice life between maintenance periods by requiring lessfrequent packing gland adjustments.

4 Belleville springs areemployed to provide constant packing gland RING AND DOUBLE PACKING SETL antern ring with leak-off fitting connection and doublepacking stack is optionally available for critical WEDGE DESIGNAs casting technology has improved, the wedge designhas changed from solid to flex wedge. Flex wedge has acircumferential groove around its perimeter which allowsthe seating surfaces of the wedge to move independentlyand adapt to minor changes, pipeline loads and thermalexpansion of the piping system on the valve seats. Flexwedge design minimizes the possibility of wedge lockingcompared to the solid wedge design, at high temperatureapplications due to quick cool DSI stem packing seal area for Gate and Globe Valvesand in the bonnet gasket sealing area (cover gasket forCheck Valves).

5 In-house testing procedure has been devel-oped and is periodically performed to ensure that standardproduct design and manufacturing criteria consistentlyresult in the DSI Gate, Globe and Check Valve meetingless than 100 ppm VOC leakage prior to a chamber that is precise in finish and Gate and Globe valves are manufactured with stemfinishes better than 32 Ra and stuffing box wall finishesfor 125 Ra. In addition, stem straightness and taper areclosely DESIGN AND MANUFACTURING CONTROLSAPPLIED TO PRODUCE LOW EMISSIONSERVICE VALVES IN DSI STANDARD PRODUCTS Stem Straightness and Roundness Stem Surface Finish To Max.

6 32 Ra Stuffing Box Surface Finish To Max. 125 Ra Stuffing Box and Gland Cylindricity Self Centering Gland Design Gland Packing: Die-formed Graphite Rings with Braided Graphite Top and Bottom Rings Bonnet Gaskets:Class 150 Gate: Corrugated Graphite Gasket or 316 SS Tanged Clad GraphiteClass 150 Globe & Check: 316 SS Spiral Wound Grafoil Class 300 Valves: 316 SS Spiral Wound Grafoil Class 600 & Higher: Ring Type JointPackingLantern RingPackingBevelStandardPackingLive LoadPacking4 TESTING, MODIFICATIONS, ACCESSORIES & PRODUCT RANGEDSI offers NDE Testing, a variety of ProductModifications and Accessories, saving our customerstime and resources by eliminating the need for multi-ple purchase orders, time and transportation costs.

7 Packing and Gasket Changes End Connection Modifications Gear Operator Mounting Trim Changes Actuation Cryogenic Gas Columns Hand Wheel Extensions Teflon Disc Inserts Drilled & Tapped Body/Bonnet Connections By-Pass Pressure Equalizing Acid Shields Oxygen & Chlorine Cleaning & PackagingDSI cast STEEL Valves Standard Product Range with Zy-Gear Bevel Gear ChartDSI offers a broad range of standard commodity cast STEEL Valves in flanged and weld end connections. The chart for Zy-Gears is based on torque ratings for each valve at maximum differential MODIFICATIONS FOR DSI cast STEEL VALVES Weld End Bore Changes Customer Specified Coatings Outside Lever & Weight for Check Valves Slam Retarders for Check Valves Chain Wheel Operator Block and Bleed API Performance Testing NDE TESTING AVAILABLE Dye Penetrant Test Magnetic Particle Test Radiography PMI (Positive Material Identification)

8 VALVE PRESSURE SIZE BONNET DISC ZY-GEAR TYPE CLASS RANGE Bolted 2" - 12" - 107B 150 2" - 48" OS&Y Flex 14" - 24" - 207B 30" & 36" - 307B Bolted 2" - 10" - 107B 300 2" - 30" OS&Y Flex 12" - 20" - 207B 24" & 30" - 307B Bolted 2" - 6" - 107B GATE 600 2" - 24" OS&Y Flex 8" - 12" - 207B

9 14" - 24" - 307B Bolted 2" - 6" - 107B 900 2" - 24" OS&Y Flex 8" - 10" - 207B 12" - 16" - 307B Bolted 2" - 4" - 107B 1500 2" - 12" OS&Y Flex 6" - 8" - 207B 10" - 12" - 307B 150 2" - 14" Bolted OS&Y Plug 2" - 14" - 207B GLOBE 300 2" - 12" Bolted OS&Y Plug 2" - 8"* - 207B 600 2"- 8" Bolted OS&Y Plug 2" - 8" - 207B SWING 150 2" - 24" Bolted Swing N/A CHECK 300 2" - 24" Bolted Swing N/A 600 2"

10 - 16" Bolted Swing N/ANote: DSI cast STEEL Globe and Check Valves are available in Classes 900 and your DSI salesperson for more information. *10" & 12" standard from : All information is subject to change without inter-changeable pre-drilled mountingpattern per MSS single warranty then applies to each modifiedproduct, with each product inspected for qualityand conformance to our customer s specificationsand industry & DESIGN SPECIFICATIONSNACE MR0175/MR0103 COMPLIANTOver recent years the demand for valves resistantto sulfide stress cracking in faci