Thermal System Piping

Attachment 1 Technical Specifications "Thermal System Piping” July 14, 2026 BACKGROUND This purchase is to acquire piping, fittings, valves, and pipe connections for the thermal systems which cool the Proton Exchange Membrane (PEM) electrolyzer stacks being tested as part of the Multimegawatt (MMW) Electrolysis project. The process fluids will be 50/50 propylene glycol/water. This cooling system is required for successful execution of the MMW electrolysis project. OBJECTIVE The purpose of this procurement is to purchase the equipment needed to connect National Laboratory of the Rockies (NLR) large dry coolers to the PEM electrolyzer balance of plant. The cooling system is critical for temperature control of the experiment requiring a reliable system that minimizes down time for repair and maintenance. SPECIFICATIONS: REQUIRED CAPABILITIES • Materials of construction shall be compatible with the process fluid of 50/50 propylene glycol/water • Maximum allowable working pressure (MAWP) shall be > 150 psi (10.3 bar) for all components • Maximum allowable working temperature (MAWT) shall be > 200°F (93°C) for all components • Minimum allowable working temperature shall be < -22°F (-30°C) for all components • All components shall be outdoor rated • All components, unless specifically noted, shall have end connections meeting the Victaulic Original Groove System (OGS) Specifications and meet the requirements (e.g., pipe size and squareness) of the Victaulic Field Installation Handbook o Victaulic Original Groove System (OGS) Specifications document for reference: https://assets.victaulic.com/assets/uploads/literature/25.01.pdf o Victaulic Field Installation Handbook document for reference: https://assets.victaulic.com/assets/uploads/literature/I-100.pdf  The maximum allowable tolerance from square-cut pipe ends is 1/16 inch/1.6 mm for 4 – 24-inch/DN100 – DN600 sizes. This is measured from the true square line (from page 4 of the Field Installation Handbook) • All components, unless specifically noted, shall be of the Iron Pipe Size (IPS) category • All components shall have Ethylene Propylene Diene Monomer (EPDM) seals/seats in alignment with the table below • All components, unless specifically noted, shall be Victaulic brand -- 1 of 5 -- • Pressure-containing portions of the equipment (see table below) shall be designed to the applicable sections of ASME pressure codes. • Include delivery costs and freight to NLR Flatirons Campus: 19001 W 119th Ave, Arvada, CO 80007 A list of components to be purchased is provided below: General Description Catalog Description Quantity Notes Flanged Reducing Elbow , 90 LR, 6"flg x 8"grv Victaulic_IPS_Elb Base Sprt Redc_No R100F (OGSxFLG)_08.0x06.0 (200x150) 8 Tee, 8 in, groove Victaulic_IPS_Tee_No 20 (OGS)_8 (200) 6 Elbow, 90 LR, 8 in, groove Victaulic_IPS_Elb 90 Deg LR_No 100 (OGS)_8 (200) 6 1 ½ D Cross, 8 in, groove Victaulic_IPS_Cross_No 35 (OGS)_8 (200) 2 Butterfly Valve, 8 in, groove, Vic-300 MasterSeal Lever Lock EPDM green - 30 F to 230 F, Victaulic_IPS_Valve Butterfly Vic-300 Masterseal Lever Handle_ (OGS)_8 (200) 761 series 8 Disk: Standard, Ductile Iron. Seat: EPDM. Stem: Standard 416 Stainless Steel. Butterfly Valve, 10 in, groove, Vic-300 MasterSeal 10- Position Handle EPDM green -30 F to 230 F Victaulic_IPS_Valve Butterfly Vic-300 Masterseal 10- Position Handle_ (OGS)_10 (200) 1 Disk: Standard, Ductile Iron. Seat: EPDM. Stem: Standard 416 Stainless Steel. Wye Strainer, 8 in, groove Victaulic_IPS_Strainer Wye_Type_Series 732 (OGS)_8 (200) 2 8 – 12"/DN200 – DN300: 0.188"/4.76 mm diameter perforations on 0.25"/6.35 mm centers, 51% open area. Underlaid with wire mesh with greater than 45% open area Reducing Tee, 8 x 1.5 in FNPT Branch Victaulic_IPS_Tee Redc Thd_No 29F (OGSxFPT)_08.0x01.5 (200x40) 2 Eccentric Reducer, 8 x 6 in, groove Victaulic_IPS_Rdcr Ecc_No 51 (OGS)_08.0x06.0 (200x150) 2 Flange to Nipple adapter, 6 in, groove Victaulic_IP_Flgd Adptr Nip_CL 150 F_No 45R (OGSxFLG)_6 (150) 2 -- 2 of 5 -- Flange to Nipple adapter, 10 in, groove Victaulic_IPS_Flgd Adaptr Nip_CL 150FF_No 45F (OGSxFLG)_10 2 Flanged Reducing Elbow, 90 LR, 4"flg x 8"grv Victaulic_IPS _Elb Base Sprt Redc_No R100F (OGSxFLG)_08.0x04.0 (200x100) 2 Reducing Tee, 8 x 2 in FNPT Branch Victaulic_IPS_Tee Redc Thd_No 29F (OGSxFPT)_08.0x02.0 2 Eccentric Reducer, 10 x 8 in, groove Victaulic_IPS_Rdcr Ecc_No 51 (OGS)_10.0x08.0 (250x200) 2 Elbow, 45 LR, 8 in, groove Victaulic_IPS_Elb 45 Deg LR_No 110 (OGS)_8 (200) 1 Reducing Wye, 10 x 8 in, groove Victaulic_IPS_Latl 45 Deg Redc_No 30-R SWS (OGS)_10.0x08.0 (250x200) 1 Reducing Tee, 10 x 8 in, groove Victaulic_IPS_Tee Redc_No 25 (OGS)_10.0x08.0 (250x200) 1 Elbow, 90 LR, 10 inch, Flange to groove Victaulic_IPS_Elb Base Sprt_No 100F (OGSxFLG)_10 (250) 2 1 ½ D Reducing Tee, 10 x 2 in FNPT Branch Victaulic_IPS_Tee Redc Thd_No 29F (OGSxFPT)_10.0x02.0 (250x50) 2 Elbow, 90 LR, 10 in, groove Victaulic_IPS_Elb 90 Deg LR_No 100 (OGS)_10 (250) 11 1 ½ D Reducing Tee, 10 x 4 in, groove Victaulic_IPS_Tee Redc_No 25 (OGS)_10.0x04.0 (250x100) 10 Elbow, 90, 4 in, groove Victaulic_IPS_Elb 90 Deg_No 10 (OGS)_4(100) 12 Flange to Nipple adapter, 4 in, groove Victaulic_IPS_Flgd Adptr Nip_CL 150 RF_No 45r (OGSxFLG) 4 (100) 3 Elbow, 45, 4 in, groove Victaulic_IPS_Elb 45 Deg_No 11 (OGS)_4 (100) 5 Butterfly Valve, 4 in, groove, Vic-300 MasterSeal EPDM green Victaulic_IPS_Valve Btfl Vic- 300 MS Lvr Hdl_Series 761 (OGS) 4 (100) 10 Disk: Standard, Ductile Iron. Seat: EPDM. Stem: Standard 416 Stainless Steel. Reducing Tee, 4 x 1.5 in, groove Victaulic_IPS_Tee Redc_No 25 (OGS)_04.0x01.5 (100x40) 3 Conentric Reducer, 6 x 4 in, groove Victaulic_IPS_Rdcr Conc_No 50 (OGS)_06.0 (165.1)x04.0 (150x100) 3 -- 3 of 5 -- Flange to Nipple adapter, 6 in, groove Victaulic_IPS_Flgd Adptr Nip_CL 150 FF_No 45F (OGSxFLG)_6 (150) 3 Flex Coupler, 4 in Victaulic_IPS_Cplg Flex_Style 177N (OGS) 4 (100) Green EPDM 54 Bolt option: Stainless steel oval neck trac…