Inferno Weld Pad Numbering System

(8-letter system for Weld Pad)

PDF format available

Rectangular Weld Pad Gage with Reflex Glass RWA Rectangular Weld Pad Gage with Transparent Glass TWA	Series (No Standard)
1 through 5	No. of Sections
1 through 9	Glass Size
Full Slot (recommended for Transparent style) F 2-Hole/Channel (recommended for Reflex style) H	View Style (No Standard)
Flat Back A To fit outside diameter of 3" pipe H To fit outside diameter of 4" pipe B To fit outside diameter of 5" pipe Y To fit outside diameter of 6" pipe C To fit outside diameter of 8" pipe D To fit outside diameter of 10" pipe E To fit outside diameter of 12" pipe G Other curving X	Flat/Curved (No Standard)
Mild steel A Steel per SA 696 (not listed in Table UCS-23, Section VIII) B T-304 Stainless Steel per SA 479 or SA 240 D T-316 Stainless Steel per SA 479 or SA 240 E T-304L Stainless Steel per SA 479 or SA 240 F T-316L Stainless Steel per SA 479 or SA 240 G Alloy 20 (Carpenter 20 TM) H Monel 400 J C-276 (Hastelloy C-276 TM) K Steel per SA 516-70 (per section VIII, ASME) P Other X	Pad Material (No Standard)
AISI 1018 Steel A Steel per SA 696 (not listed in Table UCS-23, Section VIII) B T-304 Stainless Steel D T-316 Stainless Steel E T-304L Stainless Steel F T-316L Stainless Steel G Alloy 20 (Carpenter 20 TM) H Monel 400 J C-276 (Hastelloy C-276 TM) K Steel per SA 516-70 (per section VIII, ASME) P Other X	Cover Material (A = Standard)
Aluminosilicate, Tempered A Borosilicate, Tempered B Fused Quartz C Other X	Glass Material (B = Standard)
NON-asbestos (NBR) / (Same) A TeflonTM, Glass-Filled / (NON-asbestos) B Grafoil / (Grafoil) C VitonTM / (NON-asbestos) D Neoprene / (NON-asbestos) E TeflonTM, Unfilled / (NON-asbestos) H EPDM Rubber / (NON-asbestos) J Nitrile Rubber / (NON-asbestos) K NON-asbestos (SBR) / (Same) L Other X	Seal/Cushion Material (A = Standard)
A-194 2H / A-193 B7 A Heat Treated Steel / Heat Treated Steel B A-193 B7M / Steel per NACE C A-194 Gr8 / A-193 B8 Cl 2 (304 SS) D A-194 Gr8M / A-193 B8M Class 2 (316 SS) E Alloy 20 / Alloy 20 H Monel 400 / Monel 400 J Other X	Nut/Stud Material (A = Standard)
Mica Shield B Kel-F Shield C PFATM (See Through TeflonTM) Shield D Scale - Specify English or Metric Units E Non-Frost Extension F Explosion Proof Illuminator G 1-Cross Tie per section (for Hoop Strength -- Full Slot Only) H Flush / Brush Access hole (1/2" NPTF), Top & Bottom J Drain Hole (1/8" NPTF) Bottom only K Belleville Spring Washers L 3/8" Weld Bevel -- all four sides M No Radius -- Rectangular Square Corners N 2-Cross Ties per section (for Hoop Strength -- Full Slot Only) P Low Stress Radius on all four corners of Pad -- STANDARD R Extra-Thick Welding Pad T Wash Nozzle, Internal W Other X	Accessories & Options (R = Standard)

Example shown: RWA-27-HCPABAAR/E
RWA	Reflex Series 'A'
2	Two Section
7	Size #7 Glass
H	2-Hole and Channel View style (Recommended for Reflex Glass)
C	Curved to fit outside diameter of 6" Pipe
P	Pad Material, Steel per SA 516-70 (per Section VIII, ASME)
A	AISI 1018 Steel Cover Material
B	Tempered Borosilicate Glass
A	NBR binder NON-asbestos sheet / (Same)
A	A-194 2H / A-193 B7 Nuts & Studs
R/E	Low Stress Radius on all four corners of Pad Scale - Specify English or Metric Units

Visible Length: 22"
Overall Length: 23.5"
(from Table)