{"id":13282,"date":"2026-07-30T11:05:43","date_gmt":"2026-07-30T09:05:43","guid":{"rendered":"https:\/\/lubeteam.it\/prodotto\/stauff-weld-plate-for-single-clamps-type-spal-heavy-series\/"},"modified":"2026-08-05T10:42:57","modified_gmt":"2026-08-05T08:42:57","slug":"stauff-weld-plate-for-single-clamps-type-spal-heavy-series","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/stauff-weld-plate-for-single-clamps-type-spal-heavy-series\/","title":{"rendered":"STAUFF Weld Plate for Single Clamps (Type SPAL – Heavy Series)"},"content":{"rendered":"

Compliance and Reference Standards<\/h3>\n

The STAUFF Weld Plate for Single Clamps (Type SPAL – Heavy Series)<\/strong> is a fundamental component developed in accordance with DIN 3015, Part 2 (Heavy Series). The use of the Heavy Series ensures the absorption of mechanical shocks and the secure fastening of rigid pipes within hydraulic circuits. SPAL plates cover the full dimensional range required for these applications, supporting STAUFF Groups 3S to 12S, which correspond respectively to DIN Groups 1 to 10.<\/p>\n

Construction Features and Dimensions<\/h3>\n

The construction dimensions of the STAUFF Weld Plate for Single Clamps (Type SPAL – Heavy Series) increase progressively to accommodate the loads associated with the different clamp groups. For more compact systems, such as STAUFF Group 3S (DIN 1), the plate has a total length (L1) of 74 mm, a hole centre distance (L2) of 33 mm and a width (B) of 30 mm. As the dimensions and loads increase, the configuration changes accordingly: for example, Group 6S (DIN 4) reaches an L1 length of 140 mm and an L2 centre distance of 90 mm, with the B width increased to 45 mm. For extremely large pipe sizes, Group 12S (DIN 10) ensures excellent stability with an L1 length of 680 mm, an L2 distance of 534 mm and a substantial B width of 180 mm. The plate thickness (S) and boss height (H) also increase proportionally, with the thickness ranging from 8 mm for Group 3S to 30 mm for Groups 11S and 12S.<\/p>\n

Coding and Thread Options (G)<\/h3>\n

Installation flexibility is ensured by the two thread options identified within the product code. The plates are supplied in the “M” version with ISO metric threads, ranging from M10 for Groups 3S, 4S and 5S up to M30 for Groups 10S, 11S and 12S. Alternatively, the “U” version is available with Unified Coarse (UNC) threads, ranging from 3\/8-16 UNC up to 1-1\/4-7 UNC. The base diameter of the cylindrical boss (D1) likewise varies from 18 mm to 50 mm.<\/p>\n

Materials and Surface Finishes<\/h3>\n

The service life and corrosion resistance of the STAUFF Weld Plate for Single Clamps (Type SPAL – Heavy Series) depend on selecting the appropriate material for the operating environment. The coded catalogue options include uncoated carbon steel (W1) and phosphated carbon steel (W2), typically used as standard configurations depending on the size group. Zinc\/nickel-plated carbon steel (W3) is available for more aggressive environments. Extreme applications are covered by the stainless steel versions, available in V2A grade 1.4301 \/ 1.4305 (AISI 304 \/ 303), coded W4, and V4A grade 1.4401 \/ 1.4571 (AISI 316 \/ 316 Ti), coded W5.<\/p>\n

Summary Technical Table of the Main Features of the STAUFF Weld Plate for Single Clamps (Type SPAL – Heavy Series)<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Feature<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Product Type<\/td>\nWeld Plate for Single Clamps (Type SPAL)<\/td>\n<\/tr>\n
Series<\/td>\nHeavy Series<\/td>\n<\/tr>\n
Reference Standard<\/td>\nDIN 3015, Part 2<\/td>\n<\/tr>\n
Supported STAUFF Groups<\/td>\nFrom 3S to 12S<\/td>\n<\/tr>\n
Equivalent DIN Sizes<\/td>\nFrom 1 to 10<\/td>\n<\/tr>\n
Thread Types (G)<\/td>\nISO Metric (M) \/ Unified Coarse UNC (U)<\/td>\n<\/tr>\n
Metric Thread Sizes<\/td>\nM10, M12, M16, M20, M24, M30<\/td>\n<\/tr>\n
UNC Thread Sizes<\/td>\n3\/8-16, 7\/16-14, 5\/8-11, 3\/4-10, 7\/8-9, 1-1\/8-7, 1-1\/4-7<\/td>\n<\/tr>\n
Material W1<\/td>\nCarbon Steel, uncoated<\/td>\n<\/tr>\n
Material W2<\/td>\nCarbon Steel, phosphated<\/td>\n<\/tr>\n
Material W3<\/td>\nCarbon Steel, zinc\/nickel-plated<\/td>\n<\/tr>\n
Material W4<\/td>\nV2A Stainless Steel – 1.4301 \/ 1.4305 (AISI 304 \/ 303)<\/td>\n<\/tr>\n
Material W5<\/td>\nV4A Stainless Steel – 1.4401 \/ 1.4571 (AISI 316 \/ 316 Ti)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Product Codes<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
STAUFF Group<\/th>\nDIN Group<\/th>\nProduct Code (Metric Thread)<\/th>\nProduct Code (UNC Thread)<\/th>\n<\/tr>\n<\/thead>\n
3S<\/td>\n1<\/td>\nSPAL-3S-M-W2<\/td>\nSPAL-3S-U-W2<\/td>\n<\/tr>\n
4S<\/td>\n2<\/td>\nSPAL-4S-M-W2<\/td>\nSPAL-4S-U-W2<\/td>\n<\/tr>\n
5S<\/td>\n3<\/td>\nSPAL-5S-M-W2<\/td>\nSPAL-5S-U-W2<\/td>\n<\/tr>\n
6S<\/td>\n4<\/td>\nSPAL-6S-M-W2<\/td>\nSPAL-6S-U-W2<\/td>\n<\/tr>\n
7S<\/td>\n5<\/td>\nSPAL-7S-M-W2<\/td>\nSPAL-7S-U-W2<\/td>\n<\/tr>\n
8S<\/td>\n6<\/td>\nSPAL-8S-M-W1<\/td>\nSPAL-8S-U-W1<\/td>\n<\/tr>\n
9S<\/td>\n7<\/td>\nSPAL-9S-M-W1<\/td>\nSPAL-9S-U-W1<\/td>\n<\/tr>\n
10S<\/td>\n8<\/td>\nSPAL-10S-M-W1<\/td>\nSPAL-10S-U-W1<\/td>\n<\/tr>\n
11S<\/td>\n9<\/td>\nSPAL-11S-M-W1<\/td>\nSPAL-11S-U-W1<\/td>\n<\/tr>\n
12S<\/td>\n10<\/td>\nSPAL-12S-M-W1<\/td>\nSPAL-12S-U-W1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

The STAUFF Weld Plate for Single Clamps (Type SPAL – Heavy Series) is designed for mechanical fastening in strict compliance with DIN 3015,<\/span> Part 2.<\/span> Suitable for STAUFF Groups 3S to 12S,<\/span> it is available with ISO metric (M) or Unified UNC (U) thread configurations.<\/span> Available in carbon steel (uncoated,<\/span> phosphated,<\/span> zinc\/nickel-plated) and stainless steel (V2A,<\/span> V4A),<\/span> it ensures strength and durability in installations.<\/span> The available product codes are:<\/span> SPAL-3S-M-W2,<\/span> SPAL-3S-U-W2,<\/span> SPAL-4S-M-W2,<\/span> SPAL-4S-U-W2,<\/span> SPAL-5S-M-W2,<\/span> SPAL-5S-U-W2,<\/span> SPAL-6S-M-W2,<\/span> SPAL-6S-U-W2,<\/span> SPAL-7S-M-W2,<\/span> SPAL-7S-U-W2,<\/span> SPAL-8S-M-W1,<\/span> SPAL-8S-U-W1,<\/span> SPAL-9S-M-W1,<\/span> SPAL-9S-U-W1,<\/span> SPAL-10S-M-W1,<\/span> SPAL-10S-U-W1,<\/span> SPAL-11S-M-W1,<\/span> SPAL-11S-U-W1,<\/span> SPAL-12S-M-W1,<\/span> SPAL-12S-U-W1.<\/span><\/p>\n

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