Locating ring AC63ISO-4/FKM

Sealing element consisting of an inner ring and an O-ring. The ring ensures flange centering and acts as a support for the O-ring which provides the seal.

Available variants (items):

• AC63ISO-4/FKM — Materials: AISI 304 + FKM (Viton); Finish: Natural; DN: 63; A: 70 mm; B: 3.9 mm
• AC80ISO-4/FKM — AISI 304 + FKM (Viton); Natural; DN: 80; A: 83 mm; B: 3.9 mm
• AC100ISO-4/FKM — AISI 304 + FKM (Viton); Natural; DN: 100; A: 102 mm; B: 3.9 mm
• AC160ISO-4/FKM — AISI 304 + FKM (Viton); Natural; DN: 160; A: 153 mm; B: 3.9 mm
• AC200ISO-4/FKM — AISI 304 + FKM (Viton); Natural; DN: 200; A: 213 mm; B: 3.9 mm
• AC250ISO-4/FKM — AISI 304 + FKM (Viton); Natural; DN: 250; A: 261 mm; B: 3.9 mm
• AC320ISO-4/FKM — AISI 304 + FKM (Viton); Natural; DN: 320; A: 318 mm; B: 5.6 mm
• AC400ISO-4/FKM — AISI 304 + FKM (Viton); Natural; DN: 400; A: 400 mm; B: 5.6 mm
• AC500ISO-4/FKM — AISI 304 + FKM (Viton); Natural; DN: 500; A: 501 mm; B: 5.6 mm
• AC630ISO-4/FKM — AISI 304 + FKM (Viton); Natural; DN: 630; A: 651 mm; B: 5.6 mm
• AC63ISO-4/NBR — AISI 304 + NBR (Buna); Natural; DN: 63; A: 70 mm; B: 3.9 mm
• AC80ISO-4/NBR — AISI 304 + NBR (Buna); Natural; DN: 80; A: 83 mm; B: 3.9 mm
• AC100ISO-4/NBR — AISI 304 + NBR (Buna); Natural; DN: 100; A: 102 mm; B: 3.9 mm
• AC160ISO-4/NBR — AISI 304 + NBR (Buna); Natural; DN: 160; A: 153 mm; B: 3.9 mm
• AC200ISO-4/NBR — AISI 304 + NBR (Buna); Natural; DN: 200; A: 213 mm; B: 3.9 mm
• AC250ISO-4/NBR — AISI 304 + NBR (Buna); Natural; DN: 250; A: 261 mm; B: 3.9 mm
• AC320ISO-4/NBR — AISI 304 + NBR (Buna); Natural; DN: 320; A: 318 mm; B: 5.6 mm
• AC400ISO-4/NBR — AISI 304 + NBR (Buna); Natural; DN: 400; A: 400 mm; B: 5.6 mm
• AC500ISO-4/NBR — AISI 304 + NBR (Buna); Natural; DN: 500; A: 501 mm; B: 5.6 mm
• AC630ISO-4/NBR — AISI 304 + NBR (Buna); Natural; DN: 630; A: 651 mm; B: 5.6 mm
• AC63ISO-6/FKM — AISI 316 + FKM (Viton); Natural; DN: 63; A: 70 mm; B: 3.9 mm
• AC80ISO-6/FKM — AISI 316 + FKM (Viton); Natural; DN: 80; A: 83 mm; B: 3.9 mm
• AC100ISO-6/FKM — AISI 316 + FKM (Viton); Natural; DN: 100; A: 102 mm; B: 3.9 mm
• AC63ISO-A/FKM — Aluminium + FKM (Viton); Natural; DN: 63; A: 70 mm; B: 3.9 mm
• AC80ISO-A/FKM — Aluminium + FKM (Viton); Natural; DN: 80; A: 83 mm; B: 3.9 mm
• AC100ISO-A/FKM — Aluminium + FKM (Viton); Natural; DN: 100; A: 102 mm; B: 3.9 mm
• AC160ISO-A/FKM — Aluminium + FKM (Viton); Natural; DN: 160; A: 153 mm; B: 3.9 mm
• AC200ISO-A/FKM — Aluminium + FKM (Viton); Natural; DN: 200; A: 213 mm; B: 3.9 mm
• AC250ISO-A/FKM — Aluminium + FKM (Viton); Natural; DN: 250; A: 261 mm; B: 3.9 mm
• AC63ISO-A/NBR — Aluminium + NBR (Buna); Natural; DN: 63; A: 70 mm; B: 3.9 mm
• AC80ISO-A/NBR — Aluminium + NBR (Buna); Natural; DN: 80; A: 83 mm; B: 3.9 mm
• AC100ISO-A/NBR — Aluminium + NBR (Buna); Natural; DN: 100; A: 102 mm; B: 3.9 mm
• AC160ISO-A/NBR — Aluminium + NBR (Buna); Natural; DN: 160; A: 153 mm; B: 3.9 mm
• AC200ISO-A/NBR — Aluminium + NBR (Buna); Natural; DN: 200; A: 213 mm; B: 3.9 mm
• AC250ISO-A/NBR — Aluminium + NBR (Buna); Natural; DN: 250; A: 261 mm; B: 3.9 mm
• AC320ISO-A/NBR — Aluminium + NBR (Buna); Natural; DN: 320; A: 318 mm; B: 5.6 mm
• AC400ISO-A/NBR — Aluminium + NBR (Buna); Natural; DN: 400; A: 400 mm; B: 5.6 mm
• AC500ISO-A/NBR — Aluminium + NBR (Buna); Natural; DN: 500; A: 501 mm; B: 5.6 mm
• AC630ISO-A/NBR — Aluminium + NBR (Buna); Natural; DN: 630; A: 651 mm; B: 5.6 mm

Characteristics / technical specifications

• Function: sealing element for ISO flanges; inner ring for centering + O-ring for sealing
• Compatible flange lines: ISO-K, ISO-F, ISO-Q
• Product type: Seals
• Inner ring: available in AISI 304, AISI 316 or Aluminium
• O-rings: available in Fluoroelastomer (FKM / Viton) and Nitrile-butadiene (NBR / Buna)
• Finish: Natural
• Sizes covered: range available from DN 63 up to DN 630 (specific values listed in the items above)
• Key dimensions: external diameter A (varies by DN, e.g. DN63 → A 70 mm; DN320 → A 318 mm; DN630 → A 651 mm); seal thickness B: typically 3.9 mm for DNs up to 250, 5.6 mm for DNs 320 and above