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What are the replacement part numbers for old IR400/IR401/IR402/IR412 series precision regulators?

For the IR400-02/03/04□□: IR3000-02/03/04□□-A
For the IR401-02/03/04□□: IR3010-02/03/04□□-A
For the IR402-02/03/04□□: IR3020-02/03/04□□-A
For the IR412-02/03/04□□: IR3120-02/03/04□□ (IR-A series air operated regulators will be available at a later date.)
Note) Select option “H” when panel mounting the product.

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://smccatalog.partbuilder.smcpneumatics.com/support/faq/en-jp/?ca_id=vacuum-regulators&fa_id=11160

PAX1212-02

Body Material: 2 [SCS14 (Stainless Steel)], Thread: Rc(PT), Port Size: 02 (1/4)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/PAX1212-02

PAX1212-N02

Body Material: 2 [SCS14 (Stainless Steel)], Thread: N (NPT), Port Size: 02 (1/4)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/PAX1212-N02

PAX1212-N02-N

Body Material: 2 [SCS14 (Stainless Steel)], Thread: N (NPT), Port Size: 02 (1/4), Option: N (Silencer)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/PAX1212-N02-N

PAX1212-02-N

Body Material: 2 [SCS14 (Stainless Steel)], Thread: Rc(PT), Port Size: 02 (1/4), Option: N (Silencer)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/PAX1212-02-N

PAX1212-T02

Body Material: 2 [SCS14 (Stainless Steel)], Thread: T (NPTF), Port Size: 02 (1/4)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/PAX1212-T02

PAX1212-T02-N

Body Material: 2 [SCS14 (Stainless Steel)], Thread: T (NPTF), Port Size: 02 (1/4), Option: N (Silencer)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/PAX1212-T02-N

PAX1212-F02

Body Material: 2 [SCS14 (Stainless Steel)], Thread: F [G(PF)], Port Size: 02 (1/4)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/PAX1212-F02

VBA11A-T02N-Z

Made to Order: Standard, Body Size: 11A (1/4, Handle-operated Type, Pressure Increase Ratio 2 to 4 Times), Thread Type: T (NPTF), Port Size: 02 (1/4), Option: N (Silencer), Semi-standard: Z (Display Units for Product Nameplate & Pressure Gauge: psi)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/VBA11A-T02N-Z

56-VBA10A-T02GN-Z

Made to Order: 56 [CE Explosion-proof Directive (ATEX): Category 3GD], Body Size: 10A (1/4, Handle-operated Type, Pressure Increase Ratio Twice), Thread Type: T (NPTF), Port Size: 02 (1/4), Option: GN [Pressure Gauge (2 pcs.), Silencer], Semi-standard: Z (Display Units for Product Nameplate & Pressure Gauge: psi)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/56-VBA10A-T02GN-Z

VBA10A-N02GS-Z

Made to Order: Standard, Body Size: 10A (1/4, Handle-operated Type, Pressure Increase Ratio Twice), Thread Type: N (NPT - Made to Order), Port Size: 02 (1/4), Option: GS [Pressure Gauge (2 pcs.), High Noise Reduction Silencer], Semi-standard: Z (Display Units for Product Nameplate & Pressure Gauge: psi)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/VBA10A-N02GS-Z

56-VBA11A-N02-Z

Made to Order: 56 [CE Explosion-proof Directive (ATEX): Category 3GD], Body Size: 11A (1/4, Handle-operated Type, Pressure Increase Ratio 2 to 4 Times), Thread Type: N (NPT - Made to Order), Port Size: 02 (1/4), Option: None, Semi-standard: Z (Display Units for Product Nameplate & Pressure Gauge: psi)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/56-VBA11A-N02-Z

VBA11A-N02GLN-Z

Made to Order: Standard, Body Size: 11A (1/4, Handle-operated Type, Pressure Increase Ratio 2 to 4 Times), Thread Type: N (NPT - Made to Order), Port Size: 02 (1/4), Option: GLN(G + LN), Semi-standard: Z (Display Units for Product Nameplate & Pressure Gauge: psi)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/VBA11A-N02GLN-Z