Is there an O-ring equivalence table for SP and Apeks reg's?

[Abdullah]

I was wondering if anyone knows of an o-ring equivilents table for SP and Apeks regs. In light of how much the service kits cost, and the PITA to obtain them at times, having a list of which commercially available O-rings apply to which part number would be invaluable. I'd like to be able to go buy the o-rings from a parts house rather than from the reg manufacturers.

Is there such a thing?

 

[elan]

Yes there is one for SP just search the forums for scubapro o-ring size (DIY forum iirc) and you will find wealth of info on the sizes along with diagrams annotated with sizes

 

[Zung]

This is the topic.

 

[steveharriss]

Here is the Apeks version that I have. All 80 shore unless otherwise noted. PM me if you want it as a spreadsheet...unless I work out how to append it here

Apeks ID	BS (in brackets for Metric)	Cross Section	Inner diam.	SCUBA Application Seal
AP1157	003	1/16	1/16	High-Pressure Hose/SPG swivel
AP6403	004	1/16	5/64	High-Pressure Hose/SPG swivel (less common)	2mm x 1.78mm
AP1299	006	1/16	1/8	Apeks HP seat (1st stage)	3mm x 1.78mm
AP1564	006	2.9mm	1.78mm	Power Inflator spindle (Polyurethane)	70 Shore
AP1282	007				4mm x 1.78mm
AP1154	010	1/16	1/4	Low-Pressure Hose/2nd Stage Regulator Cylinder Valve Stem Apeks crown (2nd stage)	6mm x 1.78mm
AP1409	011	1/16	5/16	Standard Low-Pressure Port/Hose (3/8 UNF) Apeks adjusting screw (2nd stage) Apeks conical filter (1st Stage) Apeks FSR HP crown (1st stage) Power Inflator quick disconnect oring	7.6mm x 1.78mm
AP1445	012	1/16	3/8	High-Pressure Port/Hose (7/16 UNF) Manifold and Manifold Port Plugs	9.5mm x 1.78mm
	012	1/16	3/8	Power Inflator cylinder inner oring (Buna)
AP1410	013	1/16	7/16	Large Low-Pressure Port/Hose (1/2 UNF) Apeks balance plug inner (1st stage)	11mm x 1.78mm
AP1159	014	1/16	1/2	Standard Yoke Regulator/K-valve Apeks ATX adjuster screw (2nd stage)	12.5mm x 1.78mm
AP1267	015	1/16	9/16	Apeks value spindle (2nd stage) Cylinder Valve Bonnet Nut	14mm x 1.78mm
AP1298	017				17.4mm 1.78mm
AP4089	018				19mm x 1.78mm
AP1438	019	1/16	13/16	Apeks Venturi (2nd stage) Apeks turret bolt (1st stage)	20.5mm x 1.78mm
AP1420	024				28mm x 1.78mm
AP1420	024	1/16	1-1/8	Apeks Turret (1st stage)
AP1166	111	3/32	7/16	Apeks DIN Regulator/Valve Apeks Yoke spare (2nd stage) Note:Yoke valves often use BS112 or BS014	11mm x 2.62mm
	112	3/32	1/2	Power Inflator cylinder outer oring (Buna)
AP1405	113				14mm x 2.62mm
AP1505	114				15.5mm x 2.62mm
AP1628	115				17.4mm x 2.62mm
AP1456	117				20.5mm x 2.62mm
AP1418	118				22mm x 2.62mm
AP1277	119				23.5mm x 2.62mm
AP7502	610				70 Shore
AP1300	15x1.5 (0151-16)	1.5mm	15mm	Apeks HP balance plug outer (1st stage)	BS 15.1mm x 1.6mm
AP5711	2.5x1 (607)	1mm	2.5mm	Apeks ATX adjuster screw nib (2nd stage)	BS 2.8mm x 1.02mm
	204	1/8	3/8	Power Inflator oral inflate oring (Buna)
AP1278	213/214?				23.5mm x 3.53mm
	214	1/8	1	Cylinder with Large Neck/Valve (3/4 NPS - All Aluminum, most Steel cylinders)
AP2041	2x1 (606)	1mm	2mm	Apeks shuttle valve (2nd stage)	BS 2mm x 1.02mm

 

[herman]

The tank/yoke/din orings above really should be 90 durometer, 80 will work but is more prone to extrusion and failure..

 

[rsingler]

Don't remember where I acquired it, but there is an actual Scubapro document listing their part number and actual o-ring size (in mm), duro and material. From the o-ring size, the jump to closest AS568 equivalent is easy. I have discovered a few discrepancies with the homemade summary chart in the thread posted by Zung above. The homemade chart has the benefit of SB'ers discovering what works best, but you should be aware of the discrepancy.
I'll try and find it and post it later tonite.

 

[rsingler]

Scubapro O-ring Specs

Here is a document that I KNOW I must have copied from someone here at Scubaboard. Whomever it was, please take credit!
I've used this MANY times when trying to determine exactly which aftermarket o-ring is best suited for one of my SP regs.

I apologize to whomever it was I "benchmarked" this from, who I'm not acknowledging out of forgetfulness.
If you need this in .pdf format, just PM me. Sorry, it's not searchable pdf.

 

[CDPanama]

Here is the Apeks version that I have. All 80 shore unless otherwise noted. PM me if you want it as a spreadsheet...unless I work out how to append it here

Apeks ID	BS (in brackets for Metric)	Cross Section	Inner diam.	SCUBA Application Seal
AP1157	003	1/16	1/16	High-Pressure Hose/SPG swivel
AP6403	004	1/16	5/64	High-Pressure Hose/SPG swivel (less common)	2mm x 1.78mm
AP1299	006	1/16	1/8	Apeks HP seat (1st stage)	3mm x 1.78mm
AP1564	006	2.9mm	1.78mm	Power Inflator spindle (Polyurethane)	70 Shore
AP1282	007				4mm x 1.78mm
AP1154	010	1/16	1/4	Low-Pressure Hose/2nd Stage Regulator Cylinder Valve Stem Apeks crown (2nd stage)	6mm x 1.78mm
AP1409	011	1/16	5/16	Standard Low-Pressure Port/Hose (3/8 UNF) Apeks adjusting screw (2nd stage) Apeks conical filter (1st Stage) Apeks FSR HP crown (1st stage) Power Inflator quick disconnect oring	7.6mm x 1.78mm
AP1445	012	1/16	3/8	High-Pressure Port/Hose (7/16 UNF) Manifold and Manifold Port Plugs	9.5mm x 1.78mm
	012	1/16	3/8	Power Inflator cylinder inner oring (Buna)
AP1410	013	1/16	7/16	Large Low-Pressure Port/Hose (1/2 UNF) Apeks balance plug inner (1st stage)	11mm x 1.78mm
AP1159	014	1/16	1/2	Standard Yoke Regulator/K-valve Apeks ATX adjuster screw (2nd stage)	12.5mm x 1.78mm
AP1267	015	1/16	9/16	Apeks value spindle (2nd stage) Cylinder Valve Bonnet Nut	14mm x 1.78mm
AP1298	017				17.4mm 1.78mm
AP4089	018				19mm x 1.78mm
AP1438	019	1/16	13/16	Apeks Venturi (2nd stage) Apeks turret bolt (1st stage)	20.5mm x 1.78mm
AP1420	024				28mm x 1.78mm
AP1420	024	1/16	1-1/8	Apeks Turret (1st stage)
AP1166	111	3/32	7/16	Apeks DIN Regulator/Valve Apeks Yoke spare (2nd stage) Note:Yoke valves often use BS112 or BS014	11mm x 2.62mm
	112	3/32	1/2	Power Inflator cylinder outer oring (Buna)
AP1405	113				14mm x 2.62mm
AP1505	114				15.5mm x 2.62mm
AP1628	115				17.4mm x 2.62mm
AP1456	117				20.5mm x 2.62mm
AP1418	118				22mm x 2.62mm
AP1277	119				23.5mm x 2.62mm
AP7502	610				70 Shore
AP1300	15x1.5 (0151-16)	1.5mm	15mm	Apeks HP balance plug outer (1st stage)	BS 15.1mm x 1.6mm
AP5711	2.5x1 (607)	1mm	2.5mm	Apeks ATX adjuster screw nib (2nd stage)	BS 2.8mm x 1.02mm
	204	1/8	3/8	Power Inflator oral inflate oring (Buna)
AP1278	213/214?				23.5mm x 3.53mm
	214	1/8	1	Cylinder with Large Neck/Valve (3/4 NPS - All Aluminum, most Steel cylinders)
AP2041	2x1 (606)	1mm	2mm	Apeks shuttle valve (2nd stage)	BS 2mm x 1.02mm

hi steve i want a want spreadsheet,pls

 

[rsingler]

A BS606 is not a 1x2mm.
Slight difference, but measurably different friction with the balance chamber.

A BS4518 0151-16 is not a 1.5x15.
Yeah, these work in many applications, but don't spread this misinformation.

Buy a kit and measure the damned o-rings.