Print Page - 13xx Valve O-Ring Size? (Stock Alum & Brass Valves)

Title: 13xx Valve O-Ring Size? (Stock Alum & Brass Valves)
Post by: 0351_Vet on February 29, 2012, 11:50:13 PM

I should know this but, I'm drawing a blank. I want to order Polyurethane O-Rings but for got what size they are?
Any help would be appreciated. Thanks.

Title: Re: 13xx Valve O-Ring Size? (Stock Alum & Brass Valves)
Post by: 0351_Vet on March 01, 2012, 02:43:22 AM

Nobody...? ??? ??? ???

Title: Re: 13xx Valve O-Ring Size? (Stock Alum & Brass Valves)
Post by: breakfastchef on March 01, 2012, 03:15:37 AM

1377 valve outer o-ring is 111. Inner valve o-ring is 012.

I am using Viton Duro 75; they are working fine.

Title: Re: 13xx Valve O-Ring Size? (Stock Alum & Brass Valves)
Post by: Bentong on March 01, 2012, 03:18:56 AM

OK, In case you need both o-rings for the valve
inner -> 012
outter -> 111
Flat top -> 012

I'm only using buna 70 for the valve and never have problem for the past 4 yrs and used buna70 - 012 for the flat top at first then tried buna90 and it lasted 2xlonger. IMHO urethane is overkill for static o-ring application. :-*

Title: Re: 13xx Valve O-Ring Size? (Stock Alum & Brass Valves)
Post by: 0351_Vet on March 01, 2012, 04:03:50 AM

Quote from: Bentong on March 01, 2012, 03:18:56 AM
OK, In case you need both o-rings for the valve
inner -> 012
outter -> 111
Flat top -> 012

I'm only using buna 70 for the valve and never have problem for the past 4 yrs and used buna70 - 012 for the flat top at first then tried buna90 and it lasted 2xlonger. IMHO urethane is overkill for static o-ring application. :-*

I am using Buna 90, Just because of tube thread issues on PCP. Thanks for the info.

Crosman Air Pistol Owners Forum

Crosman air pistol - General => Crosman air pistol - General discussion => Topic started by: 0351_Vet on February 29, 2012, 11:50:13 PM