Air Brake Valves Archives - RV Parts & Accessories Online | Buy Camper Parts https://www.rvpartscenter.com/shop-by-categories/automotive/velvac-truck-parts/air-brake-valves/ Thu, 13 Nov 2025 14:47:07 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 https://www.rvpartscenter.com/wp-content/uploads/2024/12/rvlogo.png Air Brake Valves Archives - RV Parts & Accessories Online | Buy Camper Parts https://www.rvpartscenter.com/shop-by-categories/automotive/velvac-truck-parts/air-brake-valves/ 32 32 Air Tractor Control Kits by Velvac https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959-44964-44967/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959-44964-44967/#respond Fri, 22 Dec 2023 22:49:52 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959-44964-44967/ Velvac, Air Tractor Control Kits

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Air Tractor Control Kits

Kits add hand and foot control to trucks with pre-FMVSS 121 air brakes hauling an air brake trailer (for trucks with FMVSS 121 air brakes, consult the truck manufacturer)

Hose assembly jumper lines and support springs included with kit (kit No. 131012 only)

Hand control valve included (except for Part No. 131016). This normally closed valve has 1/4″ FPT inlet/ outlet/exhaust ports and an 1/8″ FPT pressure gauge port (180 psi maximum supply pressure)- hand control valve also sold separately

NOT FOR ABS APPLICATIONS

 

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959-44964-44967/feed/ 0 Quick release valve, Velvac 034012 https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44923-44925/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44923-44925/#respond Fri, 22 Dec 2023 22:38:15 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44923-44925/ Velvac, QR-1C Style

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Direct replacement for Bendix 289714 & Midland KN32041

1/4″ NPT supply and balance ports

(2) 3/8″ NPT delivery ports

(2) 11/32″ diameter mounting holes at 1-1/2″ on center

Supply and delivery differential is 1 psi maximum

 

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44923-44925/feed/ 0 Limiting and Quick Release Valves by Velvac https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959-44964/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959-44964/#respond Fri, 22 Dec 2023 22:26:59 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959-44964/ Velvac, Limits front axle service brake application by 50% and serves as a quick release valve for that axle - commonly found on pre-121 (pre-1985) vehicles

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Replaces Bendix LQ-2 quick release valve part number 229505

3/8″ NPT supply, delivery and exhaust ports 

1/4″ NPT control port

19/32″ diameter mounting holes at 1-1/2″ on center

Replaces Bendix LQ-2 quick release valve part number 229505 

Limits front axle service brake application by 50% and serves as a quick release valve for that axle – commonly found on pre-121 (pre-1985) vehicles 

3/8″ NPT supply, delivery and exhaust ports 

1/4″ NPT control port 

19/32″ diameter mounting holes at 1-1/2″ on center

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959-44964/feed/ 0 In-Line Quick Release Valves by Velvac https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959/#respond Fri, 22 Dec 2023 22:01:29 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959/ Velvac, Suitable for use on double or triple trailers

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Speeds up release of trailer service brakes when installed on service side gladhand 

Speeds up application of trailer parking brakes when installed on emergency side gladhand

Flow Rate: Forward – 9.0 SCFM at 2 psi; Exhaust – 8.0 SCFM at 2 psi 

1/2″ – 14 MPT with Vibraseal thread sealer one end, 1/2″ – 14 FPT other end 

1-1/2″ diameter x 3-1/2″ long 

Durable zinc die cast bodies

 

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954-44959/feed/ 0 Quick Release Valves by Velvac https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954/#respond Wed, 20 Dec 2023 23:25:23 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954/ Velvac, Replaces Bendix QR-1 quick release valve

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Replaces Bendix QR-1 quick release valve 

3/8″ NPT exhaust port 

(2) 11/32″ mounting holes at 1-1/2″ on center

Cracking pressure of 1 psi

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949-44954/feed/ 0 Trailer Spring Brake Valves by Velvac https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949/#respond Wed, 20 Dec 2023 23:05:58 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949/ Velvac, Replaces Bendix SR-2 trailer spring brake valve

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Replaces Bendix SR-2 trailer spring brake valve 

1/4″ NPT service reservoir (2) and trailer supply ports

(4) 3/8″ NPT delivery ports 

1/4″ NPT trailer service port on Part No. 034031

Replaces Bendix SR-4 trailer spring brake valve

1/4″ NPT reservoir charging (2), trailer supply and trailer service ports 

(4) 3/8″ NPT delivery ports

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944-44949/feed/ 0 Foot Valves by Velvac https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944/#respond Tue, 19 Dec 2023 23:50:34 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944/ Velvac, Replaces Bendix E-3 brake valve part number 277863 & Midland KN22100

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Replaces Bendix E-3 brake valve part number 277863 & Midland KN22100 

1/2″ NPT supply and delivery ports

(2) 1/4″ NPT auxiliary supply ports Replaces Bendix E-6 brake valve part number 286171 & Midland KN22140 and KN22150 

3/8″ NPT supply and delivery ports

 

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939-44944/feed/ 0 Spring Brake Valve, Velvac 034030 https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44924-44947/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44924-44947/#respond Tue, 19 Dec 2023 23:46:54 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44924-44947/ Velvac, SR-1 Style

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Direct replacement for Bendix 286364

1/4″ NPT reservoir, control, supply and delivery ports

55 psi reservoir trip pressure

Bracket mounted

 

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44924-44947/feed/ 0 Trailer Spring Brake, Velvac 034035 https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44924/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44924/#respond Tue, 19 Dec 2023 23:44:46 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44924/ Velvac, SR-5 Style, 3/4" MPT Reservoir Mounting Port

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Direct replacement for Bendix 065437

3/4″ MPT reservoir mounting port

1/4″ NPT service/spring brake reservoir, service, trailer supply and trailer service ports

(4) 3/8″ NPT delivery ports

Anti-compounding

 

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44924/feed/ 0 Air Governors by Velvac https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939/#respond Tue, 19 Dec 2023 23:36:21 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939/ Velvac, Individually boxed

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Replaces Bendix D-2 air governor 

Factory preset opening and closing pressures of 100 to 120 psi 

(6) 1/8″ NPT ports and two mounting holes 

Mounting gasket and (4) 1/8″ socket head pipe plugs included 

High temperature governor designed with high temperature withstanding O-rings

 

 

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933-44939/feed/ 0 Relay Emergency Valves by Velvac https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933/#respond Tue, 19 Dec 2023 23:03:59 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933/ Velvac, Crack prespressure sure 3 psi

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1/4″ NPT delivery and service control ports 

1/2″ NPT supply port 

1/4 NPT service and emergency inlets 

(4) 3/8 NPT delivery ports

3/4 NPT reservoir 

Crack prespressure sure 3 psi 

1/4 NPT emergency and service ports 

(4) 3/8 NPT delivery ports 

3/4 NPT reservoir port

 

 

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]]> https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44912-44915-44925-44928-44933/feed/ 0 Multi-Function Trailer (RT-4 Style), Velvac 034063 https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44923-44924-44937/ https://www.rvpartscenter.com/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44923-44924-44937/#respond Mon, 18 Dec 2023 21:51:50 +0000 https://quickfix10.com/rvpartscenter_wp/product/20599-05-trimark-two-point-door-lock-4-pack-44805-44907-44908-44909-44911-44918-44921-44922-44923-44924-44937/ Velvac, RT-4 Style, 3/8" NPT Trailer Supply & Control Ports, 1/2" NPT & 3/8" NPT Reservoir Ports, (4) 3/8" NPT Delivery Ports

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Direct replacement for Midland KN26000

3/8″ NPT trailer supply and control ports

1/2″ NPT and 3/8″ NPT reservoir ports

(4) 3/8″ NPT delivery ports

PPV closing pressure at 55 psi

 

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