Slowing down hydraulic snowblower controls

[old and tired]

My needle valve works in both directions, so only needed 2 of them... there are ones that only work in one direction.

 

[ptsg]

There is usually an adapter between the hose and the actuator (motor or cylinder).

What I've done in the past, was to partially tap the hole in the adapter, then just use set screws of the same thread with a very small hole drilled (this can be drilled till you find the sweet spot or even do various set screws with difference hole sizes).

Finally install the set screw in the adapter, which will bottom out on the thread, hence why it's a partial thread and won't go all the way through, so it's locked in place. There is not real need for any thread locker or sealant.

 

[sailorman3]

My needle valve works in both directions, so only needed 2 of them... there are ones that only work in one direction.

I’m unable to find a bidirectional needle vale in any hydraulic shops in my area and can’t seem to find one on line either. The ones that show bidirectional have only one arrow on them. I already ordered one but I had to send it back because it wouldn’t work.

 

[oldnslo]

A simple needle valve restricts in both directions and may or may not have any arrows. A flow control that restricts in one direction and free flows the other will typically have an arrow showing direction of controlled flow.

 

[kennyd]

While not convenient or cheap for you to get in Canada, we sell a variety of simple fixed flow restrictors.

Hydraulic Flow Restrictors - BoltOnHooks LLC

www.boltonhooks.com

 

[sailorman3]

A simple needle valve restricts in both directions and may or may not have any arrows. A flow control that restricts in one direction and free flows the other will typically have an arrow showing direction of controlled flow.

No that is incorrect. A needle valve is designed to restrict flow in only one direction unless it is a bidirectional needle valve. The arrows are meant so it is installed in the direction of flow.

 

[bdhsfz6]

I have a cylinder on the deflector and a motorized chute rotator on my Woods SS74 PTO snow thrower. I use these inexpensive .045 restrictors on both hoses and they work fine:

Universal Apache Steel 3/8 in. D X 3/8 in. D Hydraulic Adapter 1 pk 39004277 | Zoro

Order Universal Apache Steel 3/8 in. D X 3/8 in. D Hydraulic Adapter 1 pk, 39004277 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.

www.zoro.com

 

[sailorman3]

I have a cylinder on the deflector and a motorized chute rotator on my Woods SS74 PTO snow thrower. I use these inexpensive .045 restrictors on both hoses and they work fine:

View attachment 4676639

Universal Apache Steel 3/8 in. D X 3/8 in. D Hydraulic Adapter 1 pk 39004277 | Zoro

Order Universal Apache Steel 3/8 in. D X 3/8 in. D Hydraulic Adapter 1 pk, 39004277 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.

www.zoro.com

 

[sailorman3]

That is exactly what I am looking for. Unfortunately the link is not working for me.

 

[ruffdog]

I have a cylinder on the deflector and a motorized chute rotator on my Woods SS74 PTO snow thrower. I use these inexpensive .045 restrictors on both hoses and they work fine:

View attachment 4676639

Universal Apache Steel 3/8 in. D X 3/8 in. D Hydraulic Adapter 1 pk 39004277 | Zoro

Order Universal Apache Steel 3/8 in. D X 3/8 in. D Hydraulic Adapter 1 pk, 39004277 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.

www.zoro.com

That is exactly what I am looking for. Unfortunately the link is not working for me.

I use the same type restrictor to slow the cylinder on my grapple. You only need one in one of the hoses.

Links:

Pardon Our Interruption

Pardon Our Interruption