SKU: 18279621744

Airval - Hercules Full Shield (3H-25H2-D4H)

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Description

Airval - Hercules Full Shield (3H-25H2-D4H)MAINTAINED MOMENTARY PNEUMATIC CONTROL LARGE INDUSTRIAL DESIGN MATERIALS OF CONSTRUCTION: Internal Valve is constructed of a Non Ferrous body, Stainless steel plunger and Teflon coated buna N O rings Air flows when plunger is depressed, stops flowing when plunger is released and exhausts back pressure on output side Air exhausts around plunger Plunger can be depressed flush with valve body without damage to valve Standard 1 8 27 N. P. T. input and

MAINTAINED/MOMENTARY PNEUMATIC CONTROL

LARGE INDUSTRIAL DESIGN

   

MATERIALS OF CONSTRUCTION:

• Internal Valve is constructed of a Non-Ferrous body, Stainless steel plunger and Teflon coated buna-N O-rings

• Air flows when plunger is depressed, stops flowing when plunger is released and exhausts back pressure on output side

• Air exhausts around plunger

• Plunger can be depressed flush with valve body without damage to valve

• Standard 1/8-27 N.P.T. input and output ports

• Filtered and lubricated air supply is required for best operation

• Line pressure up to 150 P.S.I.

• Robust cast iron housing


FEATURES & BENEFITS:

• Designed for long life operation

• Full shield or OX shield covering treadle

• 3 Holes provided for rigid mounting to floor or equipment


OPTIONS:

• Hercules AirVal also available as a 3-way in either single or 2-stage versions on special order

• 2 Stage models available

• Momentary and maintained versions available

 

  Warning: This Product can expose you to chemicals including Nickel, which is known to the sate of California to cause cancer and birth defects or other reproductive harm. For more information please visit www.p65warnings.ca.gov

 

Dimensions

SIZE (HxWxD):

4.37 x 5.87 x 9.00 in.

WEIGHT:

7.51 lbs.

 

Description Air Flow at 100 P.S.I Exhaust at 100 P.S.I. Operating Force Ports 1/8-27 N.P.T.

3-Way Maintained

2 Stage

30. C.F.M.

 

25 C.F.M.

 

19 Pounds

Exterior Housing

 

View Data Sheet - Link to data sheet

Replacement Parts - 3-25H2-SI

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 18279621744

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Greg from MidW
Massapequa, US
★★★★★ 3
Does the job but dangerous to walk with!
Does the job but dangerous to walk with: foot is sliding inside the sock if the foot was treated with cream or lotion prior. It is uncomfortable to sleep with but a necessary hurdle to heal your heels!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
T
Verified Purchase
Texgurl
Los Angeles, US
★★★★★ 4
Does the trick
Bought it with urea cream for my senior dad who was diabetes. Careful with it, it will tear
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
The really work!
Bought these or a friend with severely dry cracked feet. The change was significant and immediate. They wore them around the house for a day and that night they could already feel the difference.
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Reviewed in the United States on January 12, 2026
L
Lina
Belleville, US
★★★★★ 5
Fabulously bizarre and effective
These silicone socks have to be the strangest item I have ever ordered from Amazon. However strange they are, I was pleasantly surprised with them. My order came with two pairs, and I took one pair out to wash before use. I laughed at handling them then because they were a cross between hospital socks and leftover mannequin skin…trippy. The socks dried fast, so I put on foot lotion and put the socks on. The socks are beige skin tones that cover the entire foot up to the ankle, basically booties. The silicone is very soft and makes putting on and taking off the socks easy. They are also surprisingly easy to walk around in because the bottoms have grips, again, like hospital socks. I walked on tile, hardwood, and carpet with no slipping. The booties also stayed in place with no issues. I was concerned my feet would sweat, but that didn't happen. I was able to wear them for 3 hours without sweaty feet. When I took them off, my feet were a lot more soft than before or if I had used regular socks. For reference, my feet are not terrible, but the skin around my toes is dry and peeling from my picking(gross, I know). The socks I got are a size large, which worried me because they are big, but the site said for my shoe size (9) that's what I should order, and they were right. They are the perfect size and stretchy for room. I can't believe how cool and well-thought-out these socks are, on top of working. Honestly, these are among the top 20 favorite items I've ordered from Amazon. They may look incredibly strange, and they are, but they work wonders.
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Reviewed in the United States on June 5, 2025
A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 3
Not well made
I have used these for 2 weeks now and one of them has a hole in the sole... I won't ever buy them again
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Reviewed in the United States on July 15, 2025

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