metal-to-metal

WILLIAMSONs metal to metal sealed trunnion ball valve is in general of the front ball sealing structure.

The valve bonnet may now be removed. There may be a slight leakage, as the metal-to-metal backseating does not provide a drip-tight seal.

Metal-to-metal seating means not best choice for frequent operation. Bubble-tight seating should not be expected with metal-to-metal design.

A step on the valve plug has now been back-seated against the upper portion of the valve body (metal-to-metal).

Wear occurs through metal-to-metal contact, acidic corrosion, rusting, and abrasive action of the oil's contaminant load.

Valves feature as standard secondary metal-to-metal seal in the event of the primary seat being destroyed by fire.

The oil forms a protective coating on the metal surface and prevents a metal-to-metal contact, thus reduction and minimizing wear.

A multitude of mechanical parts turn or rub in metal-to-metal contact, separated only by a thin oil film.

It yields a high degree of extreme pressure characteristics preventing metal-to-metal seizure.

It covers the surfaces of the moving parts to prevent metal to-metal contact and undue wear of the parts.

The 4 off encapsulated Piston wear pads also ensure no metal to metal contact thus providing low friction travel.

Actually, the operation of plain bearings doesn't involve metal to metal contact ! !

Metal-to-metal contact is controlled by proper viscosity selection and use of film-forming compounds.

Friction and wear are caused by metal-to-metal contact of the moving parts.

As you can see from Fig. 1, the feed throat has a metal-to-metal connection that is very effective at transferring heat.

forming at least one metal-to-metal adhesive on the semiconductor lamination layer by using a printing technique;

standard test method for creep properties of adhesives in shear by compression loading metal - to - metal

The method for determination of strength properties of adhesive in shear by tension loading(Metal to metal)

Test method for resistance of adhesive bonds to chemical reagents - Metal to metal

Test method of creep properties of adhesive in shear by tension loading (metal to metal)

Test method of cleavage strength of adhesive (metal to metal)

Metal to Metal or Bubble Tight Resilient Seats

Mud valve , union type, metal to metal seal