Hollow Hex Pipe Plug with Sealing Ring

The surface treatment of the Xiaoguo® Hollow Hex Pipe Plug with Sealing Ring is diverse: galvanization, blackening, nickel plating, etc., which effectively prevents rust and corrosion and is suitable for outdoor or humid working conditions. All the products in stock can be provided as free samples.

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Product Description

A reliable seal is the most critical function of Hollow Hex Pipe Plug with Sealing Ring. Sealing operations can be mainly classified into the following two categories:

（1）Gasket seal (parallel threads)

Principle:The replaceable sealing gasket is compressed by the screw plug step to achieve end face sealing

Core components:Copper washer, ED ring, O-ring, aluminum washer

（2）Thread interference seal (tapered thread)

Principle:Relying on the interference fit inherent in the taper thread, metal-to-metal sealing is achieved directly

Core components:No gasket, but can be supplemented with sealant or tape

Hollow Hex Pipe Plug with Sealing Ring

Special sealing technology

（1）Pre-applied Thread Sealant

Apply a thin layer of microcapsule sealant (such as the pre-coating technology of Loctite) on the threads of the Hollow Hex Pipe Plug with Sealing Ring.

During installation, the adhesive layer was compressed and cracked, and after curing, it formed a seal and provided anti-loosening function.

Suitable for parallel threads or conical threads, it can replace adhesive tape or washers.

（2）Nylon anti-loosening sealing ring

Attach a small piece of nylon material to one side of the thread.

During insertion, the nylon is compressed, generating friction to prevent loosening, and also providing a certain degree of sealing function.

Mainly used in low-pressure situations where anti-loosening is required.

（3）Magnetic + Sealing Integrated

The magnetic Hollow Hex Pipe Plug with Sealing Ring usually has magnets built into its head. The sealing method still uses gasket sealing (parallel threads) or conical thread sealing, and there is no conflict between the two.

Hollow Hex Pipe Plug with Sealing Ring

PARTNO	THREAD	ED CAPTIVE	DIMENSIONS
PARTNO	E	ED CAPTIVE	A	L	S	D	N.M
TMN08	M8x1	ED-08	8	12	4	12	8-10
TMN10	M10x1	ED-10	8	12	5	14	10-12
TMN12	M12x1.5	ED-12	12	17	6	17	15-25
TMN14	M14x1.5	ED-14	12	17	6	19	20-35
TMN16	M16x1.5	ED-16	12	17	8	22	25-40
TMN18	M18x1.5	ED-18	12	17	8	24	30-45
TMN20	M20x1.5	ED-20	14	19	10	26	35-50
TMN22	M22x1.5	ED-22	14	19	10	27	40-70
TMN24	M24x1.5	ED-24	14	19	10	29	40-70
TMN26	M26x1.5	ED-26	16	21	12	32	60-100
TMN27	M27×2	ED-27	16	21	12	32	100-135
TMN33	M33x2	ED-33	16	22	17	40	150-240
TMN42	M42x2	ED-42	16	22	22	50	250-360
TMN48	M48x2	ED-48	16	22	24	55	300-400
TMN60	M60x2	ED-60	18	26	27	70	380-450

Sealing Recommendation

For most standard applications (automobiles, general machinery): Select DIN 910 Hollow Hex Pipe Plug with Sealing Ring + copper washers, which are simple, reliable and have the lowest cost.

For high-pressure or frequent disassembly: Choose ED sealing rings, which can be reused and have high sealing pressure.

For ultra-high pressure or compact spaces: Select conical threads (NPT/BSPT) + sealant.

For corrosive or high-temperature environments: Prioritize stainless steel screws + copper washers or FKM ED rings.

If you need to recommend a specific sealing solution for a particular customer scenario, please provide the details and we will give you an accurate suggestion.