M25 x 1.5 (male) to M20 x 1.5 (female) Thread Reducer: 316 Stainless Steel

M25 to M20 Thread Reducer: 316 Stainless Steel (ATEX)

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Part Number: R1.25.20.S.NT

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ATEX Certified Explosion Proof Thread Reducer

Reducers are used where the thread size of the cable gland or entry device is smaller than the entry thread of the enclosure. Ex approval maintains hazardous location certification and the overall integrity of the installation.

This Reducer will convert holes which fit size M25 x 1.5 male threads to a female M20 x 1.5 threaded hub. Comes standard with a Nitrile O-Ring.

Designed for use within the hazardous locations present in oil, gas and petrochemical installations. They are also commonly used in Industrial & Commercial applications in place of standard industrial grade adapters providing a quick and easy solution when connecting to international components or machinery.

Proudly made in the USA!

Dimensional Chart:

Thread Sizes		Dimensions in Inches (mm)
Male Thread	Female Thread	A	B	C	A/F
Male Thread	Female Thread	Male Thread Length	Female Thread Depth	Body Length	Hexagon (Across Flats)
M25 x 1.5	M20 x 1.5	.63 (16)	.67 (17)	.236 (6)	1.25 (31.8)

Product Approvals & Specifications:

ATEX/IEC: Exd IIC Gb & Exe IIC Gb & Ex tb IIIC Db IP6X

IEC/EN 60079-0, IEC/EN 60079-1, IEC/EN 60079-7, IEC/EN 60079-7
ATEX/94/9/EC

NEC/CEC: Class I, Division 1 Groups ABCD

(>M50 Groups CD only)
UL1203, UL514B, UL50
C22.2 Nos. 30, 0.5, 0-M, 45, 18.3-04, 94-M91

AExd IIC / AExe II Class I, Zone 1

UL2279, UL60079-0, UL60079-1, UL60079-7, UL60079-1-1
E60079-0, E60079-1, E60079-7, E60079-1-1

Thread Gauging

Metric: 1.5mm Pitch Medium Fit 6g/H
(Sizes M80 and larger are 2.0mm pitch as Standard)
NPT: Male L1 +/-1 Turn
Female L1+ 1/2 to + 2 Turns
Other Thread Forms Available on Application

Material Options

Nickel Plated Brass 'N' (-100 to + 150°C)
316 Stainless Steel 'S' (-100 to +850°C)

O-Ring Options

Nitrile (-30 to +90°C)
Silicone (-50 to +230°C)
Nitrile O-Ring supplied as standard on versions with parallel male threads

Ingress Protection

With O-Ring IP 66 68, NEMA 4 (316 Stainless 4X)
With Thread Sealant (Non-Hardening) IP 66 68, NEMA 4 (316 Stainless 4X)
Without O Ring or Thread Sealant IP54

Impact Resistance: 7Nm

Clearance Holes: Reducer is certified for Exe clearance hole applications, Type 'L1' locknuts are required to secure the installation.

Competitor Cross Reference:

Redapt P/N: RD-U-3-0-05-04

Looking for a different size or material? Other Ex fittings?
Please check out our line of Explosion Proof Fittings or call (888) 835-0868

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M25 to M20 Thread Reducer: 316 Stainless Steel (ATEX)

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