3/4-14 NPT (male) to M20 x 1.5 (female) Thread Reducer: Nickel Plated Brass

3/4" NPT to M20 Thread Reducer: Nickel Plated Brass (ATEX)

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Part Number: R1.3/4.20.N

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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 3/4-14 NPT male threads to a female M20 x 1.5 threaded hub.

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)
3/4-14 NPT	M20 x 1.5	.787 (20)	1.0625 (26.99)	.236 (6)	1.0625 (26.99)

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
Class II, Division 1, Groups EFG; Class III

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 IP66/IP68, NEMA 4X
With Thread Sealant (Non-Hardening) IP66/IP68, NEMA 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-1-1-30-04

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

Rating Snapshot

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Average Customer Ratings

5.0

Purchasing Manager

Great quality and fast shipping. Thread Tool Supply is a pleasure to do business with.

Did you find this helpful? 1 of 1 Found Helpful

Reviewed by: Alicia Leonard from Houston on 2/25/2021

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3/4" NPT to M20 Thread Reducer: Nickel Plated Brass (ATEX)

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