Thermowell for lap flanges per ASME B16.5

Name: Thermowell for lap flanges per ASME B16.5
Brand: WIKA

Vanstone design, per petrochemical standards

MESC

Price

On request

Depends on configuration

Request a quote

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Description

Each thermowell is an important component of any temperature measuring point. It is used to separate the process from the surrounding area, thus protecting the environment and operating personnel and keeps aggressive media, high pressures and flow rates from the temperature probe itself and thereby enables the thermometer to be exchanged during operation.

Based on the almost limitless application possibilities, there are a large number of variants, such as thermowell designs or materials. The type of process connection and the basic method of manufacture are important design differentiation criteria. A basic differentiation can be made between threaded and weld-in thermowells, and those with flange connections.

Special features

Exceptionally heavy-duty design in typical Shell design
Solid-machined version without weld seam
Dimensions in accordance with Shell drawing S38.113 and S38.114 (all revisions)
Design in accordance with Shell MESC (Materials and Equipment Standards and Code)
For lap flanges per ASME B16.5

Identification

Model	TW31
Product family	TW
Subcategory	Solid-machined thermowell

Process conditions

Process connection

½ NPT female threadLap flange per ASME B16.5lap flanges per ASME B16.5

Materials

Thermowell material

Stainless steel 316, Stainless steel 316L, Duplex F51, alloy 400, alloy 625

Operating environment

Weight

1.6 kg

Certifications and approvals

Certifications

MESC

Additional details

Thermowell	Yes
Thermowell form	Form 2F
Datasheet languages	EN

Tables from datasheet

Shell drawing	Shell standard length L	Insertion length U
S38.113	230	215
	255	240
	305	290
	355	340
	405	390
	455	440
S38.114 1)	230	210
	255	235

Rev. 2)	Liquids v max	Gases v max	Calculation to ASME PTC 19.3 TW-2016
0	8 m/s (26 ft/s)	40 m/s (131 ft/s)	Recommended for 0, A, B
A	8 m/s (26 ft/s)	40 m/s (131 ft/s)	Recommended for 0, A, B
B	8 m/s (26 ft/s)	16 m/s (52 ft/s)	Recommended for 0, A, B
C	12 m/s (40 ft/s)	12 m/s (40 ft/s)	Required if v process > v max
D	12 m/s (40 ft/s)	12 m/s (40 ft/s)	Required if v process > v max
E	12 m/s (40 ft/s)	12 m/s (40 ft/s)	Required if v process > v max
F	12 m/s (40 ft/s)	12 m/s (40 ft/s)	Required if v process > v max

Shell standard	Dimensions inmm	Weight in kg
Ø g	L	Ø Q	ØV	Ø Bd	b
S38.113 for 1.5" (DN 40) lap flanges in accordance with ASME B16.5	73	230	30	14	48	15	1.6
73	255	30	14	48	15	1.7
73	305	30	14	48	15	1.8
73	355	30	14	48	15	2.0
73	405	30	14	48	15	2.1
73	455	30	14	48	15	2.3
S38.114 for 2" (DN 50) lap flanges in accordance with ASME B16.5	92	230	30	16	60	20	1.6
92	255	30	16	60	20	1.7
92	305 1)	30	16	60	20	1.8
92	355 1)	30	16	60	20	2.0
92	405 1)	30	16	60	20	2.1
92	455 1)	30	16	60	20	2.3

Shell standard	Dimensions inmm	Weight in kg
Ø g	L	Ø Q	ØV(rev. C)	ØV(rev. D)	Ø Bd	b
S38.113 for 1.5" (DN 40) lap flanges in accordance with ASME B16.5	73	230	30	14	19	48	15	1.6
73	255	30	14	19	48	15	1.7
73	305	30	14	19	48	15	1.8
73	355	30	14	19	48	15	2.0
73	405	30	14	19	48	15	2.1
73	455	30	14	19	48	15	2.3
S38.114 for 2" (DN 50), lap flange in accordance with ASME B16.5	92	230	30	16	19	60	20	1.6
92	255	30	16	19	60	20	1.7
92	305 1)	30	16	19	60	20	1.8
92	355 1)	30	16	19	60	20	2.0
92	405 1)	30	16	19	60	20	2.1
92	455 1)	30	16	19	60	20	2.3

View all (6)

Flange pressure rating	Pressure rating in lbs	Weight of the lap flange in kg
1.5" (DN 40) for thermowells per S38.113	150	1.3
300	2.4
600	2.9
900/1,500	5.3
2" (DN 50) for thermowells per S38.114	150	2.0
300	2.8
600	3.6
900/1,500	9.8
2500	14.7

Flange standard	AARH in µinch	R a in µm
ASME B16.5	Stock finish	125 ... 250	3.2 ... 6.3