ARI-SAFE TCS

Standard safety valve with thread connection – for horizontal application – acc. to VdTÜV sheet 100, AD2000-A2 and EN ISO 4126-1

Description

eClass-No.:	37010905
Application:	Chemical Industry, processing industry, plant manufacturing
Medium:	Steam, aggressive gases, vapours and liquids

Technical data

ARI-SAFE TCS Standard safety valve with thread connection

Figure	Nominal pressure		Material		Nominal diameter	Temperature range	Thread
67.951 / 952 / 953	PN100		1.4581/EN-JS1049		DN15 – 25	-10°C to +300°C (up to +400°C on request)	DIN ISO 228 Part 1
57.951 / 953	PN100		1.4581		DN15 – 25	-60°C to +300°C (up to +400°C on request)	DIN ISO 228 Part 1
Flange design on request.
Construction
Safety valve, spring loaded, direct loaded
Requirement
acc. to EN ISO 4126-1, VdTÜV-leaflet 100, AD2000-A2
Type-test approval
Standard safety valve:		Fig. 951/952/953		TÜV · SV · . . -1041 · D/G
Standard safety valve:		Fig. 951/953		TÜV · SV · . . -1041 · F
Sizing
for steam, air and water refer to capacity tables, calculations acc. to EN ISO 4126-1, TRD 421 and AD2000-A2
Details required
Medium gasform:		Mass flow (kg/h), molar mass (kg/kmol), Isotropic exponent, temperature (°C), set pressure (barg), back pressure (barg)
Medium liquid:		Mass flow (kg/h), density (kg/m³⁾, viscosity, temperature (°C), set pressure (barg), back pressure (barg)
Order data:
ARI-SAFE-TCS – Safety valve, Figure ….., DN … / …, PN .. / .., Material …….., Set pressure …. bar, Installation position ….
standard: without metal bellows
Superimposed back pressure		no backpressure allowed
Built up back pressure		max. 10% from set pressure (higher on request)

Parts
Pos.	Sp.p.	Description	Fig. 67.961/962/963	Fig. 57.961/963
1		Body	GX5CrNiMoN19-11-2, 1.4581
7	x	Gasket	Pure graphite (CrNi laminated with graphite)
11		Bonnet, closed	EN-GJS-400-18U-LT, EN-JS1049	GX5CrNiMoN19-11-2, 1.4581
12		Disc	X6CrNiMoTi17-12-2, 1.4571
14	x	Spindle	X6CrNiMoTi17-12-2, 1.4571
17		Adjusting screw	X2CrNiMo17-12-2, 1.4404
27		O-ring	FPM
28		Cap, closed	GX5CrNiMoN19-11-2, 1.4581
29		Cap, open	GX5CrNiMoN19-11-2, 1.4581
30		Cap, gastight	EN-GJS-400-18U-LT, EN-JS1049	GX5CrNiMoN19-11-2, 1.4581
36		Lever, closed (optional: Fig. … .951 / Fig. … .952)	EN AC-4420 (Al)
37	x	Spring	FDSiCr	X10CrNi18-8, 1.4310
63		Guide bush	X6CrNiMoTi17-12-2, 1.4571
65		Coupling	X6CrNiMoTi17-12-2, 1.4571
66		O-ring	FPM
67		Lift button	X6CrNiMoTi17-12-2, 1.4571
	└ Spare parts

Spring ranges: Standard design
Standard safety valve Fig. 951/952/953	(barg)	0,5
	(barg)	> 0,5 – 1
	(barg)	> 1 – 1,4
	(barg)	> 1,4 – 2,95
	(barg)	> 2,95 – 4,9
	(barg)	> 4,9 – 12
	(barg)	> 12 – 20
	(barg)	> 20 – 27
	(barg)	> 27 – 35
	(barg)	> 35 – 45
	(barg)	> 45 – 59
	(barg)	> 59 – 100

Information / restriction of technical rules need to be observed!

The engineer, designing a system or a plant, is responsible for the selection of the correct valve.

Resistance and fitness must be verified (contact manufacturer for information, refer to Product overview and Resistance list).

Weights
standard	(kg)	1,2	1,2	1,2	1,2	1,2	1,2

Pressure-temperature-ratings

Intermediate values for max. permissible operational pressures can be determined by linear interpolation of the given temperature / pressure chart.

acc. to DIN EN 1092-1			-60°C to <-10°C	-10°C to 100°C	150°C	200°C	250°C	300°C	350°C	400°C	450°C
1.4581	PN100	(bar)	75	100	98	93,3	88,5	83,3	80,4	78	—

Certified coefficient of discharge Kdr (Values for D/G variable: < 3 bar)
DN	15	20	25
TÜV · SV · . . – 1041 · D/G	0,26
TÜV · SV · . . – 1041 · F	0,19