Special characters

A - External spindle thread

This bonnet is necessary for operating temperatures over 300°C (over 250° C recommended).

Anmerkung: Die Temperatur in der Meßleitung ist meist
deutlich niedriger als in der Rohrleitung.
Note: The temperature in the measurement tube is in most cases considerably lower than in the product pipe.

 part No.
designation
materials
1 valve body A105 316Ti A182-F11;F12 A182-F1 A182-F22
3 spindle 430F 316Ti
3.1 cone, rolled into SS 316Ti
4 bonnet case screwed 1035 316Ti
5 plate Novapress
6 packing graphite
7 stuffing box 1015 316Ti
8 nut 1035 303
9 handwheel steel sheet
10 nut galvanized steel SS galvanized steel
14 threaded 303
15 safety pin steel

A - External spindle thread type A2

Contrary to the previous external spindle thread the packing can be pulled tight here only with opened spindle (open valve).

part no. designation materials
1 valve body A105 316Ti A182-F11 A182-F1 A182-F22
3 spindle 430F 316Ti
3.1 cone, rolled into 430F 316Ti
4 bonnet case screwed 1035 316Ti
5 plate Novapress
6 packing graphite
7 stuffing box 1213 316Ti 1213
8 nut 1213 316Ti 1213
9 handwheel steel sheet
10 nut galvanized steel SS galvanized steel

F - Head piece with bellow and security stuffing box acc. german TA-Luft (TA-Luft; VDI 2440)

With bellow seals a tightness (outwards) of bigger than 1x 10-8mbar 1/s can be reached. The tightness can be checked using a helium-leak-test.


part no. designation materials
4a stuffing box 316Ti
4b spindle-union 316Ti
4c plate 316Ti
4d packing PTFE or graphite
4e plate 316Ti / PTFE
4f hollow-spindle 316Ti
4g plate 316Ti / PTFE
4h upper-part 2 316Ti
4j spindle with cone rolled into 316Ti
4k bellow 316Ti
4l upper part 1 316Ti
9 handwheel moulded plastic
10 nut SS
13 jointing 316Ti

Anti Tamper (T)
These spindle could be only used with a special t-bar.

Anti Tamper lockable (TL) Bonnet is lockable (lock not included).

E - Vent screw

Entlüftungsschrauben gibt es hauptsächlich in Manometerventilen.
Sie entspannen die Ausgangsseite.
Vent screws are mostly in gauge valves. They relax the outlet.

G - Bar

Bars are made out of carbon steel or SS (13% chrome).


for valves, manifolds typeL B H D
A3, all manifold 75 20 9 7
A7, A11, E5, S15 100 25 10 8

R - regulating cone

Valves with regulating cone offer the possibility for better flow regulation. There are different forms (parabolic form, step-cone, taper-cone (standard)).

K - lock nut for panel mounting



Valves are available with an extra long external thread on the bonnet to allow panel mounting.

L - bracket

Brackets are made out of carbon steel or stainless steel.


for valves typeD max B
A3, A7 5 9
A11 5 9

Lr - bracket half round

This bracket is welded at a valve or a manifold. Thus mounting is possible at an instrument panel or to a pipe rack with a fixingbolt. (s. also Zubehör für Ventilblöcke)

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