Cast Iron Spring Loaded Full Lift Single Post Safety Valve

Description

NETA Cast Iron Spring Loaded, Full Lift, Single Post Safety Valve
13% Cr. Stainless Steel (ASTM A182 Gr.F6a /AISI – 410)/ Monel (Ni.Cu Alloy) Seats and 13% Cr. Stainless Steel (ASTM A182 Gr.F6a /AISI – 410) Stem
Inlet Flange to IBR Table – ‘F’
Outlet Flange to IBR Table – ‘D’

Test Pressure

Max. BOP : 150 PSIG
Max. Working Temperature : 220°C
Test Pressure : 300 PSIG Hyd.

Design Features

Full lift is achieved by rapid opening within an over pressure of 5% of the Set Pressure.
Each safety Valve is provided with an easing lever.
Each Valve is provided with cover of Adjusting Screw and Pad Lock to avoid unauthorised alteration of the Set Pressure.

Certification

IBR Test Certificate in FORM III-C duly signed by the Director of Boilers, Punjab is provided.

Application

Steam

HSN

84818010

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PNo.	Part	Nos.	Material	Standard
1	Cap	1	C.I.	IBR 86 to 93 Gr.A
2	Locking Pin	1	Bronze	IBR 282[a][iv] Gr.B
3	Stem	1	S.S. 13% Cr.	ASTM A182 Gr.F6a / AISI – 410
4	Adjusting Screw	1	Bronze	IBR 282[a][iv] Gr.B
5	Easing Lever	1	C.I.	IBR 86 to 93 Gr.A
6	Gasket	2	C.A.F.	IS:2712
7	Disc Guide	1	Bronze	IBR 282[a][iv] Gr.B
8	Locking Screw	1	M.S.	IS:1367
9	Blow Down Ring	1	Bronze	IBR 282[a][iv] Gr.B
10	Body Seat Ring	1	S.S. 13% Cr.	ASTM A182 Gr.F6a /AISI – 410
11	Body	1	C.I.	IBR 86 to 93 Gr.A
12	Pad Lock	1	M.S.	–
13	Check Nut	1	Bronze	IBR 282[a][iv] Gr.B
14	Bush	1	Bronze	IBR 282[a][iv] Gr.B
15	Upper Spring Disc	1	Bronze / S.S. 13% Cr.	IBR 282[a][iv] Gr.B / ASTM A182 Gr.F6a / AISI – 410
16	Spring	1	Carbon Steel	IBR 307 (a)
17	Spring Chamber	1	C.I.	IBR 86 to 93 Gr.A
18	Lower Spring Disc	1	Bronze / S.S. 13% Cr.	IBR 282[a][iv] Gr.B / ASTM A182 Gr.F6a / AISI – 410
19	Studs & Nuts	To Suit	M.S.	IS:1367
20	Disc	1	S.S. 13% Cr. / Lumina	ASTM A182 Gr.F6a /AISI – 410 / Ni.Cu.ALLOY

Nominal Size (Inches)	Nominal Size (mm)	A ±3	H	H1 ±3	MRP / Piece
1	25	108	283	90	–
1.1/2	40	120	343	102	–
2	50	140	407	121	–
2.1/2	65	152	483	135	–
3	80	178	550	160	–
4	100	190	637	186	–

Nominal Size (Inches)

Nominal Size (mm)

A ±3

H1 ±3

MRP / Piece

108

283

–

1.1/2

120

343

102

–

140

407

121

–

2.1/2

152

483

135

–

178

550

160

–

100

190

637

186

–

Nominal Size (Inches)	Nominal Size (mm)	A ±3	H	H1 ±3	MRP / Piece
1	25	108	283	90	–
1.1/2	40	120	343	102	–
2	50	140	407	121	–
2.1/2	65	152	483	135	–
3	80	178	550	160	–
4	100	190	637	186	–