Forged Steel Bellows Seal Globe Valve

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Application
Petroleum, chemical industry, pharmacy, fertilizer, power industry etc.

Advantage
1.Bellow seal element. The key part of bellow sealed globe valves is mental bellow. It is the connection between cover and stem with automatic roll welding. The mental bellow can keep the stem part no leakage.
2.Benefit from the con and streamline shape design, the disc has a reliable seal and longer service life.
3.Double seal design(bellows+packing). Bellow and packing can protect against leakage and provide a excellent seal.
4.Grease nipple. It can direct lubricate the stem, nut and sleeve.
5.Ergonomic hand wheel. It provide longer service life and easier operation.

Technical specification
Design standard: DIN 3356
Face to face dimension: DIN 3202
Flanged ends: DIN 2543-2545
Test & inspection: DIN 3230

Performance specification

Nominal Pressure		PN
Test Pressure	Strength test	1.5PN	MPa
	Sealing test	1.1PN
	Gas seal test	0.6
	--	--
Suitable temp		-196℃~600℃

NO.	Part name	Material
1	Body	A105N、F304、F316
2	Seat	304、Stellite
3	Disc	2Cr13、F304、F316
4	Pin	S.S304、S.S316
5	Bellow assemble	S.S304、S.S316L
6	Stem	2Cr13、F304、F316
7	Gasket	Flexible graphite + stainless steel
8	Cover	A105N、F304、F316
9	Headed bolt	ASTM 193-B7、A193-B8
10	Packing	Flexible graphite
11	Gland	A105N、F304、F316
12	Jack bolt	ASTM 193-B7、A193-B8
13	Nut	ASTM 194-2H、A194-8
14	Stem nut	Copper alloy、D2
15	Hand wheel	Carbon steel
16	Cap	45#

PN 16
DN	Main connection size
DN	L	D	D1	D2	b	f	H	n-Φd
15	130	95	65	45	16	2	210	4-Φ14
20	150	105	75	58	18	2	215	4-Φ14
25	160	115	85	68	18	2	220	4-Φ14
32	180	140	100	78	18	2	225	4-Φ18
40	200	150	110	88	18	3	250	4-Φ18
50	230	165	125	102	20	3	270	4-Φ18
PN 25
15	130	95	65	45	16	2	210	4-Φ14
20	150	105	75	58	18	2	215	4-Φ14
25	160	115	85	68	18	2	220	4-Φ14
32	180	140	100	78	18	2	225	4-Φ18
40	200	150	110	88	18	3	250	4-Φ18
50	230	165	125	102	20	3	270	4-Φ18
PN 40
15	130	95	65	45	16	2	210	4-Φ14
20	150	105	75	58	18	2	215	4-Φ14
25	160	115	85	68	18	2	220	4-Φ14
32	160	140	100	68	18	2	225	4-Φ18
40	180	150	110	78	18	3	250	4-Φ18
50	230	165	125	102	20	3	270	4-Φ18

Comprehensive Solution For Steam And Heat System