Marine Forged Steel Male Thread Stop Valve

GB/T 594 Marine Forged Steel Male Thread Stop Valve | High-Pressure Steam & Fluid Control Valves for Ships

Product Overview
The GB/T 594 Marine Forged Steel Male Thread Stop Valve is a premium high-pressure valve designed for critical applications in shipbuilding, ship repair, and marine fluid systems. Manufactured to Chinese National Standard GB/T 594, this forged steel valve features male thread connections and is engineered to handle seawater, freshwater, lubricating oil, fuel oil, and steam up to 400°C. With pressure ratings of 4.0MPa and 10.0MPa, it ensures reliable performance in the most demanding marine environments.

Key Features & Benefits

✅ GB/T 594 Certified: Full compliance with Chinese national standard specifications
✅ High-Pressure Capability: 4.0MPa and 10.0MPa ratings for demanding applications
✅ High-Temperature Resistance: Suitable for steam services up to 400°C
✅ Forged Steel Construction: Superior strength and durability for marine service
✅ Male Thread Connections: Secure sealing and easy installation
✅ Multi-Fluid Compatibility: Handles seawater, freshwater, oils, and steam
✅ IACS Certification Ready: ABS, BV, RINA, LR, CCS, NK, KR, DNV approvals available
✅ Custom Material Options: Stainless steel 304, 316L, and cast steel available

Technical Specifications

Design Standard: GB/T 594
Body Material: Stainless Steel
Cover Material: Carbon Steel
Disc & Stem Material: Stainless Steel
Pressure Ratings: 4.0MPa, 10.0MPa
Nominal Diameter: DN6-DN32
Temperature Rating: Up to 400°C
Connection Type: Male Thread

Dimensions & Specifications – DN6~DN10

PN (MPa)	DN (mm)	L	H	H1	A	B	Thread Joint	D	D1	D2	I	I1	S2	D0	S1	Weight (kg)
10.0	6	74	37	90	12	32	M22×1.5	19.8	10	14	3	24	65	7	5	0.49
10.0	10	94	47	109	16	38	M27×1.5	24.8	14	16	3	30	80	8	7	0.89

Dimensions & Specifications – DN15~DN32

PN (MPa)	DN (mm)	L	H	H1	S2	A	B	Thread Joint	D	D1	D2	I	I1	D0	S1	Weight (kg)
4.0	15	110	55	143	25	52	M36×2	33	22	22	5	32	41	80	8	1.60
4.0	20	116	58	153	32	55	M39×2	36	25	23	5	36	46	100	9	2.04
4.0	25	130	65	167	38	64	M48×2	45	32	26	6	46	50	120	11	2.88
4.0	32	140	70	197	46	72	M56×2	53	38	28	6	46	60	140	12	4.56
10.0	15	120	60	164	27	52	M36×2	33	22	22	5	32	41	120	11	2.10
10.0	20	134	67	194	32	55	M39×2	36	25	23	5	36	46	140	12	2.95
10.0	25	134	67	204	38	64	M48×2	45	32	26	6	46	55	140	12	3.72
10.0	32	146	73	220	46	75	M56×2	53	38	28	6	55	65	160	14	5.12