Marine Class 150 Gate Valve

Marine Class 150 Gate Valve

1. Introduction

Marine Class 150 Gate Valves are commonly used in marine applications to control the flow of fluids such as water, fuel, and chemicals. These valves are typically designed for low-pressure applications and have a maximum pressure rating of 150 pounds per square inch (psi) as per the ANSI standard.

The gate valve is named after the gate-like disk that moves up and down to control the flow of fluid through the valve. The disk is positioned between two seats in the valve body and is lifted to allow fluid to flow through the valve when the valve is opened. When the valve is closed, the disk is lowered to block the flow of fluid.

2. Material

(1) . - Body: bronze

(2) . - Bonnet: bronze

(3) . - Stem: bronze

(4) . - Disc: bronze

(5) . - Seat: bronze

(6) . - Bolt: steel

(7) . - Nut: steel

(8) . - Packing: flexible graphite

(9) . - Gasket: flexible graphite+stainless steel

3. Nominal Diameter ＆ Pressure

Diameter:50~400

Pressure:150

4. Application

The gate valve is well-suited for applications that require a tight shutoff, as the disk can provide a complete seal against the valve seat. Gate valves are also suitable for applications that require a full open or full close position, as the disk can move completely out of the way when the valve is fully open.

5. Main Size List

NPS	2’’	2 1/2’’	3’’	4’’	5’’	6’’	8’’	10’’	12’’	14’’	16’’
DN	50	65	80	100	125	150	200	250	300	350	400
L	178	190	203	229	254	267	292	330	356	381	406
H	386	435	483	587	673	767	955	1146	1328	1519	1721
W	200	200	250	250	300	300	350	450	500	600’’	600’’

6. IACS Certificate: LR, RINA, ABS, BV, CCS, DNV-GL.