Gate Valves

ANSI 150# Cast Steel Flange End Gate Valve

ANSI 150# Cast Steel Flange End Gate Valve. Rising/non-rising stem; minimal pressure drop when fully open; for isolation duty, operated fully open or fully closed. Body in Cast Carbon Steel WCB, rated ANSI Class 150# (PN20). Tough, economical body for oil, steam and general high-pressure service.

Bubble-tight shut-off (soft-seated types)
Corrosion-resistant materials
Ex-stock in common sizes
Actuation options on request

Brand

AF Hydro

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Specifications

Size Range	2” to 4”
Connections	ANSI 150# Flange End Connection
Design and Manufacture Standard	ASME B16.10 / API 600 / API 602
Working Pressure	150 PSI
Valve Body Material	Cast Steel
Applicable Medium	General Oil, Gas & Water applications
Temperature Range	≤ 425°C

Specifications are indicative and vary by size and manufacturer. Request the full datasheet for exact dimensions, materials and certification.

Typical applications

Water, seawater and utility distribution
Compressed air and low-pressure gas
Steam and condensate (rated types)
Marine, building services and process lines

Ordering & procurement

Ex-stock in Singapore, dispatched within 3 working days. Material / mill certificates (EN 10204 3.1) and export documentation available. Special sizes and materials sourced on request.

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Product Information

Specifications

Gate valve is valve that installed on hydraulic systems to allow or cut off the fluids flow through the valve passage. The wedge can be lift up or lift down by rotate the wheel handle according to the direction of “open” and “close” which mark on handle. It is design and manufacture according to various standard such as ASME B16.10, API 600, and API 602. It will be inspected and tested according to API 598.

Material and Design

ANSI 150# Flange End Gate Valve is available in several materials such as forged steel A105, stainless steel SS316, cast iron A126B, and cast steel WCB. The materials can be select accordingly by refer to the system requirement. For ANSI 150# gate valve, the cover is design in bolted bonnet type where bolts and nuts are used to tighten the cover with the valve body.

The stem which is one component part of gate valve, is available in rising stem design and non-rising stem design. For rising stem design, it mean that the stem will rise when the handle is rotate to open position and descend when the handle is rotate to close position. This design tell us if the valve is in open position or closed position by looking at the amount of stem exposed. Alternatively for non-rising stem design, the valve is fully open when the handle is rotate to open position as far as possible and fully close when the handle is rotate to close position as far as possible. Non-rising stem design gate valve is suitable to install on tight places where there is not enough space for the stem to raise, for example, underground pipe systems.

Do check with us for the availability of gate valve design.

Connection Type

For ANSI 150# series flange end gate valve, the another connection end need to be in ANSI 150# flange connection as well. The number of bolt hole is depend on the valve size. For example, for valve size that below 4”, there are only 4 bolt hole on the flange. While for valve size that above 4”, there are 8 bolt hole on the flange. Bolts, nuts, and gasket are required whenever there are any flange to flange connection.

For more information regarding gate valves, please refer to en.wikipedia.org/wiki/Gate_valve.

Material List

NO	PART NAME	MATERIAL
1	Body	ASTM A216 WCB
2	Seat	ASTM A105 + 13%Cr
3	Wedge	ASTM A216 WCB + 13%Cr
4	Stem	ASTM A182 F6a
5	Gasket	A3 + Graphite
6	Bolt	ASTM A193 B7
7	Nut	ASTM A194 2H
8	Back Seat	ASTM A276 410
9	Packing	Flexible Graphite
10	Pin	AISI 1035
11	Eye Bolt	AISI 1032
12	Gland	ASTM A276 410
13	Gland Flange	ASTM A216 WCB
14	Bonnet	ASTM A216 WCB
15	Nipple	Assembly
16	Stem Nut	ASTM A439 D2
17	Nut	AISI 1035
18	Handwheel	WCB
19	Lock Nut	AISI 1035

Main Technical Parameters

Nominal Pressure	CLASS 150
Shell test	3.0 MPa
Back Seal Test	2.2 MPa
Seal Test	2.2 MPa
Gas Test	0.6 MPa
Max working temperature	≤ 425°C

Technical Specifications

Basic design and manufacture according to API 600
Face to face dimension: ASME B16.10
Flange End: ASME B16.5
Inspection and test: API 598

Dimensional Drawing

ANSI 150# Cast Steel Flange End Gate Valve Drawing

Downloads

Catalogues & literature

📄

ANSI 150# Cast Steel Flange End Gate Valve Catalogue

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📄

ANSI 150# Cast Steel Flange End Gate Valve Literature

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Frequently Asked Questions

What is the size range of ANSI 150# cast steel flange end gate valves?

For ANSI 150# cast steel flange end gate valves, the size ranges are from 2 inches to 4 inches and from 5 inches to 6 inches.

What is ANSI 150# cast steel flange end gate valves made of?

It is made of cast steel.

What is the working pressure of ANSI 150# cast steel flange end gate valves?

The working pressure that ANSI 150# flange end gate valves can withstand is up to 150#.

What is the function of ANSI 150# cast steel flange end gate valves?

The function of ANSI 150# cast steel flange end gate valves is to block the flow of fluids in a system by using a gate or wedge type disc.

What is the type of connection for ANSI 150# cast steel flange end gate valves?

ANSI 150# Flange connection.

What is the difference between a gate valve and a ball valve?

Ball valves are more reliable and long-lasting than gate valves in terms of creating a tight seal. While gate valve has an internal disc or wedge to allow flow process and the cost is slightly lower than ball valve.