Valve Selection Guide

Ball Valves

Brass Ball Valves

A very reliable valve that takes only 1/4 turn for complete on off operations. Valve will not malfunction even after extended periods of non operation. Handle position will tell you the valves current position.
Full port type ball valves have unrestricted flow and are the full size of the ID of the attached pipe. This arrangement will have no effect on the pressure to the attached pipes. (A)
Standard port type ball valves have a slightly restricted flow and are about one pipe size smaller than the attached pipe. This arrangement will increase the pressure to the attached pipes. (B)
Reduced port type ball valves have a restricted flow and are about two pipe size smaller than the attached pipe. This arrangement will greatly increase the pressure to the attached pipes.

Installations Instructions:

Step 1: Wrap Teflon tape on male pipe ends only and thread into the valve (C)
Step 2: Using a pipe wrench tighten only enough to seal assembly.
Step 3: Check for leaks and continue to tighten if necessary.
Lester Says: "Do Not Over-Tighten as valve may develop stress cracks"

Note: 3/4" Garden Hose fittings are not compatible with 3/4" pipe thread and will leak

Application Guidelines :

1.Designed for use with water, oil or inert gas. Ball Valves do not require any maintenance.

2.Check manufactures guidelines for recommended uses and specifications especially when the use of natural or any flammable gas is indicated.

3.Galvanized, Black or Brass pipe can be used with these valves.

Lester Says: "Never use galvanized pipe to deliver natural gas or other industrial gases or chemicals"

Specifications:

Temperature:-40° F to +366° F threaded

                                      -4° F to +366° F soldered

Working Pressure: 2 1/2" to 4" - 450 PSI @ 100° F

Working Steam Pressure:Working Pressure: 1/4" to 2" - 150 PSI @ 366 ° F

Lester Says: "Not all Ball Valves are the same" Always make sure manufactures specifications meet your applications tolerances and intended use criteria"

Bronze and Brass Gate Valves

Gate Valves

Gate Valves utilize a gate that is designed to be a positive shut off. Gate valves should be either fully open or completely closed. These valves are not designed for partial flow applications.
Gate valves are available with rising stems that go up or down with operation or
a non rising stem for use in applications with vertical limitations.
This type of valve is serviceable through the bonnet. There are three types of bonnets. The screw-in bonnet is the simplest, offering a durable pressure tight seal.

The Union bonnet is the best choice for applications that require frequent inspection and cleaning and it's design also adds strength to the the valve body. The bolted bonnet is for larger valves and higher pressure applications.

Installations Instructions:

Step 1: Wrap Teflon tape on male pipe ends only and thread into the valve
Step 2: Using a pipe wrench tighten only enough to seal assembly.
Step 3: Check for leaks and continue to tighten if necessary.
Lester Says: "Do Not Over-Tighten as valve may develop stress cracks"

Note: 3/4" Garden Hose fittings are not compatible with 3/4" pipe thread and will leak

Application Guidelines:

1.Designed for use with water, oil or inert gas. Bronze and Brass valves will resist rust and corrosion but will require some service over time. Service intervals will depend on application , frequency of operations and valve location.
2.Galvanized, Black or Brass pipe can be used with these valves.
Lester Says: "Never use galvanized pipe to deliver natural gas or other industrial gases or chemicals"

Specifications:

Screw in Bonnet

Temperature: -20° F to +500°

Working Pressure: 200 PSI @ 150° F

Union Bonnet
Temperature: -20° F to +500°

Working Pressure: 400 PSI @ 150° F

Needle Valves

Needle valves

Needle vales are designed to to deliver precise flow control due to the fine thread controlled tapered needle that passes through the the valve. The needle is generally controlled by a tee handle. (C)
The tapered part of the needle is smaller than the opening and allows a very gradual decrease in flow before it seats at the bottom of the fitting body to stop flow completely. Some needle valves have soft seats or soft tipped needles that provide a bubble tight shutoff while others are hard tipped needles with
metal to metal seating. This type usually utilizes packing around the stem nut (B) that can be adjusted to stop leaks. Another version uses a stem and o - ring only.

Installations Instructions:

Step 1: Wrap Teflon tape on male pipe ends only. (A)
Step 2: Using a pipe wrench tighten only enough to seal assembly.
Step 3: Check for leaks and continue to tighten if necessary.
Lester Says: "Do Not Over-Tighten as valve may develop stress cracks"

Application Guidelines:

1. Designed for use with water, oil or inert gas.

2. Check manufactures guidelines for recommended uses and specifications especially when the use of natural or any flammable gas is indicated.

3. Galvanized, Black or Brass pipe can be used with these valves.
Lester Says: "Never use galvanized pipe to deliver natural gas or other industrial gases or chemicals"

Specification

Temperature:  -15° F to +400°

Working Pressure: 2000 PSI @ 400° F Brass

Working Pressure: 5000 PSI @ 400° F Steel

Lester Says: "Not all Stem Valves are the same" Always make sure manufactures specifications meet your applications tolerances and intended use criteria"

Water Supply Stop Valves

Stop valves Compression style

Stop Valve Quarter Turn Style

These valves are constructed of chrome - plated brass and provide an attractive easy to use shut-off for home water supply applications. There are two varieties available the standard stem valve (A) and a quarter turn ball valve version.(B) They are available with a variety of connection options and finishes.

Installations Instructions:

Step 1: Please refer to the More Information Pages on respective connection type
(pipe, compression and sweat) for more information on making these connections to appliance and water supply.

Application Guidelines:

1. Designed for use with house pressure water lines.

2. Check appliance manufactures guidelines for recommended pressures and temperatures to make sure these valves meet the requirements of your application.

3.The multitude of design configurations and connector options make these valves adaptable to just about any home application.
Lester Says: "email me if you need help to configure your connections using supply line valves"

Specifications:

Working Pressure: 125 PSI @ 125° F

Temperature:40° F to + 185° F

Lester Says: "Not all Supply Stop Valves are the same" Always make sure manufactures specifications meet your applications tolerances and intended use criteria"

Check Valves

Check Valves swing Check type

Spring Loaded check valves

Check Valves are designed to check or prevent backflow. When flowing in the desired direction will cause a piston, disc or ball mechanism to open and any back flow with cause the same mechanism to close and stop flow.
Spring - loaded check valves: have a spring assist mechanism that is controlled by the flow to open and close the close the valve. For horizontal and vertical use.
Ball check valves: have a free - floating ball which "unseats" to allow flow in the desired direction. The ball will snap back against the seat to seal off valve from backflow when flow is interrupted. These valves can installed horizontally and vertically for up flow or down flow if used with a spring loaded ball.
Swing check valves: have a swinging disc mechanism (A) that controls flow. These type valves respond to minimal back flow pressure to close off backflow. Spring loaded discs react faster. They can be used for horizontal applications and if vertically flow is upward.
Horizontal -lift (gravity) check valves: have a floating disc in the seat that opens by flow velocity to full flow and flaps closed when flow ceases. For horizontal use.
Cracking Pressure: This is the minimum psi pressure required to open a check valve.

Installations Instructions:

Step 1: Wrap Teflon tape on male pipe ends only.
Step 2: Using a pipe wrench tighten only enough to seal assembly.
Step 3: Check for leaks and continue to tighten if necessary.
Lester Says: "Do Not Over-Tighten as valve may develop stress cracks"

Application Guidelines:

1.Designed for use with liquids.

2.Check manufactures guidelines for recommended pressures and temperatures to make sure they meet the requirements of your application.

3.Galvanized, Brass or stainless steel pipe can be used with these valve.
Lester Says: "Never use galvanized pipe to deliver chemicals before checking with the manufacturer.

Specifications:

Working Pressure: 200 to 1000 PSI @ 180° F to 400° F

Temperature: 30° F to -20°F to +180°F to + 400° F

Lester Says: "Not all Check Valves are the same" Always make sure manufactures specifications meet your applications tolerances and intended use criteria"

Bronze and Brass Globe Valves

Globe valves

Globe valves have a spherical body shape. The two body halves are separated by a baffle with a disc located in the center. These valves are controlled by the screw action of a hand wheel. Unlike the gate valve these valves are designed for pplications that require frequent and partial throttle operation. The Globe valves center disc restricts flow so they are not recommended where full, unobstructed flow is required. The valve is serviceable through the bonnet. There are three types of bonnets. The screw-in bonnet is the simplest, offering a durable pressure
tight seal. The Union bonnet is best for applications that require frequent inspection and cleaning and it also adds strength to the the valve body. The bolted bonnet is for larger valves and higher pressure applications.

Installations Instructions:

1: Wrap Teflon tape on male pipe ends only and thread into the valve

Step 2: Using a pipe wrench tighten only enough to seal assembly.
Step 3: Check for leaks and continue to tighten if necessary.
Lester Says: "Do Not Over-Tighten as valve may develop stress cracks"

Note: 3/4" Garden Hose fittings are not compatible with 3/4" pipe thread and will leak

Application Guidelines :

1. Designed for use with water, oil or inert gas. Bronze and Brass valves will resist rust and corrosion but will require some service over time. Service intervals will depend on application , frequency of operations and valve location.
2.Galvanized, Black or Brass pipe can be used with these valve.
Lester Says: "Never use galvanized pipe to deliver natural gas or other industrial gases or chemicals"