CHECK-ALL VALVE

PREMIER SPRING CHECK VALVE, SILENT CHECK VALVE MANUFACTURING COMPANY

Available at Alpha Process Sales - Louisiana

LEARN MORE

CHECK-ALL FEATURED PRODUCT

The Universal Socket Weld (US) check valve is a one-piece body machined from bar stock with socket weld ends and designed for a minimum pressure drop. It carries rugged, dependable Check-All trim and there are a wide variety of seat materials and cracking pressures to choose from. This valve series is particularly attractive when weld joints are required. The socket ends are machined to ASME/ANSI B16.11 dimensions.
Note: Please take precautionary measures when welding to prevent heat build-up and possible damage to the valve seat.

US.png
US STYLE
APPLICATION GUIDELINES
INSTALLATION GUIDELINES
Full
Catalog
Silent Check Valve
Information
Spring Loaded
Check Valve
Information
newVI
newVI

Vacuum Flange Insert Check Valve Style – VI

press to zoom
UV
UV

Union Insert Check Valve Style – UV

press to zoom
FIV1
FIV1

Flange Insert Check Valve Style – F1, F6, FP

press to zoom
newVI
newVI

Vacuum Flange Insert Check Valve Style – VI

press to zoom
1/22
FLANGE INSERT CHECK VALVE STYLE F1, F6, FP

Ultimate check valve to install in flanged piping systems. Often referred to as wafer check valves, they provide the simplest most economical way to install check valves in a piping system. The valve body helps position itself while bolts are being installed and tightened. Two gaskets are required instead of the one normally used in a flanged joint. 

These spring loaded check valves are designed to fit between two mating ANSI flanges. The “Spring Housing” designated by the “A” dimension,  is designed to be inserted into the upstream pipe, thereby helping to center it in the pipe. Therefore, there must be clearance between the spring housing and the pipe or flange. Generally speaking, the Flange Insert check valve (F1) is designed for standard schedule pipe with Class 150 or 300 flanges; whereas, the (F6) valves are designed for schedule 80 pipe with Class 150, 300 or 600 flanges. 

The Flange Insert check valve can also be used as a low-pressure relief valve or vacuum breaker by using the desired spring settings. Many valves in this series can be supplied with B16.34 certification.

CATALOG PAGE DOWNLOAD

FIV1.gif
Check-All_FIV.gif
HORIZONTAL, VERTICAL, FLANGED & DRILLED STYLE CHECK VALVE HV

A one-piece cast full-bodied spring loaded check valve with ANSI/ASME B16.5 Class 150 flanged ends. The HV series spring check valve is used when higher flow rates and lower pressure drops are required. The valve is available in sizes 1 through 10 inches and standard materials of CF8M (cast 316 stainless) and WCB/WCC (cast carbon steel). This check valve is designed for use with mating ANSI class 150 flanges. Other materials are available upon request

CATALOG PAGE DOWNLOAD

HV-e1571942936691.png
WAFER INSERT CHECK VALVE STYLE WV

Also known as a wafer check valve is designed to fit between two mating ANSI flanges. Two gaskets are required, instead of the one normally used. The “drop in” wafer check valve body design fits inside the bolt circle for quick installation and removal in rigid piping applications where the use of the Flange Insert check valve (F1, F6, or FP) are not practical.  Many valves in this series meet API 594 and/or B16.34 requirements.

The Wafer Insert check valve can also be used as a low-pressure relief valve or vacuum breaker by simply using the desired spring settings.

CATALOG PAGE DOWNLOAD

WV-valve-002.png
 
BUSHING CHECK VALVE STYLE BU, BR

The Bushing Check Valve (BU, BR) is a spring loaded check valve with a standard pipe bushing housing. The valve is adaptable to many types of service applications. It has very little restriction and produces a low-pressure drop. It can be used quite effectively in systems where flow and pressure drop are critical by the use of a reducer coupling. This spring check valve also makes an excellent vacuum breaker. The high flow rate insures maximum effectiveness for vacuum breaker service. By reversing the direction of flow it can also be used as a low-pressure relief valve.

The Bushing Check Valve thread sizes are designated by two sets of numbers; the first being the male thread, that second the females' thread. NPT threads are per ASME B1.201. Also available with ISO 7 “R” (R male x Rp female) threads (BR)

CATALOG PAGE DOWNLOAD

Bushing-Check-Valve-Style.jpg
CONNECTOR CHECK VALVE STYLE CN, CR

The Connector (CN, CR) valve is a spring loaded check valve with a pipe nipple or connector housing. It is designed to be used in installations where a check valve with male pipe threads are required. The Connector check valve is adaptable for use as vacuum breaker, or low-pressure relief valve. Two valves used in combination make an excellent pressure vacuum vent. NPT threads are per ASME B1.20.1. This spring check valve is also available with ISO 7 “R” threads (CR) making it easily adaptable to any male threaded pipe connection.

CATALOG PAGE DOWNLOAD

CN.jpg
MINI-CHECK VALVE STYLE M1, M8

The Mini-Check is designed for minimum pressure drop. The three piece construction permits many combinations of end fittings, which makes the valve adaptable for nearly every application. The Mini-Check is available with 1/8, 1/4, and 3/8 inch pipe threads, both male and female. It can also be supplied with a 1/8, 1/4 or 3/8 inch tubing end on one side and with a pipe thread end on the other just by changing the end fitting. Combinations of male and female threads are also available. The Mini-Check can also be used as a low-pressure relief valve or vacuum breaker by using the desired spring settings. Many valves in this series can be supplied with B16.34 certification.

CATALOG PAGE DOWNLOAD

M1-1.jpg
UNIVERSAL HIGH-PRESSURE CHECK VALVE STYLE U1, R1

The Universal High Pressure (U1, R1) check valve is a one-piece body machined from bar stock with female pipe threads. This valve is normally supplied with a “metal-to-metal” seat. NPT threads are per ASME B1.20.1 and also available with ISO 7 “Rp” threads. (R1). The valve is designed and manufactured for high pressure applications. For applications below 3000 PSIG view the UN-3. Many valves in this series can be supplied with B16.34 certification.

CATALOG PAGE DOWNLOAD

U1J.2-Photoshop-e1571926900192.png
UNIVERSAL LOW-PRESSURE CHECK VALVE STYLE U3, UR

The Universal Low Pressure (U3, UR) female threaded check valve is a one-piece body machined from bar stock and is designed for minimum pressure drop. The valve is light-weight, compact, and provides maintenance-free dependable service. NPT threads are per ASME B1.20.1 and this valve is also available with ISO 7 “Rp” threads (UR). For applications above 3000 PSIG, view UN-10 series. For applications where weld joint are required view our UN-SW series. Many valves in this series can be supplied with B16.34 certification.

CATALOG PAGE DOWNLOAD

U3_66.png
 
3-A SANITARY CHECK VALVE STYLE 3S

All 316/316L stainless steel insert check valve with a standard 32 Ra or better finish, for use in new or existing sanitary systems. Our 3S design seals on the ID of sanitary ferrules with 3-A specified materials (standard is EPDM). This check valve seals inside fittings such as Alfa Laval Inc. Bevel Seat, and Tri-Clamp®, Q-Line, and S-Line and others with ID dimensions equal to the “F” dimensions listed below under Size & Dimensions. The valve is designed to be easily disassembled for cleaning and spare parts are available. Compact 3S fits inside a single set of ferrules, (ferrules not included) and requires no additional space in the line. The insert design makes it extremely economical when compared to full-bodied valves. We offer a wide variety of seat materials and cracking pressure springs allows this series to be used as a check valve or vacuum breaker. Please specify when ordering. 

PED Compliance Statement: Due to the unique “insert” design of our 3S, SC, CB, TC, SI, & UV, style check valves, they do not constitute an “identifiable pressure bearing housing” as defined in PED Guideline 1/8. These styles must be installed into either ferrules or fittings to create a pressure bearing housing. Instead, they are classified as “components of pressure equipment” as defined in PED Guideline 1/8. As a result, these valves can be sold in the European Community and no CE Mark is required.

In addition applications where the maximum allowed operating pressure is 0.5 bar (7.2 psi) or less, do not fall under the PED, regardless of the valve style.

CATALOG PAGE DOWNLOAD

3-A-Sanitary-Check-Valve-Style.jpg
SANITARY CARTRIDGE CHECK VALVE STYLE SC

Sanitary Cartridge Valve (SC) is a stainless steel check valve for use in new or existing sanitary systems. The SC design seals on the ID of sanitary ferrules with replaceable food grade seals (Standard is FDA EPDM). The valves fits the Alfa Laval Inc. Bevel Seat and Tri-Clamp® fittings, the Waukesha Cherry Burrell® Q-Line and S-Line fittings, and others with ID dimensions equal to the “F” dimension listed in the Sizes & Dimensions. The compact SC design fits inside a single fitting and requires no additional space in the line. Its size makes it extremely economical when compared to full-bodied valves. Choose from Check-All’s broad selection of Seat Materials Cracking Pressure Options that allow this series to be used as a check valve, relief valve, or a vacuum breaker.
Note: USP Class VI o-rings can be supplied with certification.

PED Compliance Statement: Due to the unique “insert” design of our 3S, SC, CB, TC, SI, & UV, style check valves, they do not constitute an “identifiable pressure bearing housing” as defined in PED Guideline 1/8. These styles must be installed into either ferrules or fittings to create a pressure bearing housing. Instead, they are classified as “components of pressure equipment” as defined in PED Guideline 1/8. As a result, these valves can be sold in the European Community and no CE Mark is required.

CATALOG PAGE DOWNLOAD

SCwk6.jpg
SANITARY INSERT CHECK VALVE STYLE CB, TC

For over 50 years, the compact, fluoropolymer (PTFE/FEP/PFA), Sanitary Insert Valve has been used as the most economical solution to providing a check valve in a new or existing sanitary piping system. This valve style is designed to fit into grooved-end clamp-type fittings. Since the Sanitary Insert Valve replaces the gasket normally used with clamp joints, no extra space is required to accommodate the valve.

Two different types of Sanitary Insert Valves are available. They are distinguished by the following designations in their part numbers:

TC – Designates Tri-Clamp® fittings manufactured by Alfa Laval Inc. as well as Waukesha Cherry-Burrell® S-Line Series of fittings.

CB – Designates the Waukesha Cherry-Burrell® Q-Line Series of fittings.
NOTE: Sanitary Insert Valve Types TC and CB are NOT interchangeable!
PED Compliance Statement: Due to the unique “insert” design of our 3S, SC, CB, TC, SI, & UV, style check valves, they do not constitute an “identifiable pressure bearing housing” as defined in PED Guideline 1/8. These styles must be installed into either ferrules or fittings to create a pressure bearing housing. Instead, they are classified as “components of pressure equipment” as defined in PED Guideline 1/8. As a result, these valves can be sold in the European Community and no CE Mark is required. In addition applications where the maximum allowed operating pressure is 0.5 bar (7.2 psi) or less, do not fall under the PED, regardless of the valve style.

CATALOG PAGE DOWNLOAD

tck6.jpg
 
BUTT WELD CHECK VALVE STYLE - B4, B8

The Butt Weld (B4, B8) check valve is a one-piece body machined from bar stock, eliminating porosity concerns and providing uniform density for more consistent welds. Made to ASME/ANSI B16.25 for schedule 40 pipe (B4), or schedule 80 pipe (B8) it carries rugged, dependable Check-All trim with a wide variety of seat materials and cracking pressures to choose from.
Note: Please take sufficient measures when welding to prevent heat build-up and possible damage to the valve sea

CATALOG PAGE DOWNLOAD

B4.png
UNIVERSAL SOCKET WELD CHECK VALVE STYLE - US

The Universal Socket Weld (US) check valve is a one-piece body machined from bar stock with socket weld ends and designed for a minimum pressure drop. It carries rugged, dependable Check-All trim and there are a wide variety of seat materials and cracking pressures to choose from. This valve series is particularly attractive when weld joints are required. The socket ends are machined to ASME/ANSI B16.11 dimensions.
Note: Please take precautionary measures when welding to prevent heat build-up and possible damage to the valve seat.

CATALOG PAGE DOWNLOAD

US.png
TUBING CHECK VALVE STYLE - TV

The Tubing Check (TV) check valve is constructed with compression tube fittings (flareless) and is designed for a minimum pressure drop. The valves are furnished complete with ferrules and nuts. The TV valve can also be used as a low-pressure relief valve or vacuum breaker by using the desired spring settings. Many valves in this series can be supplied with B16.34 certification.

CATALOG PAGE DOWNLOAD

TUBING CHECK VALVE, FLARED STYLE - TF

The Tubing Check Valve-Flared (TF) is a three piece constructed check valve with 37º flared end fittings that conform to SAE J514 & ISO 8434-2. These valves are designed for maximum flow with minimal pressure drop. Many valves in this series can be supplied with B16.34 certification.

CATALOG PAGE DOWNLOAD

TV6.jpg
TF6.jpg
HORIZONTAL, VERTICAL, FLANGED & DRILLED CHECK VALVE STYLE - PTFE LINED STYLE - HT

The Check-All Flanged & Drilled – Fluoropolymer PTFE Lined (HT) check valve is a one-piece body valve with ANSI/ASME B16.5 Class 150 flanged ends. The valve has a solid one-piece PTFE liner, which covers the flange faces out to the raised face diameter. All wetted surfaces are fluoropolymer (PTFE/FEP/PFA) including the FEP encapsulated stainless steel spring. Style HT bodies are made of cast Carbon Steel only. The liner is made of virgin PTFE. It is installed as one solid piece of PTFE and the internal geometrical shape is machined. The PTFE liner has a minimum wall thickness of 3/32 inch which guarantees against pin holes which can be present in fused liners.

CATALOG PAGE DOWNLOAD

HV5.jpg
LINED PIPE INSERT CHECK VALVE STYLE - LP

The Lined Pipe Insert (LP) spring check valve is designed to mate between two flanges on most lined pipe systems. It provides the simplest most economical way to install a check valve in a lined piping system. No gaskets are required; just spread the flanges, center the valve and bolt the flanges together. LP valves are available in fluoropolymer (PTFE/FEP/PFA) and Alloy C-276 to satisfy the most demanding applications. The standard spring material is Alloy C-276. Other materials are available upon request.

CATALOG PAGE DOWNLOAD

LP6.png
CUSTOM DESIGN SPRING CHECK VALVE - CAV

The CAV series of custom design spring check valves are not catalog items but rather are custom designed and tailored to meet customer specific connections or valve configurations. If you have a check valve application where our standard catalog items do not quite match what you are looking for, contact our sales department to discuss your specific needs. 

STRAIGHT-SIDED INSERT CHECK VALVE STYLE - SI

The Straight Sided Insert (SI) is a thread less check valve designed to be inserted into any cavity where a check valve is needed and threads are not desired. The SI valve can be used as a low-pressure relief valve or vacuum breaker by using the desired spring settings.

PED Compliance Statement: Due to the unique “insert” design of our 3S, SC, CB, TC, SI, & UV, style check valves, they do not constitute an “identifiable pressure bearing housing” as defined in PED Guideline 1/8. These styles must be installed into either ferrules or fittings to create a pressure bearing housing. Instead, they are classified as “components of pressure equipment” as defined in PED Guideline 1/8. As a result, these valves can be sold in the European Community and no CE Mark is required.

In addition applications where the maximum allowed operating pressure is 0.5 bar (7.2 psi) or less, do not fall under the PED, regardless of the valve style.

CATALOG PAGE DOWNLOAD

CAV1.png
SI66.png
UNION INSERT CHECK VALVE STYLE - UV

The Union Insert (UV) valve is the threaded pipe counterpart of the Flange Insert Valve. Designed to be inserted into most standard and hammer type ground joint unions, it provides the simplest and most economical way to install a check valve in a threaded pipe system. A check valve may be installed anywhere in the system where there is a union. The valve works equally well in either a horizontal or vertical position with proper spring selection. Each Union Insert Valve is furnished with a metal tag, which is quickly attached to the union. This provides a permanent visual notification that the union contains a check valve.
Bore of union must be equal to I.D. of schedule 40 pipe. Use ground joint unions with 45 degree seats only (union not included).

PED Compliance Statement: Due to the unique “insert” design of our 3S, SC, CB, TC, SI, & UV, style check valves, they do not constitute an “identifiable pressure bearing housing” as defined in PED Guideline 1/8. These styles must be installed into either ferrules or fittings to create a pressure bearing housing. Instead, they are classified as “components of pressure equipment” as defined in PED Guideline 1/8. As a result, these valves can be sold in the European Community and no CE Mark is required.

In addition applications where the maximum allowed operating pressure is 0.5 bar (7.2 psi) or less, do not fall under the PED, regardless of the valve style.

CATALOG PAGE DOWNLOAD

UV.jpg
VACUUM FLANGE INSERT CHECK VALVE STYLE - VI

The Vacuum Flange Insert (VI) is a vacuum check valve designed to fit between ISO/NW/KF/QF vacuum flanges designed in accordance with DIN 28403, DIN 28404, ISO 1609, and ISO 2861. It is both a centering ring and a check valve. The compact design requires no additional space in the line. Its size makes it extremely economical when compared to full-bodied valves.
The VI valve can also be used as a low-pressure relief valve under either positive or vacuum conditions by using the desired spring setting.

NOTE: USP Class VI o-rings can be supplied with certification.

CATALOG PAGE DOWNLOAD

newVI.jpg