CRISPIN VALVE

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Air Release Valves for Sewage

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Air & Vacuum Sewer Valves

Crispin Air & Vacuum Sewer Valves have a long body with a float near the bottom. The waste-containing solid remains low and away from working parts, venting the pipe line when filling, and permitting air to re-enter to relieve the vacuum.

Features:

- Exhausts air as a pipeline fills, and allows air in as pipeline fills
- Standard and short body series available

Standard Materials:

- Cast iron with stainless steel trim
- Buna-N rubber seat
- Optional backflush attachment

Sizes: 2`` through 10`` available

Pressure Sewer Valves

Pressure Air Release Valves have a long body to keep liquid waste and solids away from working parts. These valves vent accumulations of air and gas while the system is in operation and under pressure.

Features:

- Helps prevent system shutdown
- Standard, high capacity and short series available

Standard Materials:

- Cast iron with stainless steel trim
- Optional backflush attachment available

Sizes: Standard: 2`` through 4`` available

Combination (Dual) Sewer Valves

Air & Vacuum Sewer Valves and Pressure Sewer Air Release Valves are piped together to perform a dual function at the high point on a line. After the Air & Vacuum Sewer Valve relieves the large volume of air in the line and seats, the Pressure Sewer Valve continues to release entrapped air and gas accumulations.

Features:

- Standard and high capacity series available
- Short body style available

Standard Materials:

- Cast iron with Stainless Steel trim
- Backflushing attachment optional

Sizes: 2`` through 10`` available

Universal Sewer Valves

The Universal Sewer Air Release Valve performs the function of both the Air and Vacuum and Pressure Sewer Valves. This is accomplished all in one valve body.

Features:

- Helps prevent system shutdown
- Single unit integrity
- Standard and short body series available

Standard Materials:

- Cast iron with stainless steel trim
- Optional backflush attachment available

Sizes: 2`` through 6`` available

K-Flo Butterfly Valves

Crispin is proud to announce the acquisition of the K-Flo Butterfly Valve from Dezurik Water Controls of Sartell, MN. This valve line, which features 2 designs and ranges in size from 3`` up to 108``, is fully compliant with AWWA C504 standards. Often referred to as the Wolverine valve line, K-Flo valves have more than 50 years of service in the industry.

The X Series Valves

Available in Air & Vacuum, Pressure Air Release and Combination assemblies, the X Series features our exclusive Head Exchange System, with its head-fixed stainless steel valve internals. To clean, simply loosen the head assembly, which is sealed in place by a sanitary stainless clamp fitting. Pull out the original head, which weighs less than 10lbs, and pop in a spare. Meets ANSI/AWWA C512.

Features:

- Head-Fixed Internals and Head Exchange System
- Revolutionary Design

Standard Materials:

- All parts are 316 Stainless Steel

Sizes: 2``-6``

CHECK VALVES

Foot Valves

Installed on the pump suction, Crispin Foot Valves prevent the pump column from draining upon pump shutdown. Silent during operating and normally closed, the valve has a center-guided disc with a Buna-N seat to provide a drip tight seal.

Features:

- Resilient seat provides positive shut off
- Full flow area
- Rugged construction for long life

Standard Materials:

- Cast iron body
- Bronze disc and seat ring
- Stainless steel spring and inlet screen
- Buna-N resilient seat

Sizes: 2`` through 36`` available

Globe Silent Check Valves

Mounted vertically or horizontally, these valves are designed to close before the pump stops, preventing flow reversal, and eliminating water hammer and system surges.

Features:

- Fully automatic
- Spring-loaded
- Double-guided
- Maximum temperature rating: 150 F (65 C)

Standard Materials:

- Cast iron body
- Bronze trim and stainless steel spring

Sizes: 2 1/2`` through 36`` available

Rubber Flapper Valves

A versatile and cost-effective solution, the Rubber Flapper Check valve provides a smaller stroke than conventional swing check valves, reducing slamming while offering a strong, quick seal.

Features:

- 45 degree seat angle reduces slamming
- Virtually maintenance-free
- Drip tight seating

Standard Materials:

- 65-45-12 ductile iron body
- Steel reinforced Buna-N rubber flapper
- Epoxy coating inside and out
- a variety of options are available

Sizes: 2`` through 24`` available

``SWC`` Swing Check Valves

The SWC Series provides users of Crispin products with an AWWA-C-508-1 solution for more arduous check valve applications, including sewage and slurry.

Features:

- Large diameter pivot shaft construction
- Accepts Air Cushion and Oil Control devices
- Ideal for sewage and slurry
- Available in class 125 and 250
- 316 stainless steel seat standard
- Sizes 2`` through 48``

Tilting Disc Valves

The Crispin Tilting Disc Valve uses superior design and function to provide the most efficient and solid approach to controlling flow reversal, with a head loss lower than that of most any other check valve made.

Features:

- 55Þ seat angle #125 and #250 ratings available
- 40% size increase through seat
- Field replaceable seat
- Optional Bottom and Top Size Dashpots

Standard Materials:

- Cast iron body
- Stainless steel seat rings, pivot pins and bushings
- Epoxy coating inside and out

Sizes: 2`` through 72`` available

Surge Check Valves

Surge Check valves are used on the inlet of the Air and Vacuum, Deep Well, Combination, Dual and Universal Valves to help prevent damage when surges occur.

Features:

- Limits effects of system surge on Air Release Valves
- 125lb and 250lb ANSI flanged
- Ideal for sewage and solids-containing applications

Standard Materials:

- Cast iron construction
- Bronze valve disc, bronze seat ring and stainless steel spring

Sizes: 3`` through 36`` available

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Air Release Valves for Clean Water

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Air & Vacuum Valves

Air & Vacuum valves are designed to vent large quantities of air when filling pipelines, and to allow air to re-enter pipelines when draining to prevent vacuum collapse.

Features:

- Meets AWWA C-512 standards
- Peripheral guide system for unobstructed closure
- Drip tight closure

Standard Materials:

- Cast iron body with stainless steel trim
- Standard Buna-N seating material
- Optional materials and parts available

Sizes:

- 1/2`` through 24`` available

Combination Air Valves

Combination Air Valves consist of Air and Vacuum Valves and a Pressure Valve mounted in a single body, providing the integrity of a single body casting while permitting each valve of the combination to operate as a separate unit.

Features:

- Single unit integrity when both Air & Vacuum and Pressure Valves are required at one point on a pipeline
- Meets AWWA C-512

Standard Materials:

- Features standard materials offered with Air and Vacuum and Pressure Valves

Sizes:

- 1/2`` through 24`` available

Dual Air Valves

Dual Air Valves are offered with a Pressure Air Valve piped out of the side of an Air & Vacuum Valve, providing a variety of combinations to meet specific air release requirements.

Features:

- Single pipeline location when both Air & Vacuum and Pressure Valves are required at one point on a pipeline
- Meets AWWA C-512 Standards

Standard Materials:

- Features same standard materials as Air &Vacuum and Pressure Valves

Sizes:

- 1/2`` through 24`` available

Deep Well Valves

Deep Well Air Valves have an adjustable top which controls the velocity of air discharged from the valve. It also helps prevent float chatter, and premature closure of the valve mounted on the discharge side of the pump.

Features:

- Peripheral guide system for unobstructed closure
- Vents air from the pump column at the discharge point ahead of a check or control valve

Standard Materials:

- Cast iron body with stainless steel trim
- Standard Buna-N seating material
- Bronze trim and stainless steel float also available

Sizes:

- 1/2`` through 6`` available
- Additional sizes available with Surge Check option

Foot Valves

Installed on the pump suction, Crispin Foot Valves prevent the pump c

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Products


Air & Vacuum Valves

Air and vacuum valves are designed to vent large quantities of air when filling pipelines, and to allow air to re-enter pipelines when draining to prevent vacuum collapse.


Combination Air Valves

Combination Air Valves consist of Air and Vacuum Valves and a Pressure Valve mounted in a single body, providing the integrity of a single body casting while permitting each valve of the combination to operate as a separ


Deep Well Air Valves

Deep Well Air Valves have an adjustable top which controls the velocity of air discharged from the valve. It also helps prevent float chatter, and premature closure of the valve mounted on the discharge side of the pump.


Dual Air Valves

Dual Air Valves are offered with a Pressure Air Valve piped out of the side of an Air & Vacuum Valve, providing a variety of combinations to meet specific air release requirements.


Foot Valves

Installed on the pump suction, Crispin foot valves prevent the pump column from draining upon pump shutdown. Silent during operating and normally closed, the valve has a center-guided disc with a Buna-N seat to provide a


K-Flo Butterfly Valves

Crispin is proud to announce the acquisition of the K-Flo Butterfly Valve from Dezurik Water Controls of Sartell, MN. This valve line, which features 2 designs and ranges in size from 3`` up to 108``, is fully compliant


Rubber Flapper Valve

A versatile and cost-effective solution, the Rubber Flapper Check valve provides a smaller stroke than conventional swing check valves, reducing slamming while offering a strong, quick seal.


The X Series Valve

Available in air & vacuum, pressure air release and combination assemblies, the X Series features our exclusive Head Exchange System, with its head-fixed stainless steel valve internals. To clean, simply loosen the head

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