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Cryo Supplies

Cryogenic Dewar Flasks

High Capacity Dewar Refrigerator
NEW High Capacity
Dewar Refrigerator

NEW Foam
Cryo Dewars
Large Cryogenic Dewar Flasks
Large
Lab Grade Dewar Flasks
Lab Grade
Low Form Dewar Flasks
Low Form
Dewar Flasks with Handles
with Handles


Large Cryogenic Dewar Flasks

Superior vacuum performance and insulation provide maximum holding times

Sealed vacuum space between inner and outer shells. Outer shell is constructed of durable, lightweight aluminum. Vacuum space is filled with technologically advanced insulation. Thermally insulated necktube core minimizes liquid nitrogen loss. Sturdy aluminum interior.

Family of Dewar Flasks

The LD series of cryogenic dewars is designed for storing and dispensing small amounts of liquid nitrogen in material science and biological cryo labs. The series includes a beaker style dewar with a wide mouth and pitcher style model for easy pouring.



Specifications
Capacity/liters 4 5 10 25 Classic 25 35 50
Neck I.D. 1.2" 5.6" 2.0" 2.5" 2.0" 2.5" 2.5"
Static holding time/days 10 6 45 109 119 152 122
Evaporation/liters/day 0.40 0.77 0.22 0.23 0.21 0.23 0.41
Dimensions Height 17.0" 17.5" 23.5" 25.8" 22.9" 26.3" 32.4"
O.D. 7.6" 7.6" 11.4" 15.6" 15.5" 18.8" 18.8"
Weight empty 6.6lb 6.9lb 14.5lb 23.2lb 19lb 35.1lb 38.7lb
Weight full 13.7lb 15.8lb 32.3lb 67.7lb 63.5lb 97.4lb 127.7lb


Accessories

Cryogenic Dewar flask roller stand
Roller Base
Liquid Withdrawal Device
Liquid Withdrawal Device
  Cryogenic Dewar Flask roller/tipping stand
Tipping Stand
Dipper for LN2 Dewars
Dipper
Liquid Phase Separator for LN2 Dewars
Liquid
Phase
Separator
Safe Handling of Liquid Nitrogen


Storage Dewars Tipping Stand
Tipping stand supports the weight of the Dewar while you safely tip the unit. Easily move storage Dewars with sturdy cast aluminum frame. Unit has five wheels with ball-bearing swivel casters. Use with Dewars with 15.4" diameter base

Prod # Description Unit Price Order / Quote
Large Dewar Flasks:
81750-4 Cryo Dewar Flask, 4 Liters each $862.15
Qty:
81750-5 Cryo Dewar Flask, 5 Liters each 753.15
Qty:
81750-10 Cryo Dewar Flask, 10 Liters each 792.00
Qty:
81750-25 Cryo Dewar Flask, 25 Liters each 1084.00
Qty:
81750-25C Cryo Dewar Flask, 25 Liters, Classic Design each 1316.95
Qty:
81750-35 Cryo Dewar Flask, 35 Liters each 1372.00
Qty:
81750-50 Cryo Dewar Flask, 50 Liters each 1811.70
Qty:
Large Dewar Accessories:
81750-25-1 Roller Base for 25 Liter Flask each 288.00
Qty:
81750-25-1C Roller Base for 25 Liter Flask, Classic Design each 285.00
Qty:
81750-35-1 Roller Base for 35 and 50 Liter Flask each 329.85
Qty:
81750-25-2 Tipping Stand for 25 Liter Flask each 1122.30
Qty:
81750-25-3 Dipper each 107.15
Qty:
81750-25-4 Liquid Withdrawal Device each 1053.60
Qty:
81750-25-5 Liquid Phase Separator, 31.75 x 25.4 x 9.53mm (1-1/4" x 1" x 3/8") each 107.00
Qty:




High Capacity Dewar Refrigerator for Cryo Specimen Storage

NEW High Capacity Dewar Refrigerator for Cryo Specimen Storage

The High Capacity (HC) Series Dewar Refrigerators by Worthington Industries (formerly Taylor-Wharton) are designed for storing large quantities of a variety of materials at or close to liquid nitrogen temperature. The VHC35 model is convenient for storing frozen samples in a cryo-EM lab. VHC35 dewar features a wide 4.7in diameter neck for better visibility and easier access and six 3.7in wide canisters (with a possibility to add a seventh canister for extra storage capacity), all in a relatively compact form. A 10 or 4 liter dewar flask (#81750-10, 81750-4) can be used to conveniently maintain the level of liquid nitrogen without disturbing the stored samples. A special roller base (#81750-35-1) greatly helps with mobility.


Prod # Description Unit Price Order / Quote
81750-35VHC Cryo Dewar Specimen Storage Refrigerator, VHC35 each $2167.00
Qty:



Benchtop Dewars for Storage, Transfer, Immersion
and Cryogenic Research

Manufactured for service of Liquid Nitrogen
Standard lab sizes for benchtop use
Fully silvered borosilicate glass
Aluminum base with sealed evacuated tip
For optimum results temper the Dewar per instructions

Pope Dewars are ideal for temporary storage of Liquid Nitrogen in laboratory settings. These Dewars are the lab standard in glass lined, fully silvered Dewars. They are readily available in a variety of standard shapes and numerous sizes. We have cylindrical, narrow-mouth, hemispherical, along with convenient low-form shallow styles. Extended base and handle versions are also available.

Low Form Shallow open top Dewars in Cylindrical and Hemispherical configurations are available in popular sizes to match standard flask sizes. Fully silvered glass Dewars are based with tip-offs off center for use with stirrers.

The traditional Lab Grade Dewar line encompasses a full range of sizes of fully silvered, glass double-walled evacuated flasks. The wide mouth cylindrical Dewar is available with a choice of either protective mesh or extended aluminum housing and also the popular narrow mouth spherical configuration. Lab Grade Dewars for benchtop use come with polyethylene lids.

Handled Lab Grade Dewar offers a complete Lab Grade Dewar at an affordable price. The most popular wide mouth cylindrical Dewars are manufactured with a full extended aluminum base, full exposed lip and attached handle to facilitate portability, safety and convenience.

Low Form Dewars

Lowform Cryogenic Dewar Flask

Pope Low Form Shallow (open design - no lid) Dewars permit essential operations not practical with standard cylindrical or spherical Dewars.

These operations include:
  • Rapid freezing and recovery of tissue/organ specimens
  • Insertion of small flasks in Dewar
  • Agitation in flask with magnetic stirrer
  • Tempering of stirring rods, pestles and other small objects

The protective aluminum bases on both styles extend the full height of the Dewars. Note that protected vacuum tip-off tubulations are offset to the side to minimize space between the Dewar bottoms and magnetic stirrers. The hemispherical line has been expanded to provide additional Dewars to fit larger flask sizes.

Lowform Cryogenic Dewar Flask Lowform Cryogenic Dewar Flask Lowform Cryogenic Dewar Flask

Economies in coolant use will be realized in all operations where Pope Low Form Shallow Dewars are more practical. Cooling range from dry ice/acetone to liquid nitrogen. Pope Low Form Shallow Dewars are available in several sizes and two configurations, hemispherical and cylindrical (with semi-flat bottom). The cylindrical configuration increases coolant capacity. Holding time 2-6 hours depending on volume.

PART# Dewar Description Type Model Protective Covering ID mm Inside Depth mm OD mm Total Height mm Flask ml
81740-10 600ml
Full Base
Hemispherical Low Form Full Aluminum 140 65 165 95 500
81740-20 1000ml
Full Base
Hemispherical Low Form Full Aluminum 160 88 186 119 1000
81740-30 350ml
Full Base
Cylindrical Low Form Full Aluminum 80 75 101 117 100
81740-40 850ml
Full Base
Cylindrical Low Form Full Aluminum 130 75 160 110 500

Prod # Description Unit Price Order / Quote
81740-10 600ml Dewar, Full Base, Hemispherical each $339.25
Qty:
81740-20 1000ml Dewar, Full Base, Hemispherical each 406.15
Qty:
81740-30 350ml Dewar, Full Base, Cylindrical each 300.00
Qty:
81740-40 850ml Dewar, Full Base, Cylindrical each 364.65
Qty:



Foam Cryo Dewars

NEW Foam Cryo Dewars

Foam dewars provide a neat and handy alternative to heavier vessels or the commonly utilized styrofoam shipping containers. The special foam material is chemically inert and mechanically durable enough to be exposed directly to liquid nitrogen, without leaking or degrading. Patented design makes the foam vessel easier to handle and safer to use than a traditional low profile glass dewar. Because of its lower thermal mass, a foam vessel will cause less liquid nitrogen boiling when it is filled. The foam surface will also accumulate less frost. As a result, less liquid nitrogen is consumed.

Available as 500ml, 800ml and 1400ml Cryo Cups featuring convenient protruding handle, a Tall (1800ml) vessel, and a Mini (130ml) vessel.


Prod # Description Unit Price Order / Quote
81760-500 Foam Cryo cup, Small (500ml) each $87.00
Qty:
81760-800 Foam Cryo cup, Medium (800ml) each 100.00
Qty:
81760-1400 Foam Cryo cup, Large (1400ml) each 164.00
Qty:
81760-1800 Foam Cryo cup, Tall (1800ml) each 185.00
Qty:
81760-130 Foam Cryo cup, Mini (130ml) each 50.00
Qty:




Lab Grade Dewars

Labgrade Cryogenic Dewar Flasks
  • Efficiency assured by rigid bakeout and evacuation control (evacuated to 10-5 torr or better).
  • Evacuation tip completely shielded for increased protection.
  • Weighted bases on all models for stability.
  • Optional full length metal housing on most models for added protection.
  • No pads between walls on cylindrical Dewars eliminating this heat transfer potential.
  • Supplied polyethylene stopper tops off Dewars to minimize evaporation.
  • Holding time 2-6 hours depending on volume.

Pope Lab Grade Dewars are rated the most efficient glass Dewars in the World. Designed for use with Liquid Nitrogen, this superior ranking is due to rigid quality controls in manufacture and a number of outstanding design and manufacturing features.

The protective aluminum bases on both styles extend the full height of the Dewars. Note that protected vacuum tip-off tubulations are offset to the side to minimize space between the Dewar bottoms and magnetic stirrers.

PART# Dewar Description Type Model Protective Covering ID mm Inside Depth mm OD mm Total Height mm
81740-50 350ml
Standard Base
Cylindrical,
Wide Mouth
Lab Grade Mesh 70 125 86 157
81740-50-5 350ml
Full Base
Cylindrical,
Wide Mouth
Lab Grade Full Aluminum 70 125 86 157
81740-60 665ml
Standard Base
Cylindrical,
Wide Mouth
Lab Grade Mesh 70 195 86 241
81740-60-5 665ml
Full Base
Cylindrical,
Wide Mouth
Lab Grade Full Aluminum 70 195 86 241
81740-70 1000ml
Standard Base
Cylindrical,
Wide Mouth
Lab Grade Mesh 70 302 86 337
81740-70-5 1000ml
Full Base
Cylindrical,
Wide Mouth
Lab Grade Full Aluminum 70 302 86 337


Labgrade Cryogenic Dewar Flasks

Standard Base

Standard Wide Mouth Cylindrical Dewars

These Dewars exemplify the emphasis placed on both efficiency and safety by Pope Scientific. All Pope Lab Grade Dewars are manufactured of borosilicate glass for liquid nitrogen service. A sturdy mesh cover facilitates a firm grip, provides a cushion against bumping and increases protection. Holding time 2-6 hours depending on volume.
Labgrade Cryogenic Dewar Flasks

Full Base

Full Length Aluminum Housing Cylindrical Dewars

All Wide Mouth models can be obtained with an exterior metal housing that extends nearly to the top rim of the Dewar (a slight extension of the glass Dewar facilitates pouring). This housing adds the safety of metal to the efficiency of glass, particularly important in handling operations. Holding time 2-6 hours depending on volume.

Prod # Description Unit Price Order / Quote
81740-50 350ml Dewar, Std. Base, Cylindrical, Wide Mouth each $143.10
Qty:
81740-50-5 350ml Dewar, Full BaseCylindrical, Wide Mouth each 148.85
Qty:
81740-60 665ml Dewar, Std. Base, Cylindrical, Wide Mouth each 140.80
Qty:
81740-60-5 665ml Dewar, Full Base, Cylindrical, Wide Mouth each 152.30
Qty:
81740-70 1000ml Dewar, Std. Base, Cylindrical, Wide Mouth each 151.15
Qty:
81740-70-5 1000ml Dewar, Full Base, Cylindrical, Wide Mouth each 156.95
Qty:
81740-07 Replacement Dewar Stopper Ø70mm each 10.75
Qty:




Dewars With Handles

Dewars With Handles Dewars With Handles
  • Aluminum metal housing extends full length of Dewar for added protection.
  • The Dewar lip is extended to facilitate pouring.
  • Polyethylene stopper, specially vented, minimizes evaporation.
  • Holding time 2-6 hours depending on volume.

These dewars are ideal for temporary storage of liquid gas in laboratory settings. These flasks incorporate the convenience of a coated handle on the most popular wide mouth cylindrical models.

These Dewars are priced only slightly higher than the standard models and afford the increased portability, pouring efficiency and added protection. All the features in one complete Dewar!

PART# Dewar Description Type Model Protective Covering ID mm Inside Depth mm OD mm Total Height mm
81740-80 350ml Full Base w/Metal Handle Cylindrical,
Wide Mouth, Glass Lined
Lab Grade Full Aluminum 70 125 86 157
81740-85 1000ml Full Base w/Metal Handle Cylindrical,
Wide Mouth, Glass Lined
Lab Grade Full Aluminum 70 302 86 337
81740-90 1900ml Full Base w/Metal Handle Cylindrical,
Wide Mouth, Glass Lined
Lab Grade Full Aluminum 120 190 150 252

Prod # Description Unit Price Order / Quote
81740-80 350ml Dewar, Full Base with Handle, Cylindrical, Wide Mouth each $201.95
Qty:
81740-85 1000ml Dewar, Full Base with Handle, Cylindrical, Wide Mouth each 193.85
Qty:
81740-90 1900ml Dewar, Full Base with Handle, Cylindrical, Wide Mouth each 416.55
Qty:
81740-07 Replacement Dewar Stopper Ø70mm each 10.75
Qty:
81740-12 Replacement Dewar Stopper Ø120mm each 14.20
Qty: