Request Quote | Specification sheet | FAQ | Reference List

Schollander Pressure Bomb Grommets

Grommets (second row from the top)

Starting from the left, the first Grommet, a solid Grommet (no hole), can be used for testing the system for leakage or to make your own Grommet. The next five Grommets are used for testing petioles from the size of pine needles up to thick leaves, selection based on the size of the petiole to be tested. The last item in the row, with the very large hole, is a Grommet that accepts the sealing sleeves shown in the very top top row.

Rather than disassembling the specimen holder for each test, the sealing sleeves can be quickly taken in and out of the Grommet for fast sampling.

The Grommets with slits in them (third row from the top) are usually used for testing large leaves or grass blades.

The G4 Series Brass Support Washers are used in conjunction with the Grommets to protect the Grommets when the knob is tightened, thereby providing equal pressure over the entire surface of the Grommet. The Support Washers also prevent the Grommet from being pushed out of the specimen holder when pressurized.

NOTE: The G4 Series Sealing Sleeves, Grommets and Washers can only be used with the G4 Specimen Holder.

G4 Specimen holder (general purpose)

The G4 Specimen Holder is a General Purpose Holder. It can be set up to accept round petioles from 0.79 mm diameter to 12.7 mm diameter; for short petioles from 10 mm long; and for blade-type leaves up to 12.7 mm wide and on midvein of larger leaves. Above are the range of Grommets, Sealing Sleeves, and Support Washers used with the Plant Water Status Console using the G4 Specimen Holder.

The items shown in the top row are called Sealing Sleeves; items in the second row are Grommets for use with petioles; items in the third row are Grommets for use with leaves or grasses; and the brass items shown at the bottom of the photograph are called Support Washers.

G2 Specimen holder (used for blade-type leaves)

The G2 Specimen Holder is used specifically for blade-type leaves up to 25.4 mm in width. Fig. 3 above shows the G2 Series Grommets and Support Washers.

The items shown in the top row of Fig. 3, are called Grommets for use with broad leaves or grasses; and the brass items shown at the bottom of the photograph are called Support Washers.

NOTE: The 3017G2 Series Grommets can only be used with the G2 Specimen Holder.

Parts and Kits

All grommets, sleeves, and washers can be purchased in individual packs of 5 or as part of a Kit of the various sizes. See list below for options:

G4 Series Sealing Sleeves (For round petioles from 0.79 mm to 12.7 mm diameter)

Part No.	Weight	Description
3018G4-000K1	0.02 kgs	Sealing sleeve, 12.7 mm O.D., no hole, 5 Pack
3018G4-001K1	0.02 kgs	Sealing sleeve, 12.7 mm O.D., 1.59 mm diameter hole, 5 Pack
3018G4-002K1	0.02 kgs	Sealing sleeve, 12.7 mm O.D., 3.18 mm diameter hole, 5 Pack
3018G4-003K1	0.02 kgs	Sealing sleeve, 12.7 mm O.D., 4.76 mm diameter hole, 5 Pack
3018G4-004K1	0.02 kgs	Sealing sleeve, 12.7 mm O.D., 6.35 mm diameter hole, 5 Pack

G4 Series Stem Grommets (For leaf specimens with short petioles 1 cm long or somewhat less)

Part No.	Weight	Description
3019G4-001K1	0.02 kgs	Stem grommet, individual saucer 1.59 mm diameter hole, 5 Pack
3019G4-002K1	0.02 kgs	Stem grommet, individual saucer, 2.38 mm diameter hole, 5 Pack
3019G4-003K1	0.02 kgs	Stem grommet, individual saucer, 3.18 mm diameter hole, 5 Pack
3019G4-004K1	0.02 kgs	Stem grommet, individual saucer, 4.76 mm diameter hole, 5 Pack
3019G4-005K1	0.02 kgs	Leaf grommet, individual saucer, 1.59 mm wide x 6.35mm ellipse, 5 Pack
3019G4-006K1	0.02 kgs	Leaf grommet, individual saucer, 3.18 mm wide x 12.7 mm ellipse, 5 Pack
3019G4-007K1	0.02 kgs	Leaf grommet, individual saucer, 3.18 mm wide x 12.7 mm arc, 5 Pack
3019G4-008K1	0.02 kgs	Leaf grommet, individual saucer, 1.27 mm wide x 12.7 mm slot, 5 Pack
3019G4-009K1	0.02 kgs	Stem grommet, individual saucer, blanks, 5 Pack
3019G4-010K1	0.02 kgs	Stem grommet, individual saucer, 9.52 mm diameter hole, Pack
3019G4-011K1	0.02 kgs	Stem grommet, individual saucer, 12.7 mm diameter hole, Pack

G4 series brass support washers for stem grommets 3019G4

Part No.	Weight	Description
3020G4-000K1	0.02 kgs	Brass support washer, blank 5 pack
3020G4-001K1	0.02 kgs	Brass support washer, 6.35 mm diameter hole, 5 Pack
3020G4-002K1	0.02 kgs	Brass support washer, 1.59 mm wide x 12.7 mm slot, 5 Pack
3020G4-003K1	0.02 kgs	Brass support washer, 3.18 mm wide x 12.7 mm slot, 5 Pack
3020G4-004K1	0.02 kgs	Brass support washer, 9.52 mm diameter hole, 5 Pack
3020G4-005K1	0.02 kgs	Brass support washer, 12.7 mm diameter hole, 5 Pack
3020G4-006K1	0.02 kgs	Brass support washer, 3.58 mm diameter hole, 5 Pack

G2 specimen holder grommets (designed to accept blade-type leaves up to 25.4 mm in width)

Part No.	Weight	Description
3017G2-001K1	0.01 kgs	Broad leaf sealing grommet, blank, 5 pack
3017G2-004K1	0.01 kgs	Broad leaf sealing grommet, razor cut, 5 Pack
3017G2-005K1	0.01 kgs	Broad leaf sealing grommet, slot 29.21 mm long x 2.89 mm wide 5 Pack
3017G2-006K1	0.01 kgs	Broad leaf sealing grommet, slot 29.21 mm long x 1.27 mm wide 5 Pack

G2 series brass washers

Part No. Weight Description

3021G2-000K1 0.02 kgs G2 series brass washer blank, 5 pack
3021G2-001K1 0.02 kgs G2 series brass washer, 1.59 mm slot 5 Pack

Special kits

Part No.	Weight	Description
3017G2K1	0.04 kgs	Complete G2 series grommet kit, includes 1 each of 3017G2-001, 3017G2-004, 3017G2-005, 3017G2-006 grommets plus 1 each 3021G2-000 and 3021G2-001 brass washers.
3018G4K1	0.01 kgs	Stem sleeve sealing kit, includes 1 each of all sealing sleeves, plus 1 3019G4-011 grommet, and 1 each of the brass support washers 3020G4-000, 3020G4-001, 3020G4- 006 (used with G4 Specimen Holder)
3017G2K1	0.02 kgs	Complete sleeve kit, includes 1 each of 3018G4-000, 3018G4-001, 3018G4-002,3018G4-003, and 3018G4-004.
3019K1	0.03 kgs	Stem grommet kit, includes 1 each of 3019G4-001, 3019G4-002, 3019G4-003, 3019G4-004, plus 1 each of 3020G4-000, 3020G4-001, 3020G4-006 support Washers
3019K2	0.03 kgs	Leaf grommet kit, includes 1 each of the Leaf Grommets (3019G4-005, 3019G4-006, 3019G4-007, and 3019G4-008, plus 1 each of 3020G4-000, 3020G4-001, 3020G4-006 support washers
3019K3	0.11 kgs	Complete grommet kit, includes 1 each of all items shown in Figure 1.
3020G4K1	0.01 kgs	Brass support washer kit, for round hole grommets 3019G4, complete Set (1 of each round hole washer and 1 blank).
3020G4K2	0.04 kgs	Brass support washer kit, for arcs/ellipses grommets, 3019G4, complete set (1 of each slotted washer and 1 blank)

NOTE - When ordering a Plant Water Status Console for the first time, it includes:

Any of 3000/3005 Series Plant Water Status Console with a G2 Specimen Holder: 3017G2K1 - Complete G2 Series Grommet Kit (as shown in Fig. 3)

Any of 3000/3005 Series Plant Water Status Console with a G4 Specimen Holder: 3018G4K1 Stem Sleeve Sealing Kit - See l ist of items that are included above.