Daughtridge Sales Co., Inc.

Toll Free: 800-967-7507 • Fax: 252-977-2192

1785 Mainfold Gauges

SIZE: 2-1/2”
CASE: ABS. (P-1785, red; CR-1785, blue)
RING AND WINDOW: Threaded,
polycarbonate
POINTER: Aluminum, black finish
DIAL: Steel, white background with black
markings. Refrigerant temperature scales
in red
MOVEMENT: Brass, silicone treated
BOURDON TUBE: P-1785, CR-1785 –
Phosphor bronze
CONNECTION: 1/8-27 NPT LM, brass
RANGES:
P-1785: 0-500 psi, 0-800 psi
CR-1785: 30” Hg VAC, 0-120 psi retarded
to 350 psi; 30” Hg VAC, 0-250 psi
retarded to 500 psi
ACCURACY: ±3-2-3% of span (Grade B),
applies to non-retard portion

PRODUCT DATA SHEETS

1785 Manifold Gauges

SIZE: 2-1/2”, 3-1/2”
CASE: Drawn steel, black corrosion-
resistant paint
WINDOW: Threaded, polycarbonate
standard (photograph shown with
optional steel ring)
POINTER: Aluminum, adjustable,
black finish
DIAL: Steel, white background with
black markings.
Refrigerant temperature scale in red
MOVEMENT: Silicone with glass filled
nylon link and stainless steel link rivets
BOURDON TUBE: 316 stainless steel,
soft soldered
CONNECTION: 1/4-18 NPT, LM, steel
RANGES: 30” Hg VAC, 0 to 150 psi;
30” Hg VAC, 0 to 300 psi
ACCURACY: ±3-2-3% of span (Grade B)

PRODUCT DATA SHEETS

C-1706K

P-600 Welding &
Compressed Gas Gauges

SIZE: 1-1/2”, 50 mm, 2”, and 2-1/2”
CASE: Polished brass, brass painted steel,
or brass plated ABS
MODEL (1-1/2”, 2”, and 2-1/2”)
P-601 – Brass case, high pressure
P-612 – Brass case, low pressure
P-607 – Steel case, high pressure
P-618 – Steel case, low pressure
P-605 – ABS case, high pressure
P-616 – ABS case, low pressure
(50 mm)
P-697 – Steel case, high pressure
P-698 – Steel case, low pressure
RANGES:
High Pressure (Models P-601, P-607,
P-605, or P-697) 1500 psi, 2000 psi,
3000 psi, and 4000 psi
Low Pressure (Models P-612, P-618,
P-616, or P-698) 15 psi, 30 psi, 60 psi,
100 psi, 160 psi, 200 psi, 400 psi,
600 psi, and 1000 psi
UL High Pressure (Models P-601,
P-607, P-605, or P-697) UL 404 listed
Low Pressure (Models P-612, P-618,
P-616, or P-698) 30 psi, 60 psi, and
100 psi UL 252A Class V recognized;
160 psi UL 252A Class VI recognized;
200 psi, 400 psi, 600 psi, and 1000 psi
UL 252A Class VII recognized
ACCURACY: ±3-2-3% of span (Grade B)
CONNECTION:
1-1/2” brass - 1/8-27 NPT LM;
2” and 2-1/2” brass - 1/4-18 NPT LM
Center back mount also available,
subject to minimum order quantity
BOURDON TUBE:
High Pressure (Models P-601, P-607,
P-605, or P-697) Phosphor bronze,
silver soldered
Low Pressure (Models P-612, P-618,
P-616, or P-698) 15 psi beryllium copper,
30 psi to 1499 psi phosphor bronze
POINTER: Aluminum, black finish
DIAL: Steel, white background with black
markings Major graduations and “USE NO
OIL” in red Custom dials and dual scales
available with minimum order quantity
and dial set-up charge
WINDOW: One-piece twist on
polycarbonate
MOVEMENT: Brass

PRODUCT DATA SHEETS

P-600

PA-503/A-566

SIZE: PA-503 3-1/2”, 4-1/2”;
A-566 4-1/2”
CASE: Drawn steel, black
corrosion-resistant paint
RING: Drawn steel, black
corrosion-resistant paint
PA-503: friction fit;
A-566: slip with side screws
WINDOW: Flat glass
POINTER: Aluminum, black finish;
A-566: brass, black finish
DIAL: Steel, white background with
black markings
PA-503 has red feet of water markings
A-566 has a rotating dial
MOVEMENT: Brass
BOURDON TUBE: Phosphor bronze,
soft soldered
CONNECTION: 1/4-18 ANPT LM, brass
RANGES:
PA-503 0 to 100 psi/0 to 231’ H2O
A-566 0-390’ H2O
ACCURACY: ±3-2-3% (Grade B)

PRODUCT DATA SHEETS

PA-503/A-566

P-733 Low Pressure
Diaphragm Gauge

SIZE: 2-1/2”
RANGES:
0 to 15, 35, 60, 100, 200, in H2O
0 to 20, 32, 36 oz
0 to 5, 10 psi
Dual Scale: 0 to 20 oz./35 in H2O
ACCURACY: ±3-2-3% of span
CASE: Steel, black corrosion-resistant paint
DIAL: Steel, white background with
black markings
POINTER: Aluminum, black finish with
adjustment feature
WINDOW: One-piece threaded acrylic
MOVEMENT: Brass
DIAPHRAGM CAPSULE: Copper alloy
CONNECTION: Brass 1/4-18 center-back
male (CBM)

PRODUCT DATA SHEETS

P-733

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