Dwyer Instruments PHP Specification And Operating Instructions

Model PHP Pneumatic Hand Pump verifies
calibration of pressure transmitters, switches,
controllers, indicators, and recorders. The Model
PHP is a hand operated pump for sourcing
pressure and vacuum. Use in conjunction with an
analog or digital gage for a complete calibration
system.
The unit provides output pressures up to 600 psi
(40 bar) or vacuum down to -28.5˝ Hg (-0.960 bar).
The reliable pump reaches 100 psi in 4 strokes.
Model PHP is fitted with a fine adjustment valve
for precise volume control and an adjustable
stroke to provide over pressure protection.
Model PHP includes a 39˝ (1 m) hose with a 1/4˝
female NPT quick fit connector. The optional
service kit includes seals, O-rings, retaining
screws and an allen key.

Figure 1 Key:

1. Pressure port - NPT female connection to
take master instruments. E.g. Digital/Analog gage.
2. Fine adjustment valve.
3. Pressure release valve.
4. Pressure/Vacuum selector.
5. Adjustable stroke for varying maximum
pressure output (over pressure protection).
6. NPT adaptor set.
7. Flexible hose to item under test.
8. Knurled 'quick-fit' connectors.
9. Pump Handles.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361,U.S.A.
Model PHP Pneumatic Hand Pump
Specifications – Operating Instructions
3-1/64
[80] MAX
8-25/64
[213]
7-21/64
[186]

SPECIFICATIONS

Output Ranges: -28.5˝ Hg to 600 psi
(-0.960 to 40 bar).
Process Connection: 1/4˝ female
NPT (quick fit).
Gage Connection: 1/4˝ female NPT.
Materials: Nickle plated brass,
anodized aluminum, and nylon.
Weight: 1.4 lbs (0.65 kg).
2
PUSH
FOR
3
VACUUM
4
9
Fig. 1
Phone: 219/879-8000
Fax: 219/872-9057
Lit-By Fax: 888/891-4963
BULLETIN TE-PHP
1/4 NPT(F)
PRESSURE PORT
1-1/4
[32]
PUSH
FOR
VACUUM
4-7/8
[124]
1
7
8
5
6
www.dwyer-inst.com
e-mail: info@dwyer-inst.com