Ashcroft Type 330 Diaphragm Seal

Name: Ashcroft Type 330 Diaphragm Seal
Price: 207.4 USD
Availability: BackOrder

All welded flush mini diaphragm seal, metal construction prevents process media leakage, 1in process connection, 316L SS material.

Starting at $207.40

Effective April 28th, 2025 Ashcroft has added a 5% surcharge to this product. The surcharge will appear as a separate line item on the order.

View Company Reviewsby Trustpilot

Manufactured

By Ashcroft

Includes

FREE Ground Shipping on orders of $1,000 or more (some models excluded)
FREE Lifetime Tech Support

Availability

Usually ships in 3-4 weeks

Product Specs

Questions?
Call 1-800-884-4967 or email sales@instrumart.com. Open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.

Trustpilot

Overview

Features

All welded metal construction
Flush design eliminates pockets
Easy to clean diaphragm area
Provided with a 1in MNPT process connection
Compact size to fit space-restricted areas
No gaskets or bolts
For use on pressure gauges ≤3.5in from 60 to 3000 psi
316L stainless steel top housing & diaphragm material
1⁄4 & 1⁄2 NPT instrument connection
glycerin, silicone, halocarbon, syltherm filling fluid

In a rush? Ashcroft Gold Service guarantees shipment within 3 to 5 days. Call us now at 1-800-884-4967 for additional information.

This product is an accessory for the following products:

Ashcroft 1009 Analog Pressure Gauges

Stainless steel analog pressure gauge for pressures up to 30,000 psi with ±1% full scale accuracy.

Some Models in Stock

Starting at $109.11

Ashcroft 1036 In-Line Sanitary Gauge

Designed specifically for the pharmaceutical, biotechnology & food processing markets.

Starting at $463.01

Ashcroft 1082 Test Gauge

Test gauge with externally adjustable dial.

Starting at $378.37

Ashcroft 1109 Pressure Gauge

Solid front case design with full blowout back.

Starting at $354.19

Ashcroft 1125 / 1125A Differential Pressure Gauges

4.5 and 6 inch dial sizes, bronze Bourdon tube & socket.

Starting at $1,257.61

Ashcroft 1127 / 1128 Differential Pressure Gauges

316 stainless steel wetted parts, 4.5 or 6 inch dial sizes.

Starting at $1,360.46

Ashcroft 1130 Series Differential Pressure Gauges

Analog differential pressure gauges constructed with a stainless steel case with a choice of aluminum, brass, or stainless steel body.

Starting at $194.35

Ashcroft 1180 Series Analog Low Pressure Gauge

Bellows gauge for low pressure applications available in 4.5 and 6in dial sizes .

Starting at $559.02

Ashcroft 1259 Analog Pressure Gauges

Analog process gauge features 0.5% accuracy & ranges up to 20,000 psi.

Some Models in Stock

Starting at $183.49

Ashcroft 1279 Duragauge Pressure Gauge

Available with PLUS! Performance, pressure ranges from VAC to 30,000psi, 4.5in dial, phenolic case and blow-out back for safety.

Starting at $163.57

Ashcroft 1377 Duragauge Pressure Gauge

Duragauge pressure gauge designed for flush mounting.

Starting at $243.25

Ashcroft 1379 Duragauge Pressure Gauge

Duragauge pressure gauge with solid-front aluminum case.

Starting at $230.42

Ashcroft 1490 Analog Low Pressure Gauge

Analog pressure gauge with diaphragm sensing element for pressures below 15 psi.

Starting at $59.74

Ashcroft 2030 Series Digital Sanitary Gauge

One multi-function gauge that acts as a mechanical pressure gauge, transducer & switch.

Starting at $1,032.70

Ashcroft 2074, 2174, and 2274 Digital Industrial Gauges

Multi-functional digital gauge with optional 4-20mA output and 1 or 2 SPDT switches.

Starting at $506.38

Ashcroft 2462 Duragauge Pressure Gauge

General purpose gauge with 4.5in dial that looks like a 6in dial when viewed from the front .

Starting at $204.83

Ashcroft 5503 Differential Pressure Gauge

1450 psi static pressure standard with optional static pressure to 3625 psi.

Starting at $4,360.55

Ashcroft A2 Heavy Industrial Pressure Transmitter

Pressure transmitter with up to 0.25% accuracy designed for heavy industrial applications .

Starting at $643.61

Ashcroft A2X Explosion/Flame Proof Pressure Transmitter

Pressure transmitter designed for areas requiring explosion/flame proof approvals.

Starting at $822.55

Ashcroft A4 Intrinsically Safe / Non-Incendive Pressure Transmitter

Pressure transmitter designed for areas requiring intrinsically safe and non-incendive approvals.

Starting at $631.13

Ashcroft A4A Precision Dial Pressure Gauge

Ranges from 15 to 100,000 psi and ±0.1% full-scale accuracy.

Starting at $2,371.63

Ashcroft CXLdp Series Differential Pressure Transmitters

Low-pressure transmitters capable of DIN rail or standard panel mounting.

Starting at $241.82

Ashcroft DG25 Digital Pressure Gauge

0.5% accuracy, bar graph display, vacuum & compound ranges from -14.7 to 25,000 psi.

Starting at $352.44

Ashcroft DXLdp Series Differential Pressure Transmitters

Low-pressure transmitters capable of DIN rail or standard panel mounting.

Starting at $679.92

Ashcroft F5509 / F6509 Differential Pressure Gauge

316L Stainless steel case and wetted parts, ±1.6% accuracy, high static pressure limits.

Starting at $2,243.78

Ashcroft GC51 Rangeable Pressure Transmitter

Up to 8 times smaller than a conventional process transmitter with NEMA 4X IP65 aluminum housing.

Starting at $874.15

Ashcroft GC52 Differential Pressure Transmitter

Rangeable wet/wet transmitter for unidirectional & bidirectional pressure measurement.

Starting at $1,314.91

Ashcroft GC55 Wet/Wet Differential Pressure Transducer

Two-sensor design well suited for high differential pressure ranges.

Starting at $727.24

Ashcroft IXLdp Series Differential Pressure Transmitters

Ultra-low differential pressure transmitter with 0.25% accuracy & high overpressure protection.

Starting at $980.05

Ashcroft K1 Industrial Pressure Transducer

Versatile pressure transducer with polysilicon thin film technology & pressure ranges from vacuum to 20,000 psi.

Starting at $458.59

Ashcroft Type 1032 Sanitary Pressure Gauge

Sanitary pressure gauges that can be autoclaved or sterilized in place to temperatures of 300°F .

Starting at $493.59

Ashcroft Type 1084 Pocket Test Gauge

Stainless steel 3in pocket test gauge with ±0.5% accuracy.

Starting at $229.02

Ashcroft XLdp Series Differential Pressure Transmitters

Ultra-low differential pressure transmitter with 0.25% accuracy, high overpressure protection & NEMA 2 stainless steel construction.

Starting at $732.55

Ashcroft D1005PS Digital Gauge

General purpose digital gauge ±0.5% full scale accuracy.

RETIRED

Description

The Ashcroft Type 330 mini diaphragm seal has an all welded metal construction and prevents process media leakage. It's flush design eliminates pockets that could cause clogging or build-up of process media. The diaphragm area is easy to clean, and the unit is provided with a 1 inch MNPT process connection. The compact size allows it fit into space restricted areas. The Type 330 is for use on pressure gauges up to 3.5 inches from 60 to 3000 psi.